阅读说明：本技术 一种高强度tpo防水卷材制备配方及其制备方法 (Preparation formula and preparation method of high-strength TPO waterproof coiled material ) 是由 周辉 孙钟富 陆丽华 于 2020-05-12 设计创作，主要内容包括：本发明涉及防水卷材领域,具体为一种高强度TPO防水卷材制备配方,包括以下重量份的成分：乙烯树脂30-35份、硬脂酸5-7份、陶土10-15份、氨基硅烷4-9份、硫磺8-12份、纳米阻燃剂18-23份、填料6-12份、抗氧剂12-20份、光稳定剂5-7份。还提供了一种高强度TPO防水卷材制备的制备工艺。该一种高强度TPO防水卷材制备配方及其制备方法,TPO防水卷材具备强度高、不易氧化与阻燃效果好的优点。(The invention relates to the field of waterproof rolls, in particular to a preparation formula of a high-strength TPO waterproof roll, which comprises the following components in parts by weight: 30-35 parts of vinyl resin, 5-7 parts of stearic acid, 10-15 parts of argil, 4-9 parts of aminosilane, 8-12 parts of sulfur, 18-23 parts of nano flame retardant, 6-12 parts of filler, 12-20 parts of antioxidant and 5-7 parts of light stabilizer. Also provides a preparation process for preparing the high-strength TPO waterproof coiled material. According to the preparation formula and the preparation method of the high-strength TPO waterproof coiled material, the TPO waterproof coiled material has the advantages of high strength, difficulty in oxidation and good flame retardant effect.)

1. A formula for preparing a high-strength TPO waterproof coiled material is characterized in that: comprises the following components in parts by weight: 30-35 parts of vinyl resin, 5-7 parts of stearic acid, 10-15 parts of argil, 4-9 parts of aminosilane, 8-12 parts of sulfur, 18-23 parts of nano flame retardant, 6-12 parts of filler, 12-20 parts of antioxidant and 5-7 parts of light stabilizer.

2. The preparation formula of the high-strength TPO waterproof roll according to claim 1 is characterized in that: the nano flame retardant comprises fumed silica, cage-type polysilsesquioxane, trapezoidal polysilsesquioxane, nano ammonium polyphosphate, nano antimony trioxide, a carbon nano-tube, nano aluminum hydroxide, nano zinc borate, nano titanium dioxide, nano layered montmorillonite, borate and talcum powder, and is in a granular shape.

3. The preparation formula of the high-strength TPO waterproof roll according to claim 1 is characterized in that: the argil comprises 30-40 parts of nepheline orthoclase, 8-15 parts of spodumene, 1-5 parts of soda ash, 20-35 parts of kaolin, 9-13 parts of ball clay and 3-5 parts of cobalt blue pigment.

4. The preparation formula of the high-strength TPO waterproof roll according to claim 1 is characterized in that: the filler is one or more of calcium carbonate, calcite and talcum powder.

5. The preparation formula and the preparation process of the high-strength TPO waterproof coiled material according to claim 1 are characterized in that: the light stabilizer comprises 80-95% of mixed light stabilizing liquid and 5-20% of surfactant, and is uniformly mixed, wherein the mixing environment temperature is 30-80 ℃, the stirring speed is 600r/min, and the stirring time is 30 min.

6. The preparation formula of the high-strength TPO waterproof coiled material according to claim 5 is characterized in that: the mixed light-stable liquid comprises a mixture of sebacate, diester sebacate and methyl-1, 2,2,6, 6-pentamethyl-4-piperidine-sebacate, and a mixed liquid of 2- [2,2,6, 6-tetramethyl-4- (3,5, 5-trimethyl-hexanoyloxy) -piperidyl ] -3,5, 5-trimethylhexanoate ethyl ester, wherein the surfactant is a mixture of an anionic surfactant and a cationic surfactant.

7. The preparation formula of the high-strength TPO waterproof roll according to claim 1 is characterized in that: comprises the following components in parts by weight: 31 parts of vinyl resin, 7 parts of stearic acid, 10 parts of argil, 4 parts of aminosilane, 8 parts of sulfur, 10 parts of nano flame retardant, 12 parts of filler, 13 parts of antioxidant and 5 parts of light stabilizer.

