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Aerogel waterproof and heat-insulating coating as well as preparation method thereof

A technology for thermal insulation coatings and aerogels, applied in fire-resistant coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor adhesion, structural damage, instability, etc., to reduce heat loss, improve The effect of fire resistance and heat insulation improvement

Active Publication Date: 2018-12-14
河南爱彼爱和新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention patent titled "Aerogel Water-Based Thermal Insulation and Fireproof Coating and Its Preparation Method" uses a surfactant to modify the airgel first to be hydrophobic and then hydrophilic. The surfactant and the aerogel form a non-chemical bond. Combination, the binding force is poor, the surfactant is attached to the surface of the airgel with two layers, the structure is easily destroyed, and it is extremely unstable

Method used

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  • Aerogel waterproof and heat-insulating coating as well as preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0041] An airgel fireproof and heat-insulating coating, comprising the following raw materials in parts by weight: water-based polyurethane emulsion 20, water-based epoxy resin emulsion 15, graphene airgel 25, 2-hydroxybenzophenone derivatives 2. Piperidine derivatives 2, sodium hexametaphosphate 3, ethylene glycol 3, ammonium borate 4, amino resin 5, zirconia ceramic powder 18, hydroxyethyl cellulose 4, tributyl phosphate 2.5, sodium benzoate 2 , Silicone series leveling agent 4, titanium dioxide 2, silicone defoamer 2.5, deionized water 30.

[0042] The preparation method of the airgel fireproof and heat-insulating coating of the present embodiment comprises the following steps:

[0043] (1) Preparation of modified airgel slurry:

[0044] a. Under the condition of heating temperature of 200-500℃, heat the airgel powder for 30min-2h to carry out surface hydrophilic modification, and modify the surface of the airgel powder without destroying its three-dimensional network stru...

Embodiment 2

[0051] An airgel fire-proof and heat-insulating coating, comprising the following raw materials in parts by weight: water-based polyurethane emulsion 40, LiO airgel 24, 2-hydroxybenzophenones 3, fatty alcohol polyoxyethylene ether 2, Glycerol 2, pentaerythritol 2, ammonium phosphate 7, silicon oxide ceramic powder 12, sodium carboxymethyl cellulose 2, aluminum hydroxide 0.5, expanded graphite 0.5, sodium benzoate 1.5, acrylate leveling agent 0.5, fluorine modification Leveling agent 0.5, titanium dioxide 2, zinc oxide 2, silicone defoamer 3, deionized water 20.

[0052] The preparation method of the airgel fireproof and heat-insulating coating of the present embodiment comprises the following steps:

[0053] (1) Preparation of modified airgel slurry:

[0054] a. Under the condition of heating temperature of 200-500℃, heat the airgel powder for 30min-2h to carry out surface hydrophilic modification, and modify the surface of the airgel powder without destroying its three-dimen...

Embodiment 3

[0057] An airgel fire-proof and heat-insulating coating, comprising the following raw materials in parts by weight: water-based epoxy resin emulsion 45, TiO 2 Airgel powder 15, imidazolidinone derivatives 1, fatty alcohol polyoxyethylene ether 1.5, ethylene glycol 2, ammonium borate 6, zirconia ceramic powder 14, lithium-based bentonite 1.5, expanded graphite 3, sodium citrate 3.5 , acrylate leveling agent 3, zinc oxide 1.5, silicone defoamer 1, deionized water 40.

[0058] The preparation method of the airgel fireproof and heat-insulating coating of the present embodiment comprises the following steps:

[0059] (1) Preparation of modified airgel slurry:

[0060] a. Under the condition of heating temperature of 200-500℃, heat the airgel powder for 30min-2h to carry out surface hydrophilic modification, and modify the surface of the airgel powder without destroying its three-dimensional network structure. Hydrophilic to obtain airgel powder with surface hydrophilic modificati...

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Abstract

The invention discloses an aerogel waterproof and heat-insulating coating as well as a preparation method thereof. The coating with fireproof and heat-insulating properties is prepared by adding aerogel powder and ceramic powder which are subjected to hydrophilic modification as well as adding aids and fillers according to different formula proportions, and the coating is prepared by utilizing theproperty characteristic of a three-dimensional network structure of the aerogel, so that the defect that the existing coating is only fireproof and is not heat-insulating is solved and the coating has the heat-insulating characteristic. Meanwhile, nanometer ceramic powder is added in the coating, the nanometer ceramic powder in the coating is heated to be ceramic, one expanded ceramic film is formed on the surface of a base material, one air layer is arranged between the film and the base material, contact between flame and the surface of a vehicle metal material product is isolated, and heatis prevented from being transmitted to the surface of the metal by depending on the low heat-conducting coefficient characteristic of the aerogel in the coating. Through fireproof and heat-insulatingsynergistic effect, good barrier effect on heat and flame is guaranteed to be achieved no matter normal use of the metal part in the vehicle or occurrence of extreme fire accidents, and the fireproofproperty of the coating is enhanced.

Description

technical field [0001] The invention belongs to the field of vehicle fireproof and heat insulation, and in particular relates to an airgel fireproof and heat insulation coating and a preparation method thereof. Background technique [0002] With the continuous advancement of science and technology, the development of my country's railway and highway construction is growing day by day, and people's requirements for material life are increasing day by day. High-speed, comfortable modern air-conditioned passenger / train will become the direction and mainstream of road / railway passenger car development. The safety and comfort of the environment will become the important indicators pursued by the bus design. [0003] In the vehicle structure, metal parts such as the skin, roof and keel are non-combustible materials, but because they are metal materials, the thermal conductivity is very high. In winter, these metal parts will form thermal bridges, which will accelerate the heat loss...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D163/00C09D133/04C09D5/18C09D7/61C09D7/63C09D7/65
CPCC08K2003/2227C08K2003/2241C08K2003/322C08K2201/014C08L2201/02C08L2205/035C09D5/185C09D7/61C09D7/63C09D7/65C09D133/04C09D163/00C09D175/04C08L63/00C08L1/284C08L61/20C08K13/06C08K7/24C08K3/32C08K5/053C08K5/521C08L71/02C08L1/286C08K3/22C08K7/26C08K3/346
Inventor 张光明晁华鑫张爽杨浩侯志国罗肖宁
Owner 河南爱彼爱和新材料有限公司
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