Aerogel composite material with surface subjected to dust-free treatment and preparation method

A composite material and airgel technology, which is applied in the field of airgel composite materials and its preparation, can solve the problems of poor working environment for construction personnel, achieve various proportions, improve firmness and crack resistance, and reduce costs Effect

Inactive Publication Date: 2016-10-12
浙江圣润纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, airgel materials, especially inorganic airgel materials such as silicon aerogel and aluminum aerogel, are easily broken to generate dust due to their brittle surfaces. The harsh working environment of construction personnel also limits the application of airgel in places with high cleanliness requirements such as electronics and medicine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Take 180g of sodium silicate with a modulus of 3.3, 5g of water, 60g of attapulgite clay, 10g of brucite fiber, 55g of titanium oxide, 10g of mica, and 0.5g of wetting agent, mix and stir to obtain a viscous coating paste, The coating paste was coated on the surface of the alumina airgel cylinder with a brush, and dried by microwave for 30 minutes to obtain a rigid dust-free treated airgel material with a thermal conductivity of 0.019w / m·k.

Embodiment 2

[0041] Take 200g of ordinary Portland cement, 65g of water, 60g of silica fume, 16g of basalt fiber, and 1g of thickener, mix and stir to obtain a viscous coating paste, and apply the coating paste to the silicon dioxide air-setting The surface of the rubber sheet was dried naturally for 96 hours, and then dried with hot air at 80°C for 1.5 hours to obtain a rigid and dust-free airgel material with a thermal conductivity of 0.019w / m·k.

Embodiment 3

[0043] Take 120g of water-based epoxy resin, 100g of water, 200g of kaolin, 12g of polyester fiber, 5g of iron oxide red, and 0.5g of defoamer, mix and stir to prepare a viscous coating paste, and apply the coating paste by spraying On the surface of the silica airgel felt, dry it with hot air at 80°C for 2 hours to obtain a flexible and dust-free airgel material with a thermal conductivity of 0.018w / m·k.

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Abstract

The invention relates to an aerogel composite material with a surface subjected to dust-free treatment and a preparation method thereof, in particular to a method using an aerogel felt, an aerogel plate, an aerogel cylinder and an aerogel shaped piece as the base material and coating the substrate surface with compact coating so as to avoid shedding of aerogel surface dust. The method is simple and practicable, can effectively solve the problem of easy generation of dust on the aerogel surface, significantly improves the working environment, and can satisfy the use condition of aerogel in clean space. By adopting different ratios, a rigid coating and a flexible coating can be obtained, high temperature and low temperature application can also be achieved, compound proportioning of an inorganic film-forming agent and an organic film-forming agent also can give consideration to flexibility and fire resistance, and significantly improves the adaptability of the coating paste to different types of aerogel materials. The aerogel subjected to dust-free treatment can be applied to heat preservation of various industrial equipment and pipeline, and also can be applied to thermal insulation of high speed rail, vessels, electronics and pharmaceutical workshops and building field.

Description

technical field [0001] The invention relates to an airgel composite material with dust-free surface treatment and a preparation method thereof, in particular to an airgel felt, an airgel plate, an airgel cylinder and an airgel special-shaped piece as base materials. The surface is coated with a dense coating to prevent dust from falling off the surface of the airgel. The method is simple and easy to implement, can effectively solve the problem of easy generation of dust on the surface of the airgel material, significantly improve the working environment, and can also meet the use conditions of the airgel in a clean space. The dust-free treatment airgel of the present invention can be applied not only to heat preservation of various industrial equipment and pipelines, but also to heat insulation of high-speed railways, ships, electronics and medical workshops, and construction fields. Background technique [0002] Airgel is a new type of nano-insulation material. It was inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B28/04C04B26/14C04B28/02C04B26/32C04B41/50C04B14/10C04B14/38C04B14/20C04B16/06C04B14/22
Inventor 金承黎
Owner 浙江圣润纳米科技有限公司
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