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High-temperature-resistant high-reflectivity coating component and preparation method thereof, and coating and construction method thereof

A high-reflectivity, paint-component technology, used in reflective/signal paints, coatings, buildings, etc., to solve problems such as blistering, inability to reflect infrared light, and reduced reflectivity

Active Publication Date: 2022-04-15
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing high-reflectivity coatings are applied to the surfaces of buildings, textiles, etc., and resins with poor heat resistance such as acrylic resins, epoxy resins, and polyurethane resins are mainly used as film-forming materials. The typical feature is poor heat resistance.
If it is applied to reflective heat insulation on high-temperature surfaces, on the one hand, the coating will crack, fall off, and foam at high temperatures; Reduced, can not play a good role in infrared light reflection, so it can not be applied to high temperature reflection and heat insulation

Method used

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  • High-temperature-resistant high-reflectivity coating component and preparation method thereof, and coating and construction method thereof
  • High-temperature-resistant high-reflectivity coating component and preparation method thereof, and coating and construction method thereof
  • High-temperature-resistant high-reflectivity coating component and preparation method thereof, and coating and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The high-temperature-resistant high-reflectivity coating consists of components A and B, in parts by weight, wherein 1) the formula of component A is: epoxy-modified polysiloxane resin (viscosity 120cp, epoxy equivalent 130, 20 parts) , phenyl polysiloxane resin (30% phenyl content, 80 parts), high reflectivity coating powder (35 parts), ultra-fine AZO (particle size 20nm, 5 parts), nano fumed silica (particle size 7nm, 15 parts), barite powder (particle size 10μm, 10 parts), ultrafine flaky brass powder (particle size 10μm, 15 parts), raybo 41 (2 parts), xylene 10 parts, butyl acetate 10 2) Component B is polysilazane (5 parts) with a number average molecular weight of 1000.

[0082] The preparation process of the above-mentioned high-reflectivity coating powder is as follows: 1) Pour 200g of mica powder (1200 mesh) into 2000g of 0.08mol / L nitric acid aqueous solution for ultrasonic activation for 0.5h, add sodium carbonate to adjust the pH of the solution to 6.5, and ...

Embodiment 2

[0090] The high-temperature-resistant high-reflectivity coating is composed of components A and B, in parts by weight, wherein 1) the formula of component A is: epoxy-modified polysiloxane resin (viscosity 120cp, epoxy equivalent 150, 20 parts) , phenyl polysiloxane resin (30% phenyl content, 80 parts), high reflectivity coating powder (35 parts), ultra-fine AZO (particle size 30nm, 8 parts), nano fumed silica (particle size 14nm, 20 parts), barite powder (particle size 10μm, 15 parts), ultrafine flaky brass powder (particle size 5μm, 15 parts), raybo 41 (3 parts), xylene 10 parts, butyl acetate 12 2) Component B is polysilazane (10 parts) with a molecular weight of 5000.

[0091] The preparation process of the above-mentioned high-reflectivity coating powder is as follows: 1) Pour 200g of mica powder (1200 mesh) into 2000g of 0.08mol / L nitric acid aqueous solution for ultrasonic activation for 0.5h, add sodium carbonate to adjust the pH of the solution to 6.5, and filter for ...

Embodiment 3

[0098] The high-temperature-resistant high-reflectivity coating is composed of components A and B, in parts by weight, wherein 1) the formula of component A is: epoxy-modified polysiloxane resin (viscosity 120cp, epoxy equivalent 120, 40 parts) , phenyl polysiloxane resin (35% phenyl content, 60 parts), high reflectivity coating powder (40 parts), nano fumed silica (particle size 14nm, 20 parts), barite powder (particle size 15μm, 20 parts), superfine flaky brass powder (particle size 5μm, 25 parts), BYK8461 (3 parts), xylene 10 parts, butyl acetate 14 parts; 2) B component is the molecular weight of 1000 Polysilazane (20 parts). The preparation process of the above-mentioned high-reflectivity coating powder is the same as that of Example 1.

[0099] The preparation process of component A of the high-temperature-resistant high-reflectance coating is the same as that in Example 1.

[0100] The construction technology of the high-temperature-resistant high-reflectivity coating...

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Abstract

The invention discloses a high-temperature-resistant high-reflectivity coating component, a preparation method thereof, a coating and a construction method, and the high-temperature-resistant high-reflectivity coating component contains modified high-temperature-resistant resin, high-reflectivity coating powder, nano white carbon black, barite powder, brass powder, a wetting dispersant, a diluent and optional aluminum-doped ZnO. The high-reflectivity coating powder comprises a mica powder matrix and a coating, the surface of the mica powder matrix is coated with the coating, and the coating is an Al / ZnO doped layer. The high-temperature-resistant high-reflectivity coating still has relatively high infrared reflectivity after high temperature, is good in apparent state, and can be applied to heat radiation blocking of the outer wall of a high-temperature boiler and heat insulation and cooling of the surface and the internal high-temperature radiation surface of a high-speed aircraft.

Description

technical field [0001] The present invention relates to a high-temperature-resistant high-reflectance paint, and furthermore, relates to a high-temperature-resistant high-reflectance paint component and its preparation method as well as its paint and construction method. Background technique [0002] High-temperature-resistant high-reflectivity coatings are coatings that have both high-temperature resistance and high-reflective properties of infrared light. They can be coated on the surface of substrates to achieve the purpose of heat insulation and cooling by reflecting infrared light. The mechanism of heat transfer can be divided into heat conduction, heat convection and heat radiation. Generally, the higher the temperature, the higher the proportion of thermal radiation heat transfer in the heat transfer process, that is, at high temperature, heat is mainly transferred to the heated object by radiating infrared light. Therefore, it is a very effective heat insulation meth...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D5/33C09D7/61E04F13/02E04F21/08
Inventor 吴连锋王飞王贤明宁亮易敏华王志勇
Owner MARINE CHEM RES INST
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