阅读说明：本技术 水性环保无毒的防水、防火涂料 (Water-based environment-friendly nontoxic waterproof and fireproof coating ) 是由 庄继昌 于 2018-05-31 设计创作，主要内容包括：本发明涉及一种水性环保无毒的防水、防火涂料,其由高分子乳化树脂以及防火添加粉料以30：60的重量比例组成,其中,该防火添加粉料主要包含有纳米石墨烯粉末、碳层形成剂、碳层催化剂以及发泡剂,借此,使被涂表面在遇到火源时可以形成致密的发泡区并隔绝底材与火源的接触以降低火源的延续及扩张,除具有防水、防火的功能外,更具有环保无毒的优点。(The invention relates to a water-based environment-friendly nontoxic waterproof and fireproof coating, which is prepared from polymer emulsion resin and fireproof additive powder, wherein the weight ratio of the polymer emulsion resin to the fireproof additive powder is 30: 60, wherein the fireproof additive powder mainly comprises nano graphene powder, a carbon layer forming agent, a carbon layer catalyst and a foaming agent, so that a compact foaming area can be formed on the coated surface when the coated surface meets a fire source, and the substrate is isolated from the fire source to reduce the continuation and expansion of the fire source, and the fireproof coating has the advantages of water resistance, fire resistance, environmental protection and no toxicity.)

1. A water-based environment-friendly nontoxic waterproof and fireproof coating is prepared from high-molecular emulsion resin and fireproof additive powder, wherein the weight ratio of the high-molecular emulsion resin to the fireproof additive powder is 30: 60, and is characterized in that the fireproof additive powder mainly comprises graphene, a carbon layer forming agent, a carbon layer catalyst and a foaming agent, and the weight parts of the fireproof additive powder are respectively as follows: 1 part of graphene, 2.5-4 parts of a carbon layer forming agent, 4-5 parts of a carbon layer catalyst and 1.5-2 parts of a foaming agent.

2. The aqueous, environmentally friendly, non-toxic, waterproof, flameproof coating of claim 1, wherein the graphene is synthesized by nano means.

3. the aqueous environment-friendly nontoxic waterproof and fireproof coating as claimed in claim 1 or 2, wherein the pH value of the graphene is between 6.5 and 8.0.

4. The aqueous environment-friendly nontoxic waterproof and fireproof coating as claimed in claim 1 or 2, wherein the particle size of the graphene is 80-250 mesh.

5. The aqueous, environmentally friendly, non-toxic, water-and fire-resistant coating of claim 1, wherein the carbon layer forming agent is a polyol.

6. The aqueous environmentally friendly nontoxic water repellent, fire retardant coating of claim 1, wherein the carbon layer forming agent is a polysaccharide.

7. The aqueous, environmentally friendly, non-toxic, water repellent, fire retardant coating of claim 1, wherein the carbon layer catalyst is a phosphorous-containing compound.

8. The aqueous, environmentally friendly, non-toxic, water and fire resistant coating of claim 1 wherein the blowing agent is selected from at least one of urea, melamine, organic amine, or chlorinated wax.

Technical Field

The invention relates to a coating, in particular to a water-based environment-friendly nontoxic waterproof and fireproof coating.

Background

In addition to planning of safe escape space, the most important is the use of fireproof building materials and decoration materials to prevent fire sources from burning and expanding quickly to influence escape of people, for example, in buildings, the use of the board is especially important, the board can be used as partition materials, office furniture, office cabinets, home indoor furniture and the like in the buildings, the use range of the board can be quite wide, and common boards can be attached to the buildings, or the board can be matched with wallpaper to be used as a decorative partition, or the board and a decorative layer are attached to the surfaces of furniture and cabinets to be used.

However, since the plate-shaped building materials are usually flammable materials such as wood and plastic materials, when a fire breaks out in a building, the flammable plate-shaped building materials are necessarily ignited, and the objects to be adhered are not protected, so that the fire gradually spreads and expands, and the fire cannot be collected at once, and serious people may even cause loss of life and property of the people.

Disclosure of Invention

In view of the above, the main object of the present invention is to provide a water-based, environmentally friendly, non-toxic, waterproof, fireproof coating, which can block the spread of fire and protect inflammable substances.

In order to achieve the purpose, the water-based environment-friendly nontoxic waterproof and fireproof coating provided by the invention is prepared by mixing a high-molecular emulsion resin and fireproof additive powder in a proportion of 30: 60, and is characterized in that the fireproof additive powder mainly comprises graphene, a carbon layer forming agent, a carbon layer catalyst and a foaming agent, and the weight parts of the fireproof additive powder are respectively as follows: 1 part of graphene, 2.5-4 parts of a carbon layer forming agent, 4-5 parts of a carbon layer catalyst and 1.5-2 parts of a foaming agent; therefore, when the coated surface meets a fire source, a compact foaming area can be formed, and the substrate is isolated from the fire source so as to reduce the continuation and expansion of the fire source.

Preferably, the graphene is synthesized by a nano method.

Preferably, the pH value of the graphene is between 6.5 and 8.0.

Preferably, the particle size of the graphene is 80 to 250 meshes.

preferably, the carbon layer forming agent is a polyol.

Preferably, the carbon layer forming agent is a polysaccharide.

Preferably, the carbon layer catalyst is a phosphorus-containing compound.

Preferably, the foaming agent is selected from at least one of urea, melamine, organic amine or chlorinated wax.

The water-based environment-friendly nontoxic waterproof and fireproof coating provided by the invention is uniformly coated on a plate-shaped building material, when the waterproof and fireproof coating is contacted with flame, the surface of the coating is gradually expanded due to heating to form a foaming area, and the part contacted with the flame is black, but cannot spread to the side, namely the foaming area cannot be expanded, and the flame is prevented from spreading to the plate-shaped building material in the coating, so that the flame spreading and burning can be effectively prevented.

