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High-temperature-resisting heat-insulation coating as well as preparation method and application thereof

A heat-insulating paint and high-temperature-resistant technology, applied in the direction of reflection/signal paint, coating, etc., can solve the problems of low combustion efficiency, low heat reflectivity, high thermal conductivity, and achieve the effect of convenient construction and use

Active Publication Date: 2014-04-16
武汉双虎涂料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, refractory materials are mainly used in high-temperature fields such as industrial kilns, high-temperature smelting furnaces, and sintering furnaces, but their low heat reflectivity and high thermal conductivity lead to low combustion efficiency and serious energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Weigh SiO 2 Coated SiC core-shell structure high reflection pigment powder 10Kg (SiC particle size is 2μm, SiO 2 core-shell thickness is 300nm), ZrO 2 Coated diatomite core-shell structure insulation powder 40Kg (diatomite particle size is 3μm, ZrO 2 core-shell thickness is 300nm), ZrO 2 2Kg of toughening fibers (100 μm in length and 1 μm in diameter) were respectively added into the container and stirred evenly to obtain a functional pigment mixture.

[0057] Weigh 10Kg of water glass binder, pour it into a stirring container, add 35Kg of water, stir evenly, then add 2Kg of sodium hexametaphosphate, 100g of mineral oil, 500g of benzyl alcohol, 200g of hydroxymethyl cellulose and 200g of Sodium-based bentonite, stirred evenly to obtain a liquid phase mixture. Fully mix the above-mentioned functional pigment mixture with the liquid phase mixture, disperse for 2 hours under a stirring disperser at a speed of 4500r / min, and then enter a vertical sand mill with a ball-t...

Embodiment 2

[0060] Weigh Al 2 o 3 coated TiO 2 Core-shell structure high reflection pigment powder 20Kg (TiO2 Particle size is 1μm, Al 2 o 3 core-shell thickness is 200nm), SiO 2 Coated perlite powder core-shell structure insulation powder 30Kg (perlite powder particle size is 3μm, SiO 2 core-shell thickness is 300nm), Al 2 o 3 5Kg of toughening fibers (500 μm in length and 1 μm in diameter) were respectively added into the container and stirred evenly to obtain a functional pigment mixture.

[0061] Weigh 20Kg of aluminum dihydrogen phosphate binder, pour it into a stirring container, add 20Kg of water, stir evenly, then add 4Kg of sodium dodecylbenzenesulfonate, 300g of organic silicon, 100g of dodecyl alcohol ester, 100g of polydimethylsilane and 500g of calcium-based bentonite were stirred evenly to obtain a liquid phase mixture. Fully mix the above-mentioned functional pigment mixture with the liquid phase mixture, disperse for 2 hours under a stirring disperser at a speed of...

Embodiment 3

[0064] Weigh ZrO 2 Coated ATO core-shell structure high reflection pigment powder 30Kg (ATO particle size is 500nm, ZrO 2 core-shell thickness is 100nm), Al 2 o 3 Coated expanded vermiculite core-shell structure insulation powder 20Kg (expanded vermiculite particle size is 2μm, Al 2 o 3 Core-shell thickness is 200nm), aluminum silicate toughened fiber 1Kg (length is 200μm, diameter is 1μm), respectively added to the container and stirred evenly to obtain the functional pigment mixture.

[0065] Weigh 30Kg of the mixed binder of aluminum dihydrogen phosphate and silica sol, pour it into a stirring container, add 15Kg of water, stir evenly, then add 2Kg of sodium polyacrylate, 1Kg of modified paraffin, 500g of propylene glycol phenyl ether, 500g Polymethylphenylsiloxane and 1Kg of lithium bentonite were stirred evenly to obtain a liquid phase mixture. Fully mix the above-mentioned functional pigment mixture with the liquid phase mixture, disperse for 2 hours under a stirrin...

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Abstract

The invention relates to the field of functional coatings and particularly relates to a high-temperature-resisting heat-insulation coating and a preparation method thereof. The high-temperature-resisting heat-insulation coating is composed of the following raw materials in percentage by mass: 10%-40% of high-reflection paint with a shell-core structure, 10%-40% of heat-insulation powder with the shell-core structure, 1%-5% of a toughening agent, 10%-50% of a high-temperature bonding agent, 1%-10% of a coating auxiliary agent, and the balance of water. The preparation method comprises the following steps: mixing, dispersing and grinding raw materials; carrying out homogenization to enable an average grain diameter to be 325-400 meshes; and filtering and packaging to obtain a finished product. The high-temperature-resisting heat-insulation coating can be applied to high-temperature fields of industrial furnaces, industrial boilers, high-temperature steam pipelines, petroleum cracking equipment, engine parts, high-temperature smelting, sintering furnaces and the like, and can be used under a higher temperature for long time; the energy consumption can be saved and the service life of the furnaces is prolonged.

Description

technical field [0001] The invention belongs to the field of functional coatings, in particular to a high-temperature-resistant heat-insulating coating and a preparation method thereof. The coating can be used in high-temperature fields such as industrial kilns, industrial boilers, high-temperature steam pipes, petroleum cracking equipment, engine parts, high-temperature smelting, and sintering furnaces to save energy and reduce consumption. Background technique [0002] Under the situation of tightening global energy supply, saving energy and reducing consumption has become the common goal of all countries in the world. To reduce industrial energy consumption, the main purpose is to increase the energy-saving rate of high-temperature equipment, such as: industrial kilns, industrial boilers, high-temperature steam pipelines, petroleum cracking equipment, engine parts, high-temperature smelting, sintering furnaces and other equipment. [0003] There are a large number of ind...

Claims

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Application Information

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IPC IPC(8): C09D5/33C09D7/12
Inventor 戴雷冯俊王亚文
Owner 武汉双虎涂料股份有限公司
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