Composite solar cell back membrane

A solar cell and composite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of reducing the use time and performance, insufficient weather resistance of the transparent polymer back film, and achieve good self-cleaning function, flame retardant The effect of good performance and good electrical insulation performance

Inactive Publication Date: 2019-05-10
CHANGZHOU HUITIAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the transparent polymer back film that fixes, seals and protects the battery shee

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: Take 10 parts of polyvinylidene fluoride, 15 parts of polymethyl methacrylate, 5 parts of polyethylene terephthalate, 20 parts of maleic anhydride, 2 parts of benzoyl peroxide, antioxidant 1 part, 1 part of hydrophobic monomer styrene, 0.5 part of calcium carbonate, 0.3 part of glass fiber, 0.1 part of talcum powder, and 0.1 part of quartz powder are mixed, and the mixed slurry is dispersed for 40 minutes with a twin-shaft mixer, and is used for three Grinding the dispersed slurry three times with a roller grinder to make the viscosity of the slurry reach between 50 Pa·s, and then drying the slurry to obtain the composite solar cell back film.

Embodiment 2

[0012] Embodiment two: get 20 parts of polyvinylidene fluoride, 25 parts of polymethyl methacrylate, 8 parts of polyethylene terephthalate, 30 parts of maleic anhydride, 5 parts of benzoyl peroxide, antioxidant 3 parts, 3 parts of hydrophobic monomer styrene, 1.5 parts of calcium carbonate, 0.9 parts of glass fiber, 0.3 parts of talcum powder, and 0.3 parts of quartz powder are mixed, and the mixed slurry is dispersed for 40 minutes with a twin-shaft mixer, and three Grind the dispersed slurry for 4 times with a roller grinder to make the viscosity of the slurry reach between 70 Pa·s, and then dry the slurry to obtain the composite solar cell back film.

Embodiment 3

[0013] Embodiment three: get 30 parts of polyvinylidene fluoride, 35 parts of polymethyl methacrylate, 10 parts of polyethylene terephthalate, 50 parts of maleic anhydride, 10 parts of benzoyl peroxide, antioxidant 5 parts, 5 parts of hydrophobic monomer styrene, 2.5 parts of calcium carbonate, 1.5 parts of glass fiber, 0.5 part of talcum powder, and 0.5 part of quartz powder are mixed, and the mixed slurry is dispersed for 40 minutes with a twin-shaft mixer, and three Grinding the dispersed slurry for 5 times with a roller grinder to make the viscosity of the slurry reach between 90 Pa·s, and then drying the slurry to obtain the composite solar cell back film.

[0014] The present invention takes embodiment one, gets 10 parts of polyvinylidene fluoride, 15 parts of polymethyl methacrylate, 5 parts of polyethylene terephthalates, 20 parts of maleic anhydride, 2 parts of benzoyl peroxide, 1 part of antioxidant, 1 part of hydrophobic monomer styrene, 0.5 part of calcium carbonat...

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Abstract

The invention relates to the technical field of solar cell back membranes, in particular to a composite solar cell back membrane, comprising a base material, a fluorine-bearing layer and an adhesive layer; the fluorine-bearing layer is made from 10-30 parts of polyvinylidene fluoride, 15-35 parts of polymethyl methacrylate, 5-10 parts of polyethylene glycol terephthalate, 10-20 parts of polyolefingraft, 1-5 parts of hydrophobic monomer styrene, and 1-5 parts of an inorganic filler. During preparation, the polyvinylidene fluoride, polymethyl methacrylate, polyethylene glycol terephthalate, polyolefin graft, hydrophobic monomer styrene and inorganic filler in the parts by weight are mixed; the mixed slurry is dispersed for 40 min through a dual-shaft mixer; the dispersed slurry is ground 3-5 times with a three-roller grinder so that viscosity of the slurry reaches 50-90 pa s; the slurry is then dried to obtain the composite solar cell back membrane. The back membrane prepared herein hasgood self-cleaning performance, good resistance to high and low temperatures, good chemical stability, good electrical insulation, zero adhesion, good weatherability, good flame retardance and good self-lubricating performance.

Description

technical field [0001] The invention relates to the technical field of solar battery back film, in particular to a composite solar battery back film. Background technique [0002] With the development of science and technology, human beings are paying more and more attention to environmental protection issues. Green and environmentally friendly energy has become the focus of development. Solar energy, as an inexhaustible and inexhaustible energy source, has been developed and utilized in large quantities in various countries. At present, solar cells have achieved large-scale production. Solar back film is an important component of solar cells, which is used to resist damage to components caused by harsh environments and ensure the service life of components. At present, the transparent polymer back film that fixes, seals and protects the battery sheet has insufficient weather resistance, which greatly reduces its service time and performance. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08L27/16C08L67/02C08L51/06C08K13/04C08K3/26C08K7/14C08K3/34C08K3/36C08J5/18H01B3/44B32B27/36B32B27/06B32B7/12H01L31/049
CPCY02E10/50
Inventor 周君李建
Owner CHANGZHOU HUITIAN NEW MATERIALS
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