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Silica aerogel coating and application thereof

A technology of silica and airgel, which is applied in the direction of alkali metal silicate coating, polyurea/polyurethane coating, coating, etc., can solve the problem that the bulletproof and explosion-proof performance has not been strengthened, so as to reduce explosion deformation and improve occupant Safe, easy-to-prepare results

Active Publication Date: 2013-09-04
陕西盟创纳米新型材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now more and more needs such as vehicles, while considering the comfort of the vehicle, are more concerned with its safety performance. The safety performance of the vehicle itself, such as collisions and failures, is currently installed through the installation of airbags and seat belts. And other measures, etc., but the bulletproof and explosion-proof performance of the vehicle itself has not been strengthened, especially in war-torn countries, terrorist attacks occur from time to time, and the occupants have higher and higher requirements for the safety performance of the vehicle's explosion-proof protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Get 10 parts by mass of silica airgel powder (density 60kg / m 3 , thermal conductivity 0.01w / m k, particle size 500nm, produced by Shaanxi Mengchuang Nano New Materials Co., Ltd.), sodium silicate (3.0 modulus): potassium silicate (2.8 modulus) mass ratio is 1:1 100 parts of the solution, 1 part of sodium fluorosilicate, and 121 parts of alcohol ester, mixed and stirred evenly, then ground in a three-roller ball mill for 30 minutes, and filled to obtain the product.

[0024] Take the above-mentioned paint and apply it on a 300×300 5mm steel plate with a coating thickness of 1mm. After each application, cure for 8 hours. Apply three times, each time 1mm. After curing for 8 hours, apply the next layer. Fully cured.

[0025] After the on-site test of the vehicle factory, all the indicators meet the auxiliary functions of heat insulation and explosion protection: the ablation margin of the coating film is 99%, the coating film is resistant to 120 times of washing, and the c...

Embodiment 2

[0027] Take 10 parts of silica airgel powder (density 60kg / m 3 , thermal conductivity 0.01w / m k, particle size 500nm, produced by Shaanxi Mengchuang Nano New Materials Co., Ltd.), 100 parts of 1:2 sodium silicate (3.0 modulus): potassium silicate (2.8 modulus) solution, 1 part of magnesium oxide, 121 parts of alcohol ester, mixed and stirred evenly, then ground in a three-stick ball mill for 30 minutes, and filled to obtain the product.

[0028] Take the above-mentioned paint and apply it on a 300×300 5mm steel plate with a coating thickness of 3mm. Apply three times, 1mm each time. After curing for 8 hours, apply the next layer. After it is completely cured, its related properties are measured: the ablation margin of the coating film is 99%, the coating film is resistant to 80 times of washing, and the coating film density is 230g / m 2 , The thermal conductivity of the coating film is 0.036w / m·k, and the explosion analysis of the coated steel plate with 8kg TNT at a distance ...

Embodiment 3

[0030] Take 20 parts of silica airgel powder (density 60kg / m 3 , thermal conductivity 0.01w / m k, particle size 500nm, produced by Shaanxi Mengchuang Nano New Materials Co., Ltd.), 100 parts of 1:1 sodium silicate (3.0 modulus): potassium silicate (2.8 modulus) solution, 1 part of sodium fluorosilicate, 1 part of propylene glycol phenyl ether, mixed and stirred evenly, then ground in a three-stick ball mill for 30 minutes, and filled to obtain the product.

[0031] Take an appropriate amount of the above-mentioned paint and apply it on a 300×300 5mm steel plate with a coating thickness of 3mm. Apply three times, 1mm each time. After curing for 8 hours, apply the next layer. After it is completely cured, its related properties are measured: the ablation margin of the coating film is 99%, the coating film is resistant to 80 times of washing, and the coating film density is 230g / m 2 , The thermal conductivity of the coating film is 0.030w / m·k, and the explosion analysis of the co...

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Abstract

The invention provides a silica aerogel coating. The silica aerogel coating is composed of 10-30 parts by mass of silica aerogel powder, 100-120 parts by mass of a film forming agent, 1-2 parts by mass of a curing agent, and 1-2 parts by mass of a film forming aid. The invention also provides an application of the silica aerogel coating in the formation of a heat-insulation anti-explosion coat. The silica aerogel coating is simple to prepare and has a low cost. The silica aerogel coating has the characteristics of good bonding with a substrate, effective heat insulation, reduction of the explosion deformation, and protection function through selecting a proper formula, can be used for the heat insulation and the noise reduction of buildings or apparatuses, and can also be used in the external surfaces of vehicles to reduce the vehicle deformation and improve the passenger safety in the emergencies.

Description

technical field [0001] The invention belongs to the field of thin-layer materials, in particular to a thin-layer material containing silicon dioxide powder. Background technique [0002] Airgel is a material obtained by replacing the liquid in the wet gel with gas through a drying method, while the network structure of the gel remains basically unchanged. The structural feature of airgel is a cylindrical multi-branched nanoporous three-dimensional network structure with high permeability, extremely high porosity, extremely low density, high specific surface area, and ultra-high pore volume ratio. -0.500g / cm 3 adjustable within the range. The preparation technology of silica airgel is becoming more and more mature, and the application of silica airgel has always been the key research direction of workers engaged in airgel research. For example, patent CN10137650.1A discloses an airgel anti-reflection coating . Patent CN103011619A proposes its application as a solid phase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/02C09D1/04C09D125/14C09D133/00C09D175/04C09D7/12
Inventor 陈国杨建洲李仲谨张君
Owner 陕西盟创纳米新型材料有限责任公司
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