阅读说明：本技术 一种阻燃型改性沥青防水卷材及其制备方法 (Flame-retardant modified asphalt waterproof coiled material and preparation method thereof ) 是由 郑智海 于 2021-01-18 设计创作，主要内容包括：本发明涉及一种阻燃型改性沥青防水卷材及其制备方法,防水卷材由上至下依次包括上表面隔离层、改性沥青层、胎基层、改性沥青层和下表面隔离层,改性沥青层由以下重量份数的原料制成：沥青90～100份、丁苯橡胶10～15份、SBS5～10份、改性粉煤灰纤维粉10～20份、复合阻燃剂2-5份、消泡剂1～3份、软化剂3～5份和稳定剂1～5份。本发明防水卷材使用的改性沥青中加入有经过特殊改性的粉煤灰纤维粉和复合阻燃剂,具有优良的力学性能和阻燃性能。(The invention relates to a flame-retardant modified asphalt waterproof coiled material and a preparation method thereof, wherein the waterproof coiled material sequentially comprises an upper surface isolation layer, a modified asphalt layer, a base course layer, the modified asphalt layer and a lower surface isolation layer from top to bottom, and the modified asphalt layer is prepared from the following raw materials in parts by weight: 90-100 parts of asphalt, 10-15 parts of styrene butadiene rubber, 5-10 parts of SBS, 10-20 parts of modified fly ash fiber powder, 2-5 parts of composite flame retardant, 1-3 parts of defoaming agent, 3-5 parts of softener and 1-5 parts of stabilizer. The modified asphalt used by the waterproof coiled material is added with the specially modified fly ash fiber powder and the composite flame retardant, so that the waterproof coiled material has excellent mechanical property and flame retardant property.)

1. The flame-retardant modified asphalt waterproof coiled material is characterized in that: the waterproof coiled material sequentially comprises an upper surface isolation layer, a modified asphalt layer, a base course layer, a modified asphalt layer and a lower surface isolation layer from top to bottom;

the modified asphalt layer is prepared from the following raw materials in parts by weight: 90-100 parts of asphalt, 10-15 parts of styrene butadiene rubber, 5-10 parts of SBS, 10-20 parts of modified fly ash fiber powder, 2-5 parts of composite flame retardant, 1-3 parts of defoaming agent, 3-5 parts of softener and 1-5 parts of stabilizer.

2. The flame-retardant modified asphalt waterproofing membrane according to claim 1, wherein: the composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 5-8: 1-2.

3. The flame-retardant modified asphalt waterproofing membrane according to claim 1, wherein: the modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide.

4. The flame-retardant modified asphalt waterproofing membrane according to claim 1, wherein: the modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 600-700 ℃ within 3-5min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring to a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, performing suction filtration, washing and drying to obtain acidic fly ash fiber powder;

s2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2-3MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 50-55 ℃, continuing stirring, washing with distilled water to be neutral, and drying to obtain the modified fly ash fiber powder.

5. The flame-retardant modified asphalt waterproofing membrane according to claim 4, wherein: in the step S1, 1-2g of aminopropyltriethoxysilane is added to every 1L of ethanol, and 5-8L of aminopropyltriethoxysilane ethanol solution is sprayed to every 1Kg of fly ash fiber.

6. The flame-retardant modified asphalt waterproofing membrane according to claim 4, wherein: in the step S1, 5-6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of the phosphoric acid is 60-70%.

7. The flame-retardant modified asphalt waterproofing membrane according to claim 4, wherein: in the step S2, 80-90L of sodium hydroxide solution, 3-5Kg of acidic fly ash fiber powder and 2-3L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, wherein the concentration of sodium hydroxide is 1.5 mol/L.

8. The flame-retardant modified asphalt waterproofing membrane according to claim 1, wherein: the base layer of the tire is a polyester tire or a glass fiber tire, the upper surface isolation layer is one of a polyethylene film, coated sand or a polyester isolation film, and the lower surface isolation layer is a polyethylene film.

9. The flame-retardant modified asphalt waterproofing membrane according to claim 1, wherein: the defoaming agent is one or any mixture of a mineral oil liquid powerful defoaming agent and a silicon polyether defoaming agent, the softening agent is rubber oil or aromatic oil, and the stabilizing agent is metal soap, organic antimony or organic rare earth.

