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A kind of high hydroxyl fluorocarbon copolymer coating and its application

A high-hydroxyl fluorocarbon copolymer and coating technology, applied in polyurea/polyurethane coatings, coatings, instruments, etc., can solve the problems of being easily polluted by dust and other particles, power generation efficiency decline, and the feasibility of convex lenses is not high. Effect of dust prevention, reduction of unevenness, effect of solving self-cleaning problems

Active Publication Date: 2017-07-25
中远关西涂料(上海)有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device relies on a convex lens to concentrate light, but the large convex lens is often easily polluted by dust and other particles when it is exposed to the air for a long time, and the installation location of this device is mostly in a dry place with little water and strong wind and sand, so it is not feasible to use a large amount of water to clean the convex lens. , so wind force is needed to solve this problem
Large particles can fall off with the action of wind and gravity, but small dust tends to easily adhere to the surface of the lens, which greatly reduces the power generation efficiency

Method used

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  • A kind of high hydroxyl fluorocarbon copolymer coating and its application
  • A kind of high hydroxyl fluorocarbon copolymer coating and its application
  • A kind of high hydroxyl fluorocarbon copolymer coating and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of paint: Add 600g of chlorotrifluoroethylene copolymer (hydroxyl value 135 mgKOH / g) to the container, then stir at high speed, maintain the speed of 1500r / min, add 30g diluent methyl ethyl ketone, 90g ethyl acetate, ring After 105g of hexanone, add 9g of defoamer BYK110, 6g of adhesion promoter Z-6040, 26g of leveling agent EFKA3777, ultraviolet absorber UV-912g, 16g of antistatic agent MONENG-6002, and 14g of anti-sagging agent AT723. Finally, 20 g of diluent methyl ethyl ketone, 45 g of ethyl acetate and 50 g of cyclohexanone were added. Add 300g hardener HDI. See Table 1 for specific ingredients.

[0042] (2) Preparation of coating: Use 30cm×15cm glass as the substrate, use water and butyl acetate to clean the surface oil and impurities and dry. Use 517 spray gun nozzle, spray air pressure is 0.2~0.3MPa, when spraying, the nozzle is 25~30cm away from the substrate. The high-hydroxy fluorocarbon coating is sprayed on the substrate by 10μm, and after 3...

Embodiment 2

[0046] (1) Preparation of paint: Add 605g of chlorotrifluoroethylene copolymer (hydroxyl value 136mgKOH / g) to the container and stir at high speed, keep 1500r / min, add 57g of diluent xylene, 70g of butyl acetate, and methyl isobutyl ketone After 80g, add 6g defoamer BYK141 and TEGO substrate wetting agent ® Wet270 8g, adhesion promoter Z-6020 9g, leveling agent EFKA3600 15g, antistatic agent HA-66 7g, finally add diluent xylene 40g, butyl acetate 44g, methyl isobutyl ketone 59g. Add 450g of curing agent IPDI. See Table 1 for specific ingredients.

[0047] (2) Preparation of coating: Use 30cm×15cm glass as the substrate, use water and butyl acetate to clean the surface oil and impurities and dry. Use the nozzle of the 517 spray gun, the spraying air pressure is 0.4~0.5MPa, and the nozzle is 20~25cm away from the substrate during spraying. Spray 10μm of high-hydroxy fluorocarbon hydrophobic dustproof coating on the substrate, and then continue to spray 20-30μm on the substrate ...

Embodiment 3

[0051] (1) Preparation of paint: Add 620g of chlorotrifluoroethylene copolymer (hydroxyl value 145 mgKOH / g) to the container, stir at high speed, keep 1500r / min, add 160g of diluent ethylene glycol ethyl ether acetate, add defoamer separately BYK066N12g, substrate wetting agent TEGO ® WetKL245 16g, adhesion promoter Z-6040 12g, leveling agent BYK310 30g, ultraviolet absorber HTUV120 18g, antistatic agent HDC-308 12g, anti-sagging agent BYK430 10g, and finally add diluent diluent glycol ethyl ether acetic acid 100g of ester. Add curing agent HMDI 200g, HDI 200g. See Table 1 for specific ingredients.

[0052] (2) Preparation of coating: Use 30cm×15cm glass as the substrate, use water and butyl acetate to clean the surface oil and impurities and dry. Use 517 spray gun nozzle, spray air pressure is 0.3~0.4MPa, when spraying, the nozzle is 23~28cm away from the substrate. The high-hydroxy fluorocarbon hydrophobic dust-proof coating is sprayed on the substrate for 10μm, after 50s,...

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Abstract

The invention discloses a high-hydroxyl fluorocarbon copolymer coating and an application thereof. The coating comprises a main agent and a curing agent, wherein the main agent comprises the following components in percentage by mass: 60-62% of a high-hydroxyl fluorocarbon copolymer, 28-35% of a diluent and the balance of aids; the curing agent is one or more of a hexamethylene diisocyanate trimer, an isophorone diisocyanate trimer, a dicyclohexyl methane diisocyanate trimer and a hexahydrotoluene diisocyanate trimer; and the high-hydroxyl fluorocarbon copolymer is fluorine-containing resin polyol prepared by copolymerizing fluoroolefin and alkyl vinyl ether and has the hydroxyl value of 135-145mgKOH / g. The high-hydroxyl fluorocarbon copolymer coating can be used for preparing a solar convex lens hydrophobic dust-removal coating and is excellent in performance.

Description

Technical field [0001] The invention relates to the technical field of special coatings, in particular to a high-hydroxy fluorocarbon copolymer coating and its application. Background technique [0002] Since the 20th century, electric energy has become one of the indispensable energy sources for mankind. With the rapid development of science and technology, the economy is advancing at an unprecedented speed, and the wide application of electric energy in various industries and daily life has caused unprecedented tensions in people's demand for electric energy. Therefore, countries around the world are vigorously developing the power industry. While coal, natural gas, oil and other energy sources are used for thermal power generation, wind power, water power, solar power, nuclear power and other power generation equipment are successively used. In the 1880s, American power plants used coal as fuel, and their heat engine efficiency only maintained 5%. In the early 1990s, Parsons...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/12G02B1/18
CPCC08K5/03C08K5/07C08K5/101C09D175/04G02B1/10
Inventor 赵阳杜景怡王瑞涛刘伟谷旭东
Owner 中远关西涂料(上海)有限公司
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