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High-flexibility quaternary copolymerization fluorine-containing resin as well as preparation method and application thereof

A quaternary copolymerization, fluorine-containing resin technology, applied in electrical components, photovoltaic power generation, circuits, etc., can solve the problems of low strength, easy cracking, poor flexibility, etc., and achieve good bonding performance, not easy to bond, and reduce weight Effect

Inactive Publication Date: 2011-08-24
SHANDONG DONGYUE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the film has the defects of easy cracking at high temperature, low strength and poor flexibility.

Method used

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  • High-flexibility quaternary copolymerization fluorine-containing resin as well as preparation method and application thereof
  • High-flexibility quaternary copolymerization fluorine-containing resin as well as preparation method and application thereof
  • High-flexibility quaternary copolymerization fluorine-containing resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A quaternary copolymerized fluorine-containing resin for highly flexible solar cell encapsulation films, which is formed by copolymerizing the following monomers, all in molar percentages in the copolymer:

[0034] Ethylene 39.5%, tetrafluoroethylene 50.4%, perfluoro-n-propyl vinyl ether 4.9%, 2-(perfluoropropoxy) perfluoropropyl trifluorovinyl ether 5.2%.

[0035] The above-mentioned highly flexible solar cell encapsulation film is made of quaternary copolymerized fluorine-containing resin by solution polymerization method, using fluorocarbon solvent:

[0036] The 10L stainless steel autoclave equipped with stirring, temperature control, circulating heating and circulating cooling water devices was cleaned and fully dried, then vacuumed, replaced with nitrogen three times until the oxygen content was less than 10ppm, and then vacuumed to 0.0001Mpa. Add 6.2L of perfluoroheptane solvent, 266g (1mol) of perfluoro-n-propyl vinyl ether and 432g (1mol) of 2-(perfluoropropoxy...

Embodiment 2

[0042] A quaternary copolymerized fluorine-containing resin for highly flexible solar cell encapsulation films, which is formed by copolymerizing the following monomers, all in molar percentages in the copolymer:

[0043] Ethylene 41.6%, tetrafluoroethylene 53.3%, perfluoro-n-propyl vinyl ether 2.6%, 2-(perfluoropropoxy) perfluoropropyl trifluorovinyl ether 2.5%.

[0044] The above-mentioned highly flexible solar cell packaging film is made of quaternary copolymerized fluorine-containing resin, which is prepared by suspension polymerization, and water is used as the dispersion medium:

[0045] Clean the 10L stainless steel high-pressure reactor equipped with stirring, temperature control, circulating heating, and circulating cooling water devices and then vacuumize it. Add 15g of perfluoropropoxy ammonium carboxylate dispersant and 3400g of pure water to the reactor, and then vacuumize it. Replace with nitrogen three times until the oxygen content is less than 10ppm, and vacuu...

Embodiment 3

[0051] A quaternary copolymerized fluorine-containing resin for highly flexible solar cell encapsulation films, which is formed by copolymerizing the following monomers, all in molar percentages in the copolymer:

[0052] Ethylene 34.9%, tetrafluoroethylene 49.1%, perfluoromethyl vinyl ether 6.8%, 2-(perfluoropropoxy) perfluoropropyl trifluorovinyl ether 9.2%.

[0053] The above-mentioned highly flexible solar cell packaging film is made of quaternary copolymerized fluorine-containing resin by emulsion polymerization, and the polymerization reaction is carried out in the water phase:

[0054] After cleaning the 10L stainless steel high-pressure reactor equipped with stirring, temperature control, circulating heating and circulating cooling water devices, add alkylsulfonate sodium emulsifier and pure water into the reactor, the concentration of the emulsifier is 0.2-3% , the ratio of water to the total weight of the monomer is 60:40. Vacuumize the reactor until 0.0001Mpa, add ...

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Abstract

The invention relates to a high-flexibility quaternary copolymerization fluorine-containing resin as well as a preparation method and an application thereof, belonging to the technical field of solar photovoltaic cell materials. The high-flexibility quaternary copolymerization fluorine-containing resin used for the packaging film of a solar cell is characterized by being copolymerized by the following monomers in the molar percentage by weight in a copolymer: 30-45% of ethylene, 40-60% of tetrafluoroethylene, 1-10% of perfluoroalkylation vinyl ether and 1-10% of 2-(perfluor propyl group) perfluor propyl group trifluoroethylene ether. A film prepared from the high-flexibility quaternary copolymerization fluorine-contained resin has the advantages of good flexibility and transparency, good weather fastness, good self-cleaning capability, high mechanical strength and excellent bonding property, and can serve as a packaging film to replace packaging glass in the solar cell assembly, thereby solving the problems that glass is easily broken and polluted, is difficult to maintain and transport, have small possibility of bonding and the like, and widening the application field of the solar cells.

Description

technical field [0001] The invention relates to a highly flexible quaternary copolymerized fluorine-containing resin and its preparation method and application, belonging to the technical field of solar photovoltaic cell materials. Background technique [0002] The solar cell modules currently produced are generally made of low-iron tempered glass, EVA film, single-chip solar cells with high conversion efficiency, EVA film, and a back film made of fluoroplastics and polyesters. Using reliable welding technology, high-vacuum heating lamination process and equipped with anti-corrosion aluminum alloy frame and watertight junction box, the solar cell module is prepared with reasonable structure, good UV aging resistance and wind resistance. [0003] As the upper packaging material of solar cell modules, tempered glass has good weather resistance, solvent resistance, heat resistance, transparency and water resistance. However, due to the fragility and heavy defects of glass itsel...

Claims

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Application Information

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IPC IPC(8): C08F214/26C08F210/02C08F216/14C08L27/18H01L31/048
CPCY02E10/50
Inventor 王婧张永明张恒蔡胜梅王亚宗少杰
Owner SHANDONG DONGYUE POLYMER MATERIAL
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