8. The preparation formula of the high-strength TPO waterproof roll according to claim 1 is characterized in that: the stearic acid is prepared as follows: hydrolyzing hardened grease, tallow or sheep grease in the environment of a decomposer, and then acidifying, distilling, squeezing, acid washing and decoloring to obtain the composite material, wherein the decomposer comprises a sulfonated mixture of toluene and naphthalene.

9. A preparation technology for preparing a high-strength TPO waterproof coiled material is characterized by comprising the following steps of:

s1: preparing vinyl resin, stearic acid, clay, aminosilane, sulfur, nano flame retardant, filler, antioxidant and light stabilizer components according to the weight parts of the formula of any one of claims 1 to 8;

s2: putting mixed materials of vinyl resin, stearic acid, argil, aminosilane, sulfur, a nano flame retardant, a filler, an antioxidant and a light stabilizer into a stirring device, then conveying the mixed materials into a feeding machine, then conveying the mixed materials into a hot air drying device for drying, and conveying the dried materials into a feeding buffer bin through a feeding machine;

s3: the dried material is sent to an extrusion device for hot melt extrusion;

s4: shaping the melted material in the step S3 into a sheet material through a three-roll calender, and controlling the temperature through a temperature control device in the shaping process;

s5: and (5) drawing, cooling and rolling the product sheet in the S4 to obtain the waterproof roll.

10. The preparation process of high strength TPO waterproof roll according to claim 9, characterized in that: the stirring device comprises a stirrer, the hot air drying device comprises a hot air dryer, and the screw extrusion device comprises a double-screw extruder.

Technical Field

The invention relates to the field of waterproof rolls, in particular to a preparation formula and a preparation method of a high-strength TPO waterproof roll.

Background

TPO is thermoplastic polyolefin, belong to one kind of synthetic polymer waterproofing membrane, a new material that has prevailed in recent years internationally, and occupy the important position gradually, can be used for roofing waterproof, the underground waterproofing of building, current TPO waterproofing membrane has the drawback, intensity is not high, the material is too soft, moulding effect is poor, secondly, oxidation resistance is poor, because waterproofing membrane's service environment, moisture, oxygen etc. are contained on every side, easily cause the oxidation of coiled material self, cause the material too hard, cracked, reduce life, in addition, although add the fire retardant in the production process of coiled material, but fire-retardant effect is not good, use safety inadequately, for this reason, we propose a high strength TPO waterproofing membrane preparation formula and preparation method.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a preparation formula and a preparation method of a high-strength TPO waterproof coiled material, and the preparation formula and the preparation method have the advantages of high strength, difficult oxidation and good flame retardant effect.

(II) technical scheme

In order to achieve the purposes of high strength, difficult oxidation and good flame retardant effect, the invention provides the following technical scheme: a preparation formula of a high-strength TPO waterproof coiled material comprises the following components in parts by weight: 30-35 parts of vinyl resin, 5-7 parts of stearic acid, 10-15 parts of argil, 4-9 parts of aminosilane, 8-12 parts of sulfur, 18-23 parts of nano flame retardant, 6-12 parts of filler, 12-20 parts of antioxidant and 5-7 parts of light stabilizer.

Preferably, the nano flame retardant comprises fumed silica, cage-type polysilsesquioxane, ladder-type polysilsesquioxane, nano ammonium polyphosphate, nano antimony trioxide, a carbon nanotube, nano aluminum hydroxide, nano zinc borate, nano titanium dioxide, nano layered montmorillonite, borate and talcum powder, and the nano flame retardant is in a granular shape.

Preferably, the argil comprises 30-40 parts of nepheline orthoclase, 8-15 parts of spodumene, 1-5 parts of soda ash, 20-35 parts of kaolin, 9-13 parts of ball clay and 3-5 parts of cobalt blue pigment.

Preferably, the filler is one or more of calcium carbonate, calcite and talcum powder.

Preferably, the light stabilizer comprises 80-95% of mixed light stabilizing liquid and 5-20% of surfactant, the mixing environment temperature is 30-80 ℃, the stirring speed is 600r/min, and the stirring time is usually 30 min.

