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Preparation method of fluorocarbon coating

A fluorocarbon coating and fluorocarbon resin technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problem of easy delamination and falling, weak sand resistance of coated backsheets, reduced service life of solar cells and other problems. Power generation efficiency and other issues, to achieve the effect of expanding the scope of application and excellent aging resistance

Active Publication Date: 2014-12-10
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in comparison, the wind and sand resistance of the coated backboard is relatively weak, and the wear resistance is less than 30% of that of the TPT backboard. The outer coating of the board is easily delaminated by wind and sand, which weakens the protection of the backsheet to the components and reduces the service life and power generation efficiency of the solar cells.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A fluorocarbon coating consisting of two components, A and B.

[0043]Preparation of component A: 1000 g (5.18molOH group) aromatic polyester polyol 121E (Japan Polyurethane Industry Co., Ltd.), 3330g (15.54molNCO group) hexamethylene diisocyanate trimer curing agent HT-90BS (Wanhua Chemical Group Co., Ltd.), 3330g of anhydrous butyl acetate (Zhejiang Chemical Industry Co., Ltd.) were added to the reactor in sequence, and the temperature was raised slowly while stirring. When the temperature rose to 80°C, 7.6g of monobutyl triisooctanoic acid Tin catalyst (Jintian Raw Materials Co., Ltd.), reacted for 2.5 hours; then added 37744g (40.44molOH group) fluorocarbon resin SW-5570 (Shanghai Shengwei Trading Co., Ltd.) to the reaction system, mixed evenly and continued to react for 2.5 hours; The reaction mixture was poured into a high-speed mixer while it was hot, and after being cooled slowly to room temperature, 4542g of nano-silica A380 (Germany Degussa), 1365g of monomeri...

Embodiment 2

[0047] A fluorocarbon coating consisting of two components, A and B.

[0048] Preparation of component A: 1000 g (2.36molOH group) aromatic polyester polyol AK3080 (Foshan Tongde Chemical Co., Ltd.), 3332g (9.44molNCO group) isophorone diisocyanate trimer Z4470BA (German Bayer ), 3332g of anhydrous ethyl acetate (Zhejiang Chemical Industry Co., Ltd.) were added to the reactor in turn, and the temperature was slowly raised while stirring. When the temperature rose to 75°C, 7.6g of monobutyltin oxide (Taixing Shengling Co., Ltd.) was added. Hour; Add 19824g (21.24molOH groups) fluorocarbon resin GK570 (Dakin in Japan) to the reaction system again, mix uniformly and continue to react after 3 hours; Pour the reaction mixture into a high-speed mixer while it is hot, and after slowly cooling to room temperature, Weigh 4124g of nano-alumina TBD-L30 (Wuxi Tuoboda Titanium Dioxide Products Co., Ltd.), 1376g of monomeric carbodiimide hydrolysis stabilizer I powder (Rhein Chemie), 550g o...

Embodiment 3

[0052] A fluorocarbon coating consisting of two components, A and B.

[0053] Preparation of component A: 1000 g (2.19molOH group) polycarbonate polyol PC-61 (Japan Polyurethane Industry Co., Ltd.), 1483g (7.66molNCO group) hexamethylene diisocyanate trimer curing agent TKA100 ( Asahi Kasei Chemical Co., Ltd.), 1483g of anhydrous n-butyl ketone (Zhejiang Chemical Industry Co., Ltd.) were successively added into the reactor, and the temperature was slowly raised while stirring. City Shengling Co., Ltd.), reacted for 2 hours; then added 15094g (17.52molOH group) fluorocarbon resin L101 (Wanbo Paint Chemical Co., Ltd.) to the reaction system, mixed evenly and continued to react for 3 hours; pour the reaction mixture while hot Put it into a high-speed mixer, slowly cool to room temperature, weigh 1144g nano-carbon black JY-101P (Hangzhou Junyi New Material Co., Ltd.), 1716g nano-titanium dioxide TR81 (U.S. Huntsman), 763g polycarbodiimide hydrolytically stable Agent P200 (Rhein C...

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Abstract

The invention discloses a preparation method of a fluorocarbon coating. The fluorocarbon coating is composed of a component A and a component B. When in use, the component A and component B are mixed in a mass ratio of (1-2):1. The component A is composed of fluorocarbon polyurethane prepolymer, a nano inorganic filler, a hydrolysis stabilizer, a dispersing agent, a leveling agent, a tin catalyst, an initiator, hydroxy acrylate and an anhydrous diluter; and the component B is composed of a hydroxy acrylic resin, an isocyanate curing agent and an anhydrous diluter. The method can effectively enhance the crosslinking density of the polymers in the fluorocarbon coating, so that the fluorocarbon coating has more compact IPN (interpenetrating network) structure. The prepared fluorocarbon coating has the advantages of excellent weather resistance, excellent water resistance, excellent chemical resistance, excellent salt spray resistance, outstanding hardness and outstanding abrasion resistance, and is a high-performance fluorocarbon coating applicable to solar cell back panels.

Description

technical field [0001] The invention relates to a preparation method of a fluorocarbon coating, belonging to the technical field of material surface protection. Background technique [0002] As an important part of renewable energy, the photovoltaic industry has become the main method to solve the global energy crisis. Since 2008, the application of solar cells has continued to expand, from aviation and ground power stations to roofs and curtain walls, from temperate and tropical regions to alpine and desert regions, and has gradually become a part of people's lives. The rising demand for solar cells has also determined the popularization and localization of solar cell materials. The main materials used in solar cell modules include crystalline silicon wafers, silver paste, tempered glass, EVA film, junction box, and backplane. Among my country's own brands, the production technology and product quality of the first five materials have reached the international leading lev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/06C09D7/12C08G18/67C08G18/62C08G18/42C08G18/10
Inventor 林维红李景菲周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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