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High shading solar cell back film material and preparation method thereof

A solar cell, high shading technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of poor surface hydrophilicity, unable to meet the shading requirements of the back film of solar cells, etc. performance effect

Active Publication Date: 2017-01-11
SUNSHORE SOLAR ENERGY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strong C-F bond of PVDF itself makes its surface hydrophilic. If you want to use PVDF to replace TPT as the back film of solar cells, you must improve its surface hydrophilicity.
At the same time, the transparency of PVDF film is relatively good, which cannot meet the shading requirements of the back film of solar cells, and further research is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A solar cell back film material with high shading properties, the components and the mass fractions of each component are as follows: 40 parts of polyvinylidene fluoride, 10 parts of polymethyl methacrylate, 10 parts of acrylic acid, 2 parts of polyvinyl butyral, Silane coupling agent KH550 2 parts, salicylic acid 3 parts, chitosan 2 parts, titanium dioxide 5 parts, polyoxyethylene glycol oleate 1 part.

[0022] The preparation method comprises the steps of:

[0023] 1) Put the polymethyl methacrylate into the oven, the oven temperature is 140°C, the drying time is 2h, and set aside;

[0024] 2) Mix acrylic acid, polyvinyl butyral, salicylic acid, chitosan and polyoxyethylene glycol oleate evenly, then add polyvinylidene fluoride, and expose to ultraviolet light with a power of 800W. The exposure time is 6h, and the modified polyvinylidene fluoride is obtained.

[0025] 3) Add the dried polymethyl methacrylate and titanium dioxide in step 1) to the modified polyvinyli...

Embodiment 2

[0029] A solar cell back film material with high shading properties, the components and the mass fractions of each component are as follows: 60 parts of polyvinylidene fluoride, 20 parts of polymethyl methacrylate, 20 parts of acrylic acid, 6 parts of polyvinyl butyral, 8 parts of silane coupling agent KH550, 6 parts of salicylic acid, 4 parts of chitosan, 8 parts of titanium dioxide, 3 parts of polyoxyethylene glycol oleate.

[0030] The preparation method comprises the steps of:

[0031] 1) Put the polymethyl methacrylate into the oven, the oven temperature is 140°C, the drying time is 2h, and set aside;

[0032] 2) Mix acrylic acid, polyvinyl butyral, salicylic acid, chitosan and polyoxyethylene glycol oleate evenly, then add polyvinylidene fluoride, and expose to ultraviolet light with a power of 800W. The exposure time is 6h, and the modified polyvinylidene fluoride is obtained.

[0033] 3) Add the dried polymethyl methacrylate and titanium dioxide in step 1) to the mod...

Embodiment 3

[0037] High light-shielding solar cell back film material, the components and the mass fraction of each component are as follows: 45 parts of polyvinylidene fluoride, 13 parts of polymethyl methacrylate, 12 parts of acrylic acid, 3 parts of polyvinyl butyral, coupling 46 parts of silane coupling agent KH55046, 4.5 parts of salicylic acid, 3.8 parts of chitosan, 6 parts of titanium dioxide, 2 parts of polyoxyethylene glycol oleate, 0.1 part of hexyl bromide polyvinylpyridine.

[0038] The preparation method comprises the steps of:

[0039] 1) Put the polymethyl methacrylate into the oven, the oven temperature is 140°C, the drying time is 2h, and set aside;

[0040] 2) Mix acrylic acid, polyvinyl butyral, salicylic acid, chitosan and polyoxyethylene glycol oleate evenly, then add polyvinylidene fluoride, and expose to ultraviolet light with a power of 800W. The exposure time is 6h, and the modified polyvinylidene fluoride is obtained.

[0041] 3) Add the dried polymethyl metha...

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PUM

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Abstract

The invention discloses a high light-shading solar battery back membrane material and a preparation method thereof; the high light-shading solar battery back membrane material comprises the following component by mass: 40-60 parts of polyvinylidene fluoride, 10-20 parts of polymethyl methacrylate, 10-20 parts of acrylic acid, 2-6 parts of polyvinyl butyral, 2-8 parts of a coupling agent, 3-6 parts of salicylic acid, 2-4 parts of chitosan, 5-8 parts of titanium dioxide, 1-3 parts of polyoxy glycol oleate, and 0.1-0.53 part of bromohexane polyvinyl pyridine. The high light-shading solar battery back membrane material has good mechanical properties, can be well bonded with a substrate, is not easy to peel, strong in light shading property, and has the advantages of simple preparation process and chemical corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of solar battery back film materials, and in particular relates to a high light-shielding solar battery back film material and a preparation method thereof. Background technique [0002] With the rapid development of society today, non-renewable resources are constantly decreasing, so finding and developing new energy has become a part of the human development process. As we all know, the use of non-renewable energy is often accompanied by the pollution of the ecological environment, which is also a difficult problem that human beings have to solve. As a kind of green energy, solar energy has no pollution to the environment, and its source is simple, so it can be said that it is inexhaustible within the life span of human beings. Solar energy is not only a one-time energy source, but also a clean energy source. It is abundant in resources, ubiquitous, free of transportation, and free to use. Most importantl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08L33/12C08L29/14C08L5/08C08L71/08C08K13/02C08K5/09C08K5/13C08K3/22H01L31/048H01L31/049
CPCY02E10/50
Inventor 黄新东刘天人
Owner SUNSHORE SOLAR ENERGY IND