Modified PVDF base material for solar battery backplane and preparation method thereof

A technology for solar cells and backplanes, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low resistance, achieve the effects of reduced affinity, improved heat and humidity resistance, and less delamination and yellowing

Active Publication Date: 2016-05-25
谭家湾遗址公园运营管理(桐乡乌镇)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-ultraviolet additive of the invention can only resist ultraviolet rays, and has low resistance to the external hot and humid environment

Method used

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  • Modified PVDF base material for solar battery backplane and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A modified PVDF base material for a solar battery back sheet, comprising the following components in parts by weight: 75 parts of tetrabutylphosphine chloride, 60 parts of PVDF, 70 parts of benzyltributylammonium chloride, and 40 parts of polyvinyl butyral 85 parts, polytetrafluoroethylene 85 parts, chloromethyl styrene 53 parts, sodium tartrate 55 parts, polyphosphate 60 parts, phthalates 60 parts, aliphatic amines 35 parts.

[0029] Polyphosphate is a mixture of sodium pyrophosphate, trisodium phosphate and sodium hexametaphosphate in a mass ratio of 1:3:1.

[0030] Phthalates are a mixture of dicyclohexyl phthalate, butyl benzyl phthalate, and diisobutyl phthalate in a mass ratio of 1:2:1.

[0031] Aliphatic amines are mixtures of diaminocyclohexane, methylenebicyclohexaneamine and tetraethylenepentamine in a mass ratio of 2:1:1.

[0032] The preparation method of the modified PVDF base material for the above-mentioned solar battery back plate comprises the followin...

Embodiment 2

[0039] A modified PVDF base material for a solar battery back sheet, comprising the following components in parts by weight: 60 parts of tetrabutylphosphine chloride, 30 parts of PVDF, 30 parts of benzyl tributylammonium chloride, 20 parts of polyvinyl butyral 70 parts, polytetrafluoroethylene 70 parts, chloromethyl styrene 40 parts, sodium tartrate 40 parts, polyphosphate 30 parts, phthalates 40 parts, aliphatic amines 20 parts.

[0040] Polyphosphate is a mixture of sodium pyrophosphate, trisodium phosphate and tetrasodium phosphate in a mass ratio of 1:1:1.

[0041] The phthalates are butyl benzyl phthalate.

[0042] The aliphatic amine is triethylenetetramine.

[0043] The preparation method of the modified PVDF base material for the above-mentioned solar battery back plate comprises the following steps:

[0044] (1) Tetrabutylphosphine chloride, PVDF, benzyltributylammonium chloride, polyvinyl butyral, polytetrafluoroethylene, chloromethylstyrene, phthalates, aliphatic ...

Embodiment 3

[0049]A modified PVDF base material for a solar battery back sheet, comprising the following components in parts by weight: 90 parts of tetrabutylphosphine chloride, 100 parts of PVDF, 100 parts of benzyl tributylammonium chloride, 60 parts of polyvinyl butyral 100 parts of polytetrafluoroethylene, 60 parts of chloromethyl styrene, 40 parts of sodium tartrate, 30 parts of polyphosphate, 40 parts of phthalates, and 20 parts of aliphatic amines.

[0050] Polyphosphate is a mixture of sodium pyrophosphate, tetrasodium phosphate and sodium hexametaphosphate with a mass ratio of 5:2:1.

[0051] Phthalates are a mixture of dicyclohexyl phthalate and diisobutyl phthalate in a mass ratio of 1:3.

[0052] The aliphatic amines are mixtures of diaminocyclohexane, diethylenetriamine and triethylenetetramine in a mass ratio of 1:5:1.

[0053] The preparation method of the modified PVDF base material for the above-mentioned solar battery back plate comprises the following steps:

[0054] ...

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Abstract

The invention discloses a modified PVDF base material for a solar cell backplane and a preparation method thereof. The modified PVDF base material comprises the following ingredients, by weight, 60-90 parts of tetrabutylphosphonium chloride, 30-100 parts of PVDF, 30-100 parts of benzyltributylammonium chloride, 20-60 parts of polyvinyl butyral, 70-100 parts of teflon, 40-60 parts of polychloromethylstyrene, 40-70 parts of sodium tartrate, 30-100 parts of polyphosphate, 40-80 parts of phthalic acid esters and 20-50 parts of aliphatic amines. The preparation method comprises the following steps: uniformly mixing tetrabutylphosphonium chloride, PVDF, benzyltributylammonium chloride, polyvinyl butyral, teflon, polychloromethylstyrene, phthalic acid esters and aliphatic amines, heating to 300-350 DEG C, slowly adding residual ingredients, and reacting for 7-10h; drying and extruding, and cooling a casting strip; and stretching and shaping. According to the invention, affinity between PVDF and water is reduced, geared-up formation of water is minimized, and degradation and aging of the base material are prevented.

Description

technical field [0001] The invention relates to the field of solar cell back sheets, in particular to a modified PVDF base material for solar cell back sheets and a preparation method thereof. Background technique [0002] The solar backsheet is located on the back of the solar panel. Fluorocarbon coatings made of PVDF, CTFE, and PTFE resins developed and produced by fluororesin multinational companies (such as Japan's Asahi Glass, Daikin, and France's Arkema, etc.) are widely used in It is used in the surface protection of bridges, buildings, railways, and communication facilities, and has withstood the harsh outdoor test for more than 40 years, showing excellent weather resistance. At the same time, material surface modification technologies including low-temperature plasma modification technology, radiation modification technology, and vacuum plasma chemical grafting technology are relatively mature. Therefore, fluorocarbon coatings, PET surface modification technology, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/18C08L27/16C08L29/14C08K13/02C08K5/19C08K5/50C08K5/03C08K5/098C08K3/32H01L31/049
CPCY02E10/50
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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