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A kind of fluorocarbon two-component coating and its application

A two-component coating and fluorocarbon technology, applied in polyurea/polyurethane coatings, coatings, photovoltaic power generation, etc., can solve the problems of poor adhesion of fluorocarbon coatings, and achieve good weather resistance, low cost, and strong adhesion Effect

Active Publication Date: 2016-03-09
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is the adhesion of fluorocarbon coatings on various modified polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and tempered glass substrates. Poor problem, providing a high adhesion fluorocarbon two-component coating that can be used to prepare coated solar cell backsheets

Method used

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  • A kind of fluorocarbon two-component coating and its application
  • A kind of fluorocarbon two-component coating and its application
  • A kind of fluorocarbon two-component coating and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In terms of parts by mass, 50g of isophorone diisocyanate (IPDI) trimer (NCO content is 37.5%, mass percentage, Bayer, Germany) was mixed with 20g xylene (Hangzhou Chemical Reagent Co., Ltd.) and 30g butyl acetate Esters (Hangzhou Chemical Reagent Co., Ltd.) were mixed evenly, and filtered to obtain 100g of component A, in which the molar content of NCO was 4.46mmol / g; 25g of methyl ethyl ketone (Hangzhou Chemical Reagent Co., Ltd.) Add 40g chlorotrifluoroethylene type fluorocarbon resin (FEVE) JF-2XA (hydroxyl value 25mgKOH / g, Changshu Sanai Fuzhonghao Material Co., Ltd.), 8g polyester polyol DESMOPHEN1652 (Germany Bayer company), 1g adhesion promotion Agent ADK (Hemmings Dechem Company), 0.01g catalyst zinc isooctanoate (Taixing Shengling Co., Ltd.), 0.69g wetting and dispersing agent BYK-163 (Germany BAK Chemical Co., Ltd.), 24g titanium dioxide (Shanghai Hongyun Yuan Chemical Co., Ltd.), 1g of carbon black (Dongguan Jutai Chemical Co., Ltd.), pre-dispersed and then ...

Embodiment 2

[0055] In terms of parts by mass, 60g of hexamethylene diisocyanate (HDI) trimer (NCO content of 19.6%, Wanhua Chemical Group Co., Ltd.) and 40g of toluene (Hangzhou Chemical Reagent Co., Ltd.) were mixed evenly, filtered, Obtain 100g of component A, in which the molar content of NCO is 2.8mmol / g; put 20g of xylene (Hangzhou Chemical Reagent Co., Ltd.) in a container, and add 41g of tetrafluoroethylene type fluorocarbon resin (FEVE) GK570 sequentially under low-speed stirring (Hydroxyl value 60mgKOH / g, Daikin Corporation of Japan), 4g polyester polyol DESMOPHEN1150 (Bayer, Germany), 3g adhesion promoter ADK (Hemmings Deqian Company), 0.02g catalyst dibutyltin dilaurate ( Taixing Shengling Co., Ltd.), 1.68g wetting and dispersing agent BYK-163 (Germany BAK Chemical Co., Ltd.), 25g titanium dioxide (Shanghai Hongyunyuan Chemical Co., Ltd.), 3g nano-silica (Shouguang Baote Chemical Co., Ltd. Company), 2g carbon black (Dongguan Jutai Chemical Co., Ltd.), after pre-dispersion, grin...

Embodiment 3

[0058] In terms of parts by mass, 50g of hexamethylene diisocyanate (HDI) biuret (NCO content of 16.5%, Bayer, Germany) and 50g of butyl acetate (Guangzhou Tongbang Chemical Co., Ltd.) were mixed evenly, and filtered to obtain 100g of component A, in which the molar content of NCO is 1.96mmol / g; put 25g of propylene glycol methyl ether acetate (PMA) (Kunshan Chengxin Chemical) in a container, and add 20g of chlorotrifluoroethylene type fluorocarbon resin in sequence under low-speed stirring (FEVE) JF-2XA (hydroxyl value 25mgKOH / g, Changshu Sanai Fuzhonghao Material Co., Ltd.) and 20g tetrafluoroethylene type fluorocarbon resin (FEVE) GK570 (hydroxyl value 60mgKOH / g, Japan Daikin Company) Compound, 6g polyester polyol DESMOPHEN2200B (Bayer, Germany), 4g adhesion promoter ADK (Hemmings Deqian Company), 0.1g catalyst zinc isooctanoate (Taixing Shengling Co., Ltd.), 1.6g wetting and dispersing Agent BYK-9010 (Germany BAK Chemical Co., Ltd.), 15g titanium dioxide (Shanghai Hongyuny...

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Abstract

The invention provides a fluorocarbon two-component coating which consists of a component A and a component B, wherein the component A consists of 50-70 parts of isocyanate curing agent and 30-50 parts of diluent A; the component B mainly comprises 35-50 parts of fluorocarbon resin, 4-12 parts of polyol resin, 1-4 parts of adhesion promoter and 20-30 parts of diluent B. The invention also provides application of the fluorocarbon two-component coating in preparation of coating-type solar cell rear panels. The application method comprises the following steps: respectively storing the component A and the component B, and proportioning according to the condition that the molar ratio of NCO to OH is (0.6-1.5):1.0 before coating. Because the polyester polyol and adhesion promoter are added into the component B, the adhesive force between the obtained fluorocarbon two-component coating and a base material can be effectively improved, the base material is effectively protected, and the obtained coating type base material can serve as a solar cell rear panel.

Description

(1) Technical field [0001] The invention relates to a high-adhesion fluorocarbon two-component coating and its application in the preparation technology of solar cell backboards. (2) Background technology [0002] As the support and protection material on the back of the solar cell, the solar cell backsheet is an indispensable part of the function of the solar cell. Traditional solar backsheet materials have a layered structure, usually composed of inner and outer weather-resistant layers and a middle moisture-resistant layer. The preparation process is relatively complicated and the cost is high. In order to obtain a solar cell back sheet with simple process and low cost, fluorocarbon coating back sheet FPF has been developed, F refers to fluorocarbon coating, and P refers to polyethylene terephthalate (PET) film. Fluorocarbon coatings introduce fluorine elements with high electronegativity, and the strong fluorine-carbon bond energy makes them have excellent weather resis...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12H01L31/048
CPCY02E10/50
Inventor 李景菲林维红周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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