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High performance reflective heat insulation cooling paint

A heat insulation and cooling, high-performance technology, applied in the direction of reflection/signal coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of single function and low reflectivity, and achieve simple production process, strong weather resistance, excellent anti-corrosion The effect of UV properties

Active Publication Date: 2019-01-11
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the existing heat-insulating and cooling coatings, such as low reflectivity, single function, and cooling range not exceeding 20°C, and provide a high-performance reflective heat-insulating and cooling coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Preparation method

[0027] (1) Preparation of bisphenol A epoxy resin

[0028] Install a stirrer, a return condenser and a thermometer on a 500 mL three-necked flask, add 11.4 g of bisphenol A, 46.5 g of epichlorohydrin, and 4.1 g of NaOH, mix and stir, slowly heat to 80°C, and stop the reaction after 3 hours of reaction. The product is light yellow; filter the reaction solution to remove the by-product NaCl, distill off excess epichlorohydrin (recovery) under reduced pressure (60-70°C), stop the distillation, pour the residue into a small beaker while it is hot, and get Pale yellow, transparent, viscous bisphenol A type epoxy resin.

[0029] (2) Preparation of polysilane-modified bisphenol A epoxy resin

[0030] The bisphenol A epoxy resin prepared by the silane coupling agent KH-550 was mixed according to the volume ratio of 1:12, and stirred at 1000 rpm for 2 h to obtain the polysilane-modified bisphenol A epoxy resin.

[0031] (3) Preparation of reflective he...

Embodiment 2

[0034] 1. Preparation method

[0035] (1) Preparation of bisphenol A epoxy resin

[0036] Install a stirrer, a return condenser and a thermometer on a 500 mL three-necked flask, add 12.4 g of bisphenol A, 48.5 g of epichlorohydrin, and 4.2 g of NaOH, mix and stir, slowly heat to 80°C, and finish the reaction after 3 hours of reaction, the product Light yellow; filter the reaction solution to remove the by-product NaCl, distill off excess epichlorohydrin (recovery) under reduced pressure (60-70°C), stop distillation, pour the residue into a small beaker while it is hot, and obtain light Yellow, transparent, viscous bisphenol A type epoxy resin.

[0037] (2) Preparation of polysilane-modified bisphenol A epoxy resin

[0038] The bisphenol A type epoxy resin prepared by the silane coupling agent KH-550 was mixed according to the volume ratio of 1:10 and stirred at 1000 rpm for 1 h to obtain the polysilane modified bisphenol A type epoxy resin.

[0039] (3) Preparation of refle...

Embodiment 3

[0042] 1. Preparation method

[0043] (1) Preparation of bisphenol A epoxy resin

[0044] Install a stirrer, return condenser tube and thermometer on the 500 mL three-neck flask. Add 10.4 g of bisphenol A, 42.5 g of epichlorohydrin, and 3.8 g of NaOH, mix and stir, slowly heat to 80°C, and finish the reaction after 3 hours of reaction. The product is light yellow. Filter the reaction solution to remove the by-product NaCl, distill off excess epichlorohydrin (recovery) under reduced pressure (60-70°C), stop the distillation, pour the residue into a small beaker while it is hot, and obtain a light yellow, transparent, Viscous bisphenol A type epoxy resin.

[0045] (2) Preparation of polysilane-modified bisphenol A epoxy resin

[0046] The bisphenol A epoxy resin prepared by the silane coupling agent KH-550 was mixed according to the volume ratio of 1:15, and stirred at 1500 rpm for 2 h to obtain the polysilane-modified bisphenol A epoxy resin.

[0047] (3) Preparation of refle...

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PUM

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Abstract

The invention discloses high performance reflective heat insulation and cooling paint. The high performance reflective heat insulation and cooling paint is characterized by comprising a component A and a curing agent, wherein the mass ratio of the component A to the curing agent is 7-10:1; the component A is composed of the following component according to the mass parts: 30 to 60 parts of dispersion liquid, 1 to 5 parts of carbon nanotubes, 2 to 10 parts of aluminum-doped zinc oxide, and 0.1 to 1 part of auxiliary agent; and the dispersion liquid is composed of hollow glass microbeads, silverpowder, ceramic fibers and polysilane-modified bisphenol A epoxy resin, the mass ratio of which is 2-4: 1: 1: 10-15. The paint can highly reflect the infrared rays and ultraviolet rays of the sun inthe range of 400nm to 2500nm through the combination of a heat reflecting material, the hollow glass microbeads, nanoparticles and heat insulating resin, can not only prevent the heat of the sun fromaccumulatively rising on the surface of an object, can also automatically carry out heat radiation cooling, radiates the heat on the surface of the object into the space, and reduces the temperature of the object; the reflectivity of the paint exceeds 90%; and the maximum temperature reduction can reach 40 degrees.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings. Specifically, it relates to a high-performance reflective thermal insulation and cooling paint. Background technique [0002] As a means of heat insulation, thermal insulation coatings have great social and economic significance for industry and civil use. The heat insulation mechanism of the reflective heat-insulating and cooling coating is to reflect part of the visible light and near-infrared light in the sun to the external space through the reflection of the coating film, so that most of the energy of the sun shining on the coating film is reflected instead of being absorbed by the coating film. absorb. The thermal insulation performance of coatings is only related to the reflectivity of the coating film surface, but has nothing to do with the coating film thickness. Initially, heat-reflective coatings are reflective energy-saving coatings, also known as solar-reflective coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/33C09D5/10C09D7/61
CPCC08K2003/0806C08L2201/08C09D5/004C09D5/10C09D163/00C09D7/61C09D7/70C08K13/04C08K7/20C08K3/08C08K7/04C08K3/041
Inventor 李伟华刘睿曹文凯曾晖陈昊翔杜建伟
Owner SUN YAT SEN UNIV