Drawings

FIG. 1 is a schematic view of a plate-shaped building material coated with a fireproof and waterproof coating according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the waterproof and fireproof coating according to the above preferred embodiment of the present invention after burning in a flame;

FIG. 3 is a temperature profile of an actual test of the present invention, which is a thermal insulation test performed by a flame spray gun method using an aluminum plate coated with a waterproof and fireproof coating and an aluminum plate not coated with a waterproof and fireproof coating.

Wherein the content of the first and second substances,

100-plate-shaped building materials;

200-coating; 201-a foamed zone.

Detailed Description

Other features and advantages of the present invention will be further illustrated by the following examples, which are intended to be illustrative only and not limiting.

The invention provides a water-based environment-friendly nontoxic waterproof and fireproof coating, which is prepared from polymer resin and fireproof additive powder in a proportion of 30: 60, wherein the fireproof additive powder mainly comprises 1 part by weight of graphene, 2.5-4 parts by weight of a carbon layer forming agent, 4-5 parts by weight of a carbon layer catalyst and 1.5-2 parts by weight of a foaming agent.

the graphene is nano graphene powder formed by a nano means, the graphene is composed of carbon atoms and is in a shape like a plane film of a hexagonal honeycomb lattice, and the stone-milled graphene has the characteristic of expansion, so that a waterproof and fireproof coating can form a compact foaming area when meeting a fire source and isolate a substrate from contacting with the fire source so as to reduce the continuation and expansion of the fire source, and the graphene is formed into the nano graphene powder by the nano means, so that the nano graphene powder can form effective bonding with high-molecular emulsion resin after being mixed with the high-molecular emulsion resin, the interface strength is improved, the graphene has the effects of wear resistance and water resistance, the pH value of the graphene is 6.5-8.0, the graphene cannot deteriorate after being mixed with the high-molecular emulsion resin, the rust of a coated steel structure can be avoided, the particle size of the graphene is about 80-250 meshes, preferably 120-200 meshes, the spraying is facilitated, the nozzle cannot be blocked, and the effects of smooth and attractive surface and easiness in spraying can be achieved.

The carbon layer forming agent adopted by the invention can be pentaerythritol, diisopentaerythritol, polyisoprene tetrol, glycerol, trimethylolmethane, trimethylolpropane, ethylene glycol, propylene glycol, cyclohexanediol or other equivalent polyols, or at least one of sorbitol, glucose, galactose, fructose, arabinose, sucrose, starch, dextrin, pectin, tartaric acid or other equivalent polysaccharides, and the weight of the carbon layer forming agent is larger than 1/3 of the carbon layer catalyst, preferably larger than 1/2 of the carbon layer catalyst, so as to form a thick carbon shell layer.

The carbon layer catalyst of the present invention may be at least one of red phosphorus, melamine pyrophosphate, guanidine urea phosphate, orthophosphoric acid, tripolyphosphoric acid, metaphosphoric acid, polyphosphoric acid, phosphorous acid, hexametaphosphoric acid, ammonium polyphosphate, ammonium dihydrogen phosphate, ammonium hydrogen phosphate, ammonium metaphosphate, ammonium phosphite, ammonium pyrophosphate, ammonium hexametaphosphate, phosphorus chloride, phosphorus oxychloride, phosphoric anhydride, or other equivalent phosphorus-containing compounds.

The foaming agent of the present invention is selected from at least one of urea, melamine, or nitrogen-containing compounds such as organic amine, or chlorinated wax, and the weight of the foaming agent is not more than that of the carbon layer forming agent, preferably 50% to 80% of the carbon layer forming agent, so as to form a high-strength foamed region having high heat resistance and no cracks.

The method of use of the present invention is described below:

Referring to fig. 1, when the waterproof and fireproof paint is uniformly coated on the surface of the plate-shaped building material 100 in the building to a certain thickness, the waterproof and fireproof paint is hardened to form a coating 200 on the surface of the plate-shaped building material 100, the plate-shaped building material 100 may be made of metal or wood, in this embodiment, the plate-shaped building material 100 is made of wood, as shown in fig. 2, when the coating 200 contacts with flame, the surface of the coating 200 gradually expands due to heating to form a foaming region 201, and the part contacting with the flame is black, but will not spread laterally, i.e., the foaming region 201 will not expand and further block the flame from spreading to the plate-shaped building material 100 inside the coating 200, so as to effectively block the flame spreading and burning effects, and in addition, the burnt coating 200 expands due to the flame, and the foaming region 201 can be scraped off, and then the waterproof and fireproof paint again, i.e. the same fire protection effect can be restored.

The practical test of the present invention is that the fireproof paint of the present invention is coated on an aluminum plate, the coating thickness of the fireproof paint is about 1 cm, after the fireproof paint is dried and hardened in the shade, the aluminum plate which is not coated with the fireproof paint and the aluminum plate coated with the fireproof paint are heated by a flame spray gun in the same way to test the heat insulation effect, please refer to fig. 3, which shows the temperature curve obtained after the test, wherein the front surface temperature of the two aluminum plates is about 1200 ℃, the back surface temperature of the aluminum plate which is not coated with the fireproof paint is about 800 ℃, and the back surface temperature of the aluminum plate coated with the fireproof paint is only about 70 ℃, which is far lower than the back surface temperature of the aluminum plate which is not coated with the fireproof paint, so the data obtained by the practical test shows that the waterproof fireproof paint provided by the present invention really has excellent fireproof effect.

in summary, the present invention is described only in the embodiments or examples of the technical means for solving the problems, and is not intended to limit the scope of the invention. The scope of the invention is to be determined by the following claims and their equivalents.