10. The preparation method of the flame-retardant modified asphalt waterproof coiled material is characterized by comprising the following steps of: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Technical Field

The invention relates to the technical field of waterproof coiled materials, in particular to a flame-retardant modified asphalt waterproof coiled material and a preparation method thereof.

Background

The waterproof coiled material is mainly used for building walls, roofs, tunnels, highways, refuse landfills and the like, can be curled into a roll-shaped flexible building material product for resisting external rainwater and underground water leakage, is used as a leakage-free connection between an engineering foundation and a building, is a waterproof first barrier of the whole engineering, and plays a vital role in the whole engineering. The waterproof coiled material mainly comprises two types, namely an asphalt waterproof coiled material and a polymer waterproof coiled material. The modified asphalt waterproof coiled material is prepared by using rubber modified petroleum asphalt as a dipping covering layer and using polyester fiber non-woven fabric, jute cloth, glass fiber felt and the like as a base and through the working procedures of material selection, material mixing, co-melting, dipping, composite forming, curling and the like. The asphalt waterproof coiled material is widely applied to waterproof engineering of roofs, basements, toilets and the like of industrial and civil buildings and waterproof and moistureproof engineering of roof gardens, roads, bridges, tunnels, parking lots, swimming pools and the like.

At present, elastomer modified asphalt waterproof coiled materials are still mainstream products in China, and particularly when the materials are used on the exposed roof, the excellent high-temperature resistance of the materials is difficult to replace by other materials, and the combustion of asphalt is an unavoidable problem in the fire safety of buildings. Asphalt is easy to burn after contacting with a fire source, and can melt, drip and flow during burning, so that the fire spread and expand. In the combustion process, the asphalt can also decompose flammable gases such as hydrogen, methane and the like, and the combustion of the flammable gases enhances the fire. Therefore, the flame retardant property of the used asphalt is improved, the prepared waterproof coiled material with high flame retardant property can effectively prevent, delay or stop the propagation of flame when a fire disaster happens, the flame retardant effect is achieved, and the loss of lives and properties of consumers is effectively reduced. The research on the aspect of preparing the waterproof coiled material by adopting the asphalt to prepare the modified asphalt waterproof coiled material with more excellent performances, such as waterproof, flame retardant, tensile strength and the like, is a problem to be solved urgently.

Disclosure of Invention

The invention aims to solve the technical problems and provide a flame-retardant modified asphalt waterproof coiled material and a preparation method thereof.

The purpose of the invention is realized as follows: the flame-retardant modified asphalt waterproof coiled material comprises an upper surface isolation layer, a modified asphalt layer, a base course layer, a modified asphalt layer and a lower surface isolation layer from top to bottom in sequence;

the modified asphalt layer is prepared from the following raw materials in parts by weight: 90-100 parts of asphalt, 10-15 parts of styrene butadiene rubber, 5-10 parts of SBS, 10-20 parts of modified fly ash fiber powder, 2-5 parts of composite flame retardant, 1-3 parts of defoaming agent, 3-5 parts of softener and 1-5 parts of stabilizer.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: the composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 5-8: 1-2.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: the modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: the modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 600-700 ℃ within 3-5min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring to a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, performing suction filtration, washing and drying to obtain acidic fly ash fiber powder;

s2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2-3MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 50-55 ℃, continuing stirring, washing with distilled water to be neutral, and drying to obtain the modified fly ash fiber powder.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: in the step S1, 1-2g of aminopropyltriethoxysilane is added to every 1L of ethanol, and 5-8L of aminopropyltriethoxysilane ethanol solution is sprayed to every 1Kg of fly ash fiber.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: in the step S1, 5-6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of the phosphoric acid is 60-70%.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: in the step S2, 80-90L of sodium hydroxide solution, 3-5Kg of acidic fly ash fiber powder and 2-3L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, wherein the concentration of sodium hydroxide is 1.5 mol/L.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: the base layer of the tire is a polyester tire or a glass fiber tire, the upper surface isolation layer is one of a polyethylene film, coated sand or a polyester isolation film, and the lower surface isolation layer is a polyethylene film.

