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Nano composite thermal-insulation paint and preparation method thereof

A thermal insulation coating and nano-composite technology, applied in the field of coatings, can solve problems such as poor high temperature resistance, coating peeling, and restricted application, and achieve the effect of reducing efficiency and improving dispersibility

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 nanocomposite thermal insulation coating restricts its application in the field of building energy saving

Method used

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  • Nano composite thermal-insulation paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0023] Add the zirconia fibers to dimethyl sulfoxide for ultrasonic dispersion to obtain a dispersion, then raise the temperature to 75°C, then add the silane coupling agent A-171 and silicon nitride, react for 12 hours, and then dry after the reaction. The mass ratio of zirconia fiber to silicon nitride is 3:1, and the mass ratio of zirconia fiber to silane coupling agent A-171 is 24:1.

Embodiment 2

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

[0026] Add the zirconia fiber to dimethyl sulfoxide for ultrasonic dispersion to obtain a dispersion liquid, then raise the temperature to 85°C, then add the silane coupling agent KH560 and silicon nitride, react for 6 hours, and then dry it after the reaction. The mass ratio of zirconia fiber to silicon nitride is 6:1, and the mass ratio of zirconia fiber to silane coupling agent KH560 is 18:1.

Embodiment 3

[0028] A nanocomposite thermal insulation coating, calculated in parts by weight, comprising the following components:

[0029] 30 parts of silicone resin emulsion, 8 parts of water-based fluorocarbon emulsion, 7 parts of nano-yttrium oxide, 12 parts of silica airgel, 8 parts of modified zirconia fiber of Example 1, 15 parts of nano-perlite, acrylate ammonium salt dispersant 2 parts, 2 parts of hydroxyethyl cellulose, 0.6 parts of polydimethylsiloxane solution and 20 parts of water.

[0030] Preparation method of nanocomposite thermal insulation coating:

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

[0032] 2) add silica airgel, the modified zirconia 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 resin emulsion, aqueous fluorocarbon emul...

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Abstract

The invention discloses nano composite thermal-insulation paint and a preparation method thereof. The nano composite thermal-insulation paint is prepared from the following components in parts by weight: 20-40 parts of silicon resin emulsion, 6-12 parts of water-based fluorocarbon emulsion, 5-10 parts of nano yttrium oxide, 8-16 parts of silicon dioxide aerogel, 5-10 parts of modified zirconium oxide 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 zirconium oxide fibers are mainly prepared by modifying zirconium oxide fibers and silicon nitride. 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 nanocomposite thermal insulation coating and a preparation method thereof. Background technique [0002] In the production of petrochemical, textile printing and dyeing, metallurgical industry and other fields, heat flow transmission pipes, kilns, high-temperature valves, components and other equipment are used. These pipeline equipment have high temperature and need to be insulated to reduce heat loss. , while preventing the operator from being scalded. At present, there are two commonly used heat preservation measures. One is to use rock wool to wrap and add iron sheets. With the increase of time, the rock wool will gradually sink due to gravity, and it will be separated from the parts that need heat preservation. Insulation effect. At the same time, the heat preservation method of rock wool and iron sheet has a high thermal conductivity, generally above 0.1W / (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/33C09D7/61C09D7/62C09D7/65
CPCC08K2003/221C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09D5/004C09D7/61C09D7/62C09D7/65C09D7/67C09D7/70C09D183/04C08L27/12C08L33/02C08L1/284C08L83/04C08K13/06C08K9/00C08K9/06C08K3/34C08K7/08C08K3/22C08K3/36C08L91/00
Inventor 戴超锋
Owner 安徽诺辰新型材料有限公司
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