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Method for preparing anti-scratch coating material for solar cell backplanes

A technology of solar cells and coating materials, applied in the direction of coating, etc., can solve the problems of poor film adhesion or interlayer bonding, increase coating cost, peeling, etc., achieve good weather resistance and scratch resistance, reduce Effect of surface energy, good hydrophobicity

Active Publication Date: 2013-12-25
KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the fluorocarbon resin coating is used, it is often caused by the phenomenon of partial or even complete peeling off due to the poor adhesion of the coating film or the interlayer bonding force.
Moreover, the price of fluorinated acrylate monomers is relatively high, and a large amount of use will inevitably increase the cost of coatings, thus losing market competitiveness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Add the mixed solution made of styrene 20g, butyl acrylate 18g, hydroxypropyl acrylate 25g, undecylenic acid 8g, benzoyl peroxide 3g and 30g toluene solvent into a four-necked flask with stirrer, thermometer and reflux tube In the medium, stir under normal pressure and heat up to 82°C, then add 30g of dodecafluoroheptyl methacrylate, 20g of tetrafluoropropyl methacrylate, 10g of low molecular weight bisphenol A epoxy resin and 35g of toluene dropwise at a constant speed. The mixed solution was added in 40 minutes. After the addition, 1 g of benzoyl peroxide was added after the heat preservation reaction for 2 hours, and the heat preservation reaction was continued for 3 hours. The reaction was stopped, and the product P1 was obtained after cooling to room temperature and discharging.

Embodiment 2

[0018] Add 16g of styrene, 14g of butyl acrylate, 16g of hydroxypropyl acrylate, 10g of 2-ethylhexyl acrylate, 5g of acrylic acid, 3g of benzoyl peroxide and 40g of toluene into a mixed solution with a stirrer, a thermometer, In the four-necked flask of the reflux tube, stir under normal pressure and heat up to 85 ° C, then add 25 g of dodecafluoroheptyl methacrylate, 12 g of tetrafluoropropyl methacrylate, and low molecular weight bisphenol A epoxy resin dropwise at a constant speed. Add the mixed solution of 8g and 50g toluene in 40 minutes, add 1g of benzoyl peroxide after 2 hours of heat preservation reaction, keep heat temperature for 3 hours, stop the reaction, cool to room temperature and discharge to obtain product P2.

Embodiment 3

[0020] Add 12g of styrene, 20g of 2-ethylhexyl acrylate, 22g of hydroxypropyl acrylate, 6g of methacrylic acid, 2g of azobisisobutyronitrile and 45g of propylene glycol propyl ether into a mixed solution with a stirrer, a thermometer, In the four-necked flask of the reflux tube, stir under normal pressure and heat up to 80 ° C, then add 20 g of dodecafluoroheptyl methacrylate, 16 g of tetrafluoropropyl methacrylate, and 6 g of low molecular weight bisphenol A epoxy resin dropwise at a constant speed. The mixed solution made with 50g propylene glycol propyl ether was added in 40 minutes. After the addition, 1g of azobisisobutyronitrile was added after the heat preservation reaction for 2 hours, and the heat preservation reaction was continued for 3 hours. The reaction was stopped, and the product P3 was obtained after cooling to room temperature.

[0021]

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PUM

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Abstract

The invention relates to a method for preparing an anti-scratch coating material for solar cell backplanes. According to the method, fluorine-containing methacrylate, styrene, acrylate, gadoleic acid and epoxy resin are used as raw materials, and the object product can be obtained through a polymerization reaction in a polymer solution polymerization method under the action of an initiator. The prepared fluorine-containing acrylate resin coating prepared with the method has the advantages of being resistant to scratch, strong in hydrophobicity and high in adhesive force.

Description

technical field [0001] The invention relates to a preparation method of a scratch-resistant coating material for a solar battery back plate, in particular to a fluorine-containing acrylate resin coating material, which has the characteristics of scratch resistance, good hydrophobicity and strong adhesion. Background technique [0002] The photovoltaic battery backplane is in direct contact with the external environment all the year round, and is easily damaged by friction and corrosion with foreign objects. The crystalline silicon battery components must meet the 25-year service requirement. In order to meet the reliability and stability of the battery components, this pair of backplane There are very strict requirements on the weather resistance, humidity and heat aging performance, and electrical insulation performance of the board. The C—F bond in fluorocarbon coatings has large and stable bond energy, low surface energy after film formation, excellent weather resistance,...

Claims

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Application Information

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IPC IPC(8): C08F220/22C08F212/08C08F220/18C08F220/28C08F220/64C08F220/06C08F8/00C09D133/16C09D133/14C09D133/08
Inventor 曾作祥刘燕武李哲龙朱万育沈艳
Owner KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD
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