Preferably, the mixed light-stable liquid comprises a mixture of sebacate, diester sebacate and methyl-1, 2,2,6, 6-pentamethyl-4-piperidine-sebacate, and a mixed liquid of 2- [2,2,6, 6-tetramethyl-4- (3,5, 5-trimethyl-hexanoyloxy) -piperidyl ] -3,5, 5-trimethyl-ethyl hexanoate, and the surfactant is a mixture of anionic surfactant and cationic surfactant.

Preferably, the composition comprises the following components in parts by weight: 31 parts of vinyl resin, 7 parts of stearic acid, 10 parts of argil, 4 parts of aminosilane, 8 parts of sulfur, 10 parts of nano flame retardant, 12 parts of filler, 13 parts of antioxidant and 5 parts of light stabilizer.

Preferably, the stearic acid is prepared as follows: hydrolyzing hardened grease, tallow or sheep grease in the environment of a decomposer, and then acidifying, distilling, squeezing, acid washing and decoloring to obtain the composite material, wherein the decomposer comprises a sulfonated mixture of toluene and naphthalene.

Still provide the preparation technology of a high strength TPO waterproofing membrane preparation, its characterized in that:

s1: preparing vinyl resin, stearic acid, argil, amino silane, sulfur, a nano flame retardant, a filler, an antioxidant and a light stabilizer according to the weight parts of the formula;

s2: putting mixed materials of vinyl resin, stearic acid, argil, aminosilane, sulfur, a nano flame retardant, a filler, an antioxidant and a light stabilizer into a stirring device, then conveying the mixed materials into a feeding machine, then conveying the mixed materials into a hot air drying device for drying, and conveying the dried materials into a feeding buffer bin through a feeding machine;

s3: the dried material is sent to an extrusion device for hot melt extrusion;

s4: shaping the melted material in the step S3 into a sheet by a three-roll calender, and controlling the temperature by a temperature control device in the shaping process;

s5: and (5) drawing, cooling and rolling the product sheet in the S4 to obtain the waterproof roll.

Preferably, the stirring device comprises a stirrer, the hot air drying device comprises a hot air dryer, and the screw extrusion device comprises a twin-screw extruder.

(III) advantageous effects

Compared with the prior art, the invention provides a preparation formula and a preparation method of a high-strength TPO waterproof coiled material, and the preparation formula has the following beneficial effects:

1. according to the formula and the preparation method of the high-strength TPO waterproof coiled material, during preparation, argil is added into a mixed material, wherein the argil is formed by mixed powder of 30-40 parts of nepheline orthoclase, 8-15 parts of spodumene, 1-5 parts of soda ash, 20-35 parts of kaolin, 9-13 parts of ball clay and 3-5 parts of cobalt blue pigment, the argil has good drying and sintering properties, the argil is added into the mixed material for mixing, and after the argil is subjected to hot melting and shaping to form a coiled material, the strength of the TPO coiled material is effectively increased, the problem that the TPO coiled material is too soft in texture and difficult to shape is solved, the strength is slightly increased, the strength and the plasticity of the coiled material are improved, and the use is better.

2. According to the formula and the preparation method of the high-strength TPO waterproof coiled material, under the action of water and oxygen, chemical bonds of organic molecules of the coiled material are broken to generate active free radicals and hydroperoxides, the hydroperoxides are subjected to decomposition reaction to generate hydroxyl free radicals and hydroxyl free radicals, the free radicals further initiate a series of free radical chain type reactions to cause fundamental changes of the structure and the property of organic compounds, and the added antioxidant can eliminate the generated free radicals in real time, promote the decomposition of the hydroperoxides and prevent the chain type reactions, so that the antioxidant can inhibit or delay the oxidative degradation of plastics or rubber and prolong the service life.

3. According to the formula and the preparation method of the high-strength TPO waterproof coiled material, the nano flame retardant is added, and the particles are formed by mixing fumed silica, cage type polysilsesquioxane, trapezoidal polysilsesquioxane, nano ammonium polyphosphate, nano antimony trioxide, nano carbon tubes, nano aluminum hydroxide, nano zinc borate, nano titanium dioxide, nano layered montmorillonite, borate and talcum powder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.