The flame-retardant modified asphalt waterproof coiled material is further optimized by the following steps: the defoaming agent is one or any mixture of a mineral oil liquid powerful defoaming agent and a silicon polyether defoaming agent, the softening agent is rubber oil or aromatic oil, and the stabilizing agent is metal soap, organic antimony or organic rare earth.

A preparation method of a flame-retardant modified asphalt waterproof coiled material comprises the steps of adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of a matrix layer with modified asphalt layers with required thicknesses, cooling, and respectively coating isolation layers on the outer surfaces of the modified asphalt layers to obtain the modified asphalt waterproof coiled material.

The invention has the beneficial effects that:

the modified asphalt used by the waterproof coiled material is added with a composite flame retardant, the composite flame retardant comprises an organic flame-retardant component dimethyl methyl phosphate and an inorganic flame-retardant component modified aluminum hydroxide, and the two flame-retardant components with different performances can play a good flame-retardant effect after being reasonably compatible;

secondly, the modified asphalt used by the waterproof coiled material is added with the fly ash fiber powder which is specially modified, the fly ash fiber is firstly combined with the aminopropyltriethoxysilane by a spraying mode, then the surface of the fly ash fiber is covered with a layer of aminopropyltriethoxysilane, then the fly ash fiber powder combined with the aminopropyltriethoxysilane is combined with the fly ash fiber powder in a chemical bonding mode through rapid heating and grinding operations, the fly ash fiber powder combined with the aminopropyltriethoxysilane is modified by acid and then is cross-linked and modified with the sodium lignosulphonate under the action of epichlorohydrin, on one hand, the number of active groups of the fly ash fiber powder is increased by chemical bonding, the organic activity of the fly ash fiber powder is improved, more chemical bonds can be established between the active groups of the fly ash fiber powder and the asphalt, and the interface bonding strength of the fly ash fiber powder and the asphalt is improved, on the other hand, the bonding effect can be generated between the alkoxy group of the aminopropyltriethoxysilane and the phenolic hydroxyl group of the sodium lignosulfonate bonded on the fly ash fiber powder and between the organic functional groups such as vinyl, amino and the like of the aminopropyltriethoxysilane and the asphalt, so that the asphalt, the fly ash fiber powder and the sodium lignosulfonate can generate stronger bonding force, and the mechanical property of the modified asphalt layer is further improved.

Detailed Description

The technical solution of the present invention is further described below with reference to specific embodiments.

Example 1

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the polyester child, and the upper surface isolation layer is the polyethylene film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 100Kg of asphalt, 10Kg of styrene-butadiene rubber, 10Kg of SBS10Kg, 10Kg of modified fly ash fiber powder, 3Kg of antifoaming agent, 2 parts of composite flame retardant, 3Kg of softening agent and 5Kg of stabilizer.

The defoaming agent is mineral oil liquid powerful defoaming agent, the softening agent is rubber oil, and the stabilizing agent is organic rare earth.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 700 ℃ within 3min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring to a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1g aminopropyltriethoxysilane is added to 1L ethanol, and 5L aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg fly ash fiber.

In step S1, 5L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 70%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate is added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 90L of sodium hydroxide solution, 5Kg of acidic fly ash fiber powder and 3L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, wherein the concentration of sodium hydroxide is 1.5 mol/L.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 5: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1200 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 2

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is the tectorial membrane sand, and the lower surface isolation layer is the polyethylene membrane.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 90Kg of asphalt, 15Kg of styrene-butadiene rubber, 5Kg of SBS5Kg, 20Kg of modified fly ash fiber powder, 5Kg of composite flame retardant, 1Kg of defoamer, 5Kg of softener and 1Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is rubber oil, and the stabilizing agent is metal soap.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 600 ℃ within 5min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring to a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 2g aminopropyltriethoxysilane is added to 1L ethanol, and 8L aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of the phosphoric acid is 60%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate is added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 3MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 50 ℃, continuing stirring, washing with distilled water to be neutral, and drying to obtain the modified fly ash fiber powder.

In step S2, 80L of sodium hydroxide solution, 3Kg of acidic fly ash fiber powder and 2L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, wherein the concentration of sodium hydroxide is 1.5 mol/L.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 5: 2.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 120 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 3

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of composite flame retardant, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 650 ℃ within 4min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring into a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2.5MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 4

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 3Kg of composite flame retardant, 3Kg of antifoaming agent, 3Kg of softening agent and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, then adding SBS, heating to 180 ℃, uniformly stirring, adding a softening agent and a stabilizing agent, uniformly stirring, then adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, then spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 5

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of fly ash fiber powder, 3Kg of composite flame retardant, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into the oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 6

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of composite flame retardant, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: transferring the fly ash fiber to a heating furnace, heating to 650 ℃ within 4min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring to a ball mill, grinding for 30min to obtain fly ash fiber powder, dissolving the fly ash fiber powder into paraxylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2.5MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 7

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of composite flame retardant, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, drying, transferring to a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2.5MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 8

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, compound fire retardant 3Kg, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of antifoaming agent, 3Kg of softening agent and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 650 ℃ within 4min, keeping the temperature for 10min, cooling to 120 ℃, taking out, transferring to a ball mill, and grinding for 30min to obtain fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 9

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of composite flame retardant, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 650 ℃ within 4min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring into a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, adding epoxy chloropropane, heating to 55 ℃, continuously stirring, washing with distilled water to be neutral, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The composite flame retardant is a mixture of dimethyl methyl phosphate and modified aluminum hydroxide in a weight ratio of 8: 1.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding a composite flame retardant and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 10

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of antifoaming agent, 3Kg of softening agent and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 650 ℃ within 4min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring into a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2.5MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent, a stabilizing agent and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate tire body layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the tire base layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 11

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of modified aluminum hydroxide, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 650 ℃ within 4min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring into a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2.5MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The modified aluminum hydroxide is prepared by the following method: taking aluminum hydroxide powder, loading nickel nitrate on the surface of the aluminum hydroxide particle by using an isometric impregnation method, and then drying and crushing the aluminum hydroxide powder to obtain the modified aluminum hydroxide. Wherein the amount of the nickel nitrate in the modification process of the modified aluminum hydroxide is 1.5 percent of the aluminum hydroxide powder, and the granularity of the aluminum hydroxide powder is 1500 meshes.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding modified aluminum hydroxide and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front side and the back side of the matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

Example 12

The utility model provides a fire-retardant type modified asphalt waterproofing membrane, waterproofing membrane include upper surface isolation layer, modified asphalt layer, child basic unit, modified asphalt layer and lower surface isolation layer from top to bottom in proper order.

The child basic unit is the fine child of glass, and the upper surface isolation layer is polyester barrier film, and the lower surface isolation layer is the polyethylene film.

The modified asphalt layer is prepared from the following raw materials in parts by weight: 95Kg of asphalt, 12Kg of styrene-butadiene rubber, 8Kg of SBS8Kg, 15Kg of modified fly ash fiber powder, 3Kg of dimethyl methyl phosphate, 3Kg of defoamer, 3Kg of softener and 3Kg of stabilizer.

The defoaming agent is a silicon polyether defoaming agent, the softening agent is aromatic oil, and the stabilizing agent is organic antimony.

The modified fly ash fiber powder is prepared by the following method:

s1: adding aminopropyltriethoxysilane into an ethanol solution to obtain an aminopropyltriethoxysilane ethanol solution, then uniformly spraying the aminopropyltriethoxysilane ethanol solution on fly ash fibers, transferring the fly ash fibers into a heating furnace, heating to 650 ℃ within 4min, preserving heat for 10min, cooling to 120 ℃, taking out, transferring into a ball mill, grinding for 30min to obtain fly ash fiber powder, then dissolving the fly ash fiber powder into p-xylene, adding a phosphoric acid solution, stirring at room temperature, carrying out suction filtration, washing and drying to obtain the acidic fly ash fiber powder.

In step S1, 1.5g of aminopropyltriethoxysilane is added to 1L of ethanol, and 6L of aminopropyltriethoxysilane ethanol solution is sprayed to 1Kg of fly ash fiber.

In step S1, 6L of phosphoric acid is added into every 1Kg of fly ash fiber powder, and the concentration of phosphoric acid is 65%.

S2: adding sodium lignosulfonate into a reaction kettle filled with a sodium hydroxide solution, adding acidic fly ash fiber powder while stirring, sealing the reaction kettle after all the sodium lignosulfonate and the acidic fly ash fiber powder are added, introducing nitrogen into the reaction kettle to enable the pressure in the reaction kettle to reach 2.5MPa, standing for 10min, opening the reaction kettle, adding epoxy chloropropane, heating to 55 ℃, continuing stirring, washing to be neutral by using distilled water, and drying to obtain the modified fly ash fiber powder.

In step S2, 85L of sodium hydroxide solution, 4Kg of acidic fly ash fiber powder and 2.5L of epichlorohydrin are added to every 5Kg of sodium lignosulfonate, and the concentration of sodium hydroxide is 1.5 mol/L.

The preparation method of the waterproof roll comprises the following steps: adding asphalt and styrene butadiene rubber into a reaction kettle, heating to 150 ℃, uniformly stirring, adding SBS, heating to 180 ℃, uniformly stirring, adding modified fly ash fiber powder, a softening agent and a stabilizing agent, uniformly stirring, adding dimethyl methyl phosphate and a defoaming agent, uniformly stirring to obtain a modified asphalt material, conveying the modified asphalt material to an oil immersion tank, spreading an intermediate matrix layer into an oil immersion layer, performing oil immersion coating, coating the front and back surfaces of a matrix layer with the modified asphalt layer with the required thickness, cooling, and respectively coating an isolation layer on the outer surface of the modified asphalt layer to obtain the modified asphalt waterproof coiled material.

And (3) comparing the performances of the waterproof roll:

the waterproof rolls prepared in examples 1 to 12 were tested for their properties, and the test results are shown in the following table:

from the results of the above table it can be seen that: the limiting oxygen index of the waterproof rolls in examples 10 to 12 is lower than that of the other examples, because no flame retardant is added in example 10, and therefore, the limiting oxygen index of example 10 is the lowest and the flame retardant performance is poor. And the single flame retardant component is added in each of the examples 11 and 12, so that the limiting oxygen index of the waterproof roll material in the two examples is higher than that in the example 10, but lower than that in the examples 1-9, therefore, the composite flame retardant of the invention is obviously improved in the flame retardant property of the waterproof roll material compared with the first flame retardant component. In terms of mechanical properties, the mechanical properties of examples 1, 2, 3, 10, 11 and 12 are better, while the mechanical properties of the waterproof rolls of examples 4-9 are relatively poorer, particularly example 4, the mechanical properties are the worst, because example 4 is not added with modified fly ash fibers during the preparation process, example 5 is added with ordinary fly ash fibers which are not modified, so that the bonding between asphalt and each raw material is obviously reduced compared with examples 1-3, examples 6 and 8 are not added with aminopropyltriethoxysilane during modification, and example 8 is not added with sodium lignosulfonate and epichlorohydrin during modification, so that no more chemical bonding is formed in the asphalt finally, and the bonding between the asphalt and each raw material is relatively poorer. Example 7 the fly ash fiber is not heated rapidly before acid modification in the modification process, so that the tensile property of the fly ash fiber is reduced, and example 9 is not pressurized by introducing nitrogen in the modification process, so that the tensile property is enhanced compared with example 7, but is still lower than that of examples 1-3. The applicant believes that the dispersion degree and the bonding degree between the aminopropyltriethoxysilane and the fly ash fiber are reduced because the fly ash fiber modified by the aminopropyltriethoxysilane is not rapidly heated in a short time, and the reaction process of modification tends to be discrete and influences the final effect of modification because nitrogen is not introduced for pressurization in the modification process of sodium lignosulfonate and epichlorohydrin, so that the mechanical property of the waterproof roll is reduced. But the mechanical property of the modified fly ash is better than that of example 7, so that the influence of the non-nitrogen-introduction pressurizing during the modification process of the sodium lignosulfonate and the epoxy chloropropane on the performance of the final coil is smaller than the influence of the non-rapid heating of the fly ash fiber before the acid modification during the modification process on the performance of the final coil.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.