Nano anti-corrosion thermal insulation coating 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, waste of human and financial resources, frequent replacement and recoating operations, etc., and achieve the effect of reducing efficiency

Inactive Publication Date: 2019-01-18
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.
In addition, with the development of chemical, mining and other industries in recent years, the corrosion conditions have become more and more serious. T...

Method used

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  • Nano anti-corrosion thermal insulation coating and preparation method thereof
  • Nano anti-corrosion thermal insulation coating 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 nano anti-corrosion and heat-insulating coating, calculated in parts by weight, includes the following components:

[0029] 40 parts of epoxy resin, 8 parts of toughening resin, 7 parts of nanometer zirconia, 12 parts of silica airgel, 8 parts of modified aluminum silicate fiber of embodiment 1, 1 part of benzimidazole esters, nano 15 parts of perlite, 2 parts of ammonium acrylate dispersant, 2 parts of modified ammonium polyacrylate, 0.6 part of polydimethylsiloxane solution, 4 parts of curing agent and 25 parts of water.

[0030] The preparation method of nano anticorrosion heat 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) Ad...

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Abstract

The invention discloses a nano anti-corrosion thermal insulation coating and a preparation method thereof; the nano anti-corrosion thermal insulation coating comprises the following components in parts by weight: 30 to 50 parts of epoxy resin, 6 to 12 parts of toughened resin, 5 to 10 parts of nano zirconia, 8 to 16 parts of silica aerogel, 5 to 10 parts of modified alumina silicate fibers, 0.5 to1.5 parts of benzomazole esters, 12 to 18 parts of nano perlite, 1 to 3 parts of a wetting dispersant, 1 to 3 parts of a thickener, 0.2 to 1 part of a defoaming agent, 2 to 5 parts of a curing agentand 20 to 30 parts of water; and the modified alumina silicate fibers are mainly prepared from alumina silicate fibers and chitosan by modification. The coating not only is good in thermal insulationeffect, but also is low in thermal conductivity and good in anti-corrosion effect.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a nano anti-corrosion and heat-insulating 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 ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/62C09D7/61C09D7/63
CPCC08K2201/011C08L2205/035C09D5/08C09D7/61C09D7/62C09D7/63C09D7/70C09D163/00C08L101/00C08K13/06C08K9/06C08K9/08C08K7/08C08K7/26C08K5/3447
Inventor 戴超锋
Owner 安徽诺辰新型材料有限公司
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