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Fluorocarbon coating solution and solar backplane using fluorocarbon coating

A technology of solar backplane and fluorocarbon coating, which is applied in the field of solar backplane to achieve high packaging strength, good weather resistance, and meet the needs of outdoor aging use

Inactive Publication Date: 2019-08-27
NINGBO JIANGBEI EXCITON NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are almost no patent reports on how to achieve a high weather resistance formula to meet a series of aging tests such as UV aging and damp heat aging.

Method used

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  • Fluorocarbon coating solution and solar backplane using fluorocarbon coating
  • Fluorocarbon coating solution and solar backplane using fluorocarbon coating
  • Fluorocarbon coating solution and solar backplane using fluorocarbon coating

Examples

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Effect test

preparation example Construction

[0064] The preparation method of the solar backplane film provided by the invention comprises the following steps:

[0065] (1) Coating the fluorocarbon layer coating solution on the surface of the substrate, placing it in a circulation oven for curing to form a fluorocarbon layer; (2) coating the other side of the semi-finished substrate coated with the fluorocarbon layer with an adhesive layer, The adhesive layer is placed in a circulating oven for drying treatment, and then compounded with a fluorine film layer; (3) curing the finished solar backplane; (4) laminating the solar backplane with EVA to prepare a simulation test for packaging strength.

[0066] Further, (1) in the process, the temperature of the circulating oven drying of the fluorocarbon layer treatment is 150° C., and the time is 2 minutes;

[0067] Further, (2) the temperature of the circulating oven for drying the process adhesive is 90° C., and the time is 2 minutes;

[0068] Further, the aging treatment t...

Embodiment 1

[0080] The preparation method of the fluorocarbon coating solution provided in this embodiment includes:

[0081] 40% polytetrafluoroethylene type fluorocarbon resin, 50% rutile type titanium dioxide, 5% silica matting powder, 0.8% polyacrylate additive, 4.2% isocyanate curing agent. The above raw materials are dispersed in an organic solvent to form a fluorocarbon coating solution with a solid content of 60%. Among them, polytetrafluoroethylene type fluorocarbon resin is provided by Daikin Fluorochemical Co., Ltd., titanium dioxide is provided by DuPont, matting agent is provided by Grace Co., Ltd., polyacrylate is provided by BYK, isocyanate is provided by Bayer, and organic solvent is acetic acid butyl ester.

[0082] Coatings were applied on 300 μm PET substrates.

[0083] The dry film thickness of the formed fluorocarbon layer was 20 μm.

[0084] The performance test results of the prepared solar backsheet are shown in Table 1.

Embodiment 2

[0086] The preparation method of the fluorocarbon coating solution provided in this embodiment includes:

[0087] 50% polytetrafluoroethylene type fluorocarbon resin, 37% rutile type titanium dioxide, 3% silica matting powder, 0.7% polyacrylate additive, 9.3% isocyanate. The above raw materials are dispersed in an organic solvent to form a fluorocarbon coating solution with a solid content of 40%. Among them, polytetrafluoroethylene type fluorocarbon resin is provided by Daikin Fluorochemical Co., Ltd., titanium dioxide is provided by DuPont, matting agent is provided by Grace Co., Ltd., polyacrylate is provided by BYK Chemicals, isocyanate is provided by Bayer, and organic solvent is acetic acid butyl ester.

[0088] Coatings were applied on 275 μm PET substrates.

[0089] The dry film thickness of the formed fluorocarbon layer was 16 μm.

[0090] The performance test results of the prepared fluorocarbon coating are shown in Table 1.

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Abstract

The invention relates to the technical field of solar backplanes, in particular to a fluorocarbon coating solution and a solar backplane using the fluorocarbon coating. In order to improve the ultraviolet aging resistance and wet-heat aging resistance of an existing solar backplane, the fluorocarbon coating solution and the solar backplane using the fluorocarbon coating solution are provided. Theprovided fluorocarbon coating solution is prepared from, by weight, 40%-70% of fluorocarbon resin, 20%-50% of titanium dioxide, 1%-5% of matting powder, 0.2%-0.8% of polyacrylate and 3%-10% of isocyanate. The solid content is controlled to be 40-60%, all the components are limited to be within the above content ranges, the fluorocarbon resin can react at high temperature preliminarily and then iscured at 50 DEG C for 48 hours, a high-density fluorocarbon coating is formed on the surface of PET, UV light can be blocked, and it is found that there are no obvious performance degradation throughvarious weatherability tests.

Description

technical field [0001] The invention relates to the technical field of solar backboards, in particular to a fluorