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Nano thermal-insulation paint and preparation method thereof

A thermal insulation coating and nanotechnology, applied in the field of coatings, can solve the problems of poor high temperature resistance, restriction, coating peeling, etc., and achieve the effect of reducing efficiency

Inactive Publication Date: 2018-12-11
安徽诺辰新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing building thermal insulation coatings only play a role of thermal insulation, but for higher temperatures such as 400 ° C, its own high temperature resistance is poor, and the coating is prone to peeling off.
Therefore, the existing nano thermal insulation coating restricts its application in the field of building energy saving

Method used

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  • Nano thermal-insulation paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of modified aluminum silicate fiber comprises the following steps:

[0023] Add aluminum silicate fibers into water for ultrasonic dispersion to obtain a dispersion, then heat up to 75°C, then add silane coupling agent A-171 and chitosan, react for 12 hours, and then dry after the reaction. The mass ratio of aluminum silicate fiber to chitosan is 3:1, and the mass ratio of aluminum silicate fiber to silane coupling agent A-171 is 24:1.

Embodiment 2

[0025] The preparation method of modified aluminum silicate fiber comprises the following steps:

[0026] Add aluminum silicate fibers into water for ultrasonic dispersion to obtain a dispersion, then heat up to 85°C, then add silane coupling agent KH560 and chitosan, react for 6 hours, and then dry after the reaction. The mass ratio of aluminum silicate fiber to chitosan is 6:1, and the mass ratio of aluminum silicate fiber to silane coupling agent KH560 is 18:1.

Embodiment 3

[0028] A kind of nano thermal insulation coating, calculates according to parts by weight, comprises the following components:

[0029] 26 parts of silicon-acrylic emulsion, 8 parts of water-based fluorocarbon emulsion, 7 parts of nano-zirconia, 12 parts of silica airgel, 8 parts of modified aluminum silicate fiber in Example 1, 9 parts of alumina crystal fiber, nano-pearl 15 parts of rock, 2 parts of ammonium acrylate dispersant, 2 parts of modified ammonium polyacrylate, 0.6 part of polydimethylsiloxane solution and 20 parts of water.

[0030] Preparation method of nano thermal insulation coating:

[0031] 1) Add ammonium acrylate dispersant and 1 / 2 mass polydimethylsiloxane solution into water according to the formula amount, and stir and mix thoroughly at a speed of 500r / min;

[0032] 2) add silica airgel, the modified aluminum silicate fiber of embodiment 1 and nano-perlite to the mixture of step 1) and disperse at a rotating speed of 1600r / min;

[0033] 3) Add silicone...

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Abstract

The invention discloses nano thermal-insulation paint and a preparation method thereof. The nano thermal-insulation paint is prepared from the following components in parts by weight: 16-32 parts of silicone acrylic emulsion, 6-12 parts of water-based fluorocarbon emulsion, 5-10 parts of nano-zirconia, 8-16 parts of silicon dioxide aerogel, 5-10 parts of modified aluminum silicate fibers, 6-12 parts of aluminum oxide crystal fibers, 12-18 parts of nano perlite, 1-3 parts of a wetting dispersing agent, 1-3 parts of a thickening agent, 0.2-1 part of a de-foaming agent and 15-25 parts of water, wherein the modified aluminum silicate fibers are mainly prepared by modifying aluminum silicate fibers and chitosan. The paint is good in heat insulation, is low in heat conduction coefficient, and can be used for indoor heat insulation.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a nano thermal insulation coating and a preparation method thereof. Background technique [0002] Applying nanotechnology and nanomaterials to coatings can use the principle of double vegetables in lotus leaves and nano-effects such as "zero convection" to improve the thermal insulation, water resistance and mildew resistance of coatings. Aluminum silicate is a material with good high temperature resistance and good heat insulation performance, and nano-aluminum silicate has good suspension stability due to its small particle size, narrow particle size distribution, and no precipitation and stratification. Dispersion and fineness indicators, so that the appearance, gloss, hardness and dispersion of the coating have good effects. [0003] Common coatings are prone to thermal degradation and carbonization under high temperature conditions, causing the soil layer to be...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D127/12C09D7/61C09D7/62
CPCC08K2003/2244C08K2201/011C09D7/61C09D7/62C09D7/70C09D143/04C08L27/12C08K13/06C08K9/08C08K7/10C08K3/22C08K3/36C08K7/08C08K3/34
Inventor 戴超锋
Owner 安徽诺辰新型材料有限公司
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