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A kind of multilayer composite solar cell back sheet film and preparation method thereof

A solar cell and multi-layer composite technology, which is applied in coatings, circuits, photovoltaic power generation, etc., can solve the problems of poor consistency and easy cracking of solar cell backplane films, achieve excellent antibacterial and flame retardant properties, and meet life requirements Effect

Active Publication Date: 2022-07-19
NINGBO QINBANG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above deficiencies in the prior art, the present invention provides a multi-layer composite solar cell back sheet film to solve the defects of the existing solar cell back sheet film such as poor overall consistency, easy cracking, etc., and its ability to withstand high and low temperatures. , weather resistance, aging resistance and other performance problems, so as to further make it meet the life requirements of long-term use in harsh environments

Method used

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  • A kind of multilayer composite solar cell back sheet film and preparation method thereof
  • A kind of multilayer composite solar cell back sheet film and preparation method thereof
  • A kind of multilayer composite solar cell back sheet film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The multi-layer composite solar cell back sheet film of this embodiment includes an intermediate PET base film and a first coating layer and a second coating layer respectively disposed on the upper surface and the lower surface of the PET base film, the second coating layer It is composed of the following raw materials in parts by weight: 40 parts of polytetrafluoroethylene resin, 25 parts of modified epoxy resin, 5 parts of fluorosilicon modified acrylic resin, 1 part of nanometer titanium dioxide and 3 parts of polyethylene glycol.

[0025] The first coating is composed of the following raw materials by weight: 40 parts of polytetrafluoroethylene resin, 15 parts of modified epoxy resin, 8 parts of Ag-MOFs material, 1.5 parts of nano inorganic filler, 3 parts of dodecyl Sodium sulfate, 1 part deionized water, 5 parts n-hexane, and 0.1 part fluorine-containing silane coupling agent.

[0026] The modified epoxy resin is polyethylene glycol diglycidyl ether epoxy resin, ...

Embodiment 2

[0035] The multi-layer composite solar cell back sheet film of this embodiment includes an intermediate PET base film and a first coating layer and a second coating layer respectively disposed on the upper surface and the lower surface of the PET base film, the second coating layer It is composed of the following raw materials in parts by weight: 60 parts of polytetrafluoroethylene resin, 35 parts of modified epoxy resin, 10 parts of fluorosilicon modified acrylic resin, 3 parts of nanometer titanium dioxide and 5 parts of polyethylene glycol.

[0036] The first coating is composed of the following raw materials by weight: 50 parts of polytetrafluoroethylene resin, 20 parts of modified epoxy resin, 12 parts of Ag-MOFs material, 1.7 parts of nano inorganic filler, 6 parts of dodecyl Sodium sulfate, 3 parts deionized water, 10 parts n-hexane, and 0.2 part fluorine-containing silane coupling agent.

[0037] The modified epoxy resin is sorbitan polyglycidyl ether epoxy resin. Its...

Embodiment 3

[0044] The multi-layer composite solar cell back sheet film of this embodiment includes an intermediate PET base film and a first coating layer and a second coating layer respectively disposed on the upper surface and the lower surface of the PET base film, the second coating layer It is composed of the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene resin, 45 parts of modified epoxy resin, 15 parts of fluorosilicon modified acrylic resin, 5 parts of nanometer titanium dioxide and 8 parts of polyethylene glycol.

[0045] The first coating is composed of the following raw materials by weight: 60 parts of polytetrafluoroethylene resin, 25 parts of modified epoxy resin, 15 parts of Ag-MOFs material, 1.8 parts of nano inorganic filler, 8 parts of dodecyl Sodium sulfate, 5 parts deionized water, 15 parts n-hexane, and 0.3 part fluorine-containing silane coupling agent.

[0046] The modified epoxy resin is polyethylene glycol diglycidyl ether epoxy re...

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Abstract

The invention discloses a multi-layer composite solar cell backplane film. The backplane film comprises an intermediate PET base film and a first coating layer and a second coating layer respectively arranged on the upper surface and the lower surface of the PET base film. The second coating is composed of the following raw materials in parts by weight: 40-80 parts of polytetrafluoroethylene resin, 25-45 parts of modified epoxy resin, 5-15 parts of fluorosilicon modified acrylic resin, 1-5 parts of Nano-titanium dioxide and 3 to 8 parts of polyethylene glycol. The multi-layer composite solar cell back sheet film of the present invention not only has excellent properties of weather resistance, aging resistance and damp heat resistance, but also has excellent antibacterial and flame retardant properties, and can meet the long-term service life requirements in harsh environments.

Description

technical field [0001] The invention relates to the technical field of photovoltaics, in particular to a multilayer composite solar cell back sheet film and a preparation method thereof. Background technique [0002] Backsheet is a photovoltaic packaging material that is used on the back of solar modules and is directly in contact with the external environment in a large area. It is usually required to have excellent long-term aging resistance (humid heat, dry heat, ultraviolet), electrical insulation resistance, water vapor barrier, etc. performance. The solar photovoltaic backsheet is located on the back of the solar panel, which protects and supports the cells. There are many types of photovoltaic backsheets, and there are two most commonly used ones, namely coating type and composite type according to the manufacturing process; Fluorine-containing materials are divided into three types: double-sided fluorine-containing backsheets, single-sided fluorine-containing backsh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/049C09D127/18C09D7/61C09D7/65C08G83/00
CPCH01L31/049C09D127/18C09D7/61C09D7/65C08G83/008C08K2003/2241C08K2201/011C08L2203/20C08L63/00C08L51/08C08K3/22Y02E10/50
Inventor 刘勤学张爱琴姜丹
Owner NINGBO QINBANG NEW MATERIAL TECH CO LTD
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