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A kind of preparation method of solar cell back sheet based on modified fluoropolymer

A solar cell and polymer technology, applied in the field of solar cells, can solve problems such as high water vapor transmission rate and poor aging resistance, and achieve the effect of improving weather resistance and reducing water vapor transmission rate

Active Publication Date: 2016-08-24
谭家湾遗址公园运营管理(桐乡乌镇)有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention: the water vapor transmission rate of the solar battery back plate is high and the aging resistance is not good, the preparation method is improved, and a solar battery based on modified fluoropolymer is proposed Preparation method of backplane

Method used

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  • A kind of preparation method of solar cell back sheet based on modified fluoropolymer

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Effect test

Embodiment 1

[0023] The preparation method of the solar battery back plate, the steps are as follows:

[0024] Step 1. Preparation of prepolymer: Add 100g of water, 3g of emulsifier (sodium dodecylbenzenesulfonate) into the reactor, stir evenly, then add 3g of tert-butylstyrene, 10g of hexafluoropropylene, partial Vinyl fluoride 10g, styrene 2g, chloroprene 2g, stir evenly, then add initiator (hydrogen peroxide) 0.1g, heat to carry out polymerization reaction, the temperature of polymerization reaction is 70 ℃, the polymerization reaction time is 1 hour, Then add 3 g of titanium dioxide particles, stir evenly, obtain a polymer after suction filtration, wash the filter cake with ethanol, and dry the filter cake to obtain a prepolymer;

[0025] Step 2. Mix the prepolymer, 4g of polypropylene resin particles, and 40g of organic solvent (ethanol) evenly, heat up and reflux at a temperature of 70°C, and the time is 1 hour. After cooling, the coating liquid is obtained;

[0026] Step 3: apply t...

Embodiment 2

[0028] The preparation method of the solar battery back plate, the steps are as follows:

[0029] Step 1. Preparation of prepolymer: Add 150g of water, 5g of emulsifier (sodium dodecylbenzenesulfonate) into the reactor, stir evenly, then add 5g of tert-butylstyrene, 20g of hexafluoropropylene, partial Vinyl fluoride 20g, styrene 4g, chloroprene 4g, stir evenly, then add initiator (hydrogen peroxide) 0.4g, heat to carry out polymerization reaction, the temperature of the polymerization reaction is 80 ℃, the polymerization reaction time is 3 hours, Then add 5 g of titanium dioxide particles, stir evenly, obtain a polymer after suction filtration, wash the filter cake with ethanol, and dry the filter cake to obtain a prepolymer;

[0030] Step 2. Mix the prepolymer, 5g of polypropylene resin particles, and 60g of organic solvent (ethanol) evenly, heat up and reflux at a temperature of 80°C, and the time is 3 hours. After cooling down, the coating liquid is obtained;

[0031] Step...

Embodiment 3

[0033] The preparation method of the solar battery back plate, the steps are as follows:

[0034] Step 1. Preparation of prepolymer: Add 120g of water, 4g of emulsifier (sodium dodecylbenzenesulfonate) into the reactor, stir evenly, then add 4g of tert-butylstyrene, 15g of hexafluoropropylene, partial 15g of vinyl fluoride, 3g of styrene, and 3g of chloroprene. After stirring evenly, add 0.2g of initiator (hydrogen peroxide) and heat for polymerization. The temperature of the polymerization is 75°C, and the polymerization time is 2 hours. Then add 4g of titanium dioxide particles, stir evenly, obtain the polymer after suction filtration, wash the filter cake with ethanol, and dry the filter cake to obtain the prepolymer;

[0035] Step 2: Mix the prepolymer, 4g of polypropylene resin particles, and 50g of organic solvent (ethanol) evenly, heat up and reflux, the temperature is 75°C, the time is 2 hours, and after cooling, the coating liquid is obtained;

[0036] Step 3: apply ...

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Abstract

The invention relates to a method for preparing a solar cell backboard based on a modified fluoropolymer and belongs to the technical field of solar cells. The method comprises the steps of adding water and an emulgator into a reactor, stirring the mixture evenly, adding tertiary butyl styrene, hexafluoropropylene, vinylidene fluoride, styrene and chloroprene, stirring the mixture evenly, adding an initiator, conducting heating for polymerization reaction, adding titanium dioxide particles, stirring the mixture evenly, conducting suction filtration to obtain a polymer, washing a filter cake with ethyl alcohol, drying the filter cake to obtain a prepolymer, mixing the prepolymer, polypropylene resin particles and an organic solvent evenly, conducting warming reflux, obtaining a coating solution after cooling, applying the coating solution on a PET base material with the knife coating method, conducting drying with hot air, and obtaining the cell backboard. According to the method, a polymer monomer is prepared into the prepolymer and coated with titanium oxide powder, so that a colloidal structure is formed between materials, weather resistance is improved, and steam permeability is reduced.

Description

technical field [0001] The invention relates to a preparation method of a solar cell backboard based on a modified fluorine-containing polymer, and belongs to the technical field of solar cells. Background technique [0002] Relevant statistics show that the world's oil can supply humans for another 45 years, natural gas can only be supplied for 61 years, and coal is slightly longer, but only for about 230 years. China's energy situation is even more severe. According to current statistics, China's oil reserves are only enough for 15 years of exploitation, natural gas for about 30 years, and coal for only 80 years. At the same time, due to the rapid economic growth, domestic energy demand is still growing. Rapid increase. Now imported crude oil accounts for 40%-50% of total consumption. [0003] A solar cell is a device that uses the principle of photoelectric conversion to convert the sun's radiant light into electrical energy through a semiconductor material. This photoe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/049H01L31/18H01L31/20
CPCH01L31/18H01L31/20Y02E10/50Y02P70/50
Inventor 黄新东刘天人
Owner 谭家湾遗址公园运营管理(桐乡乌镇)有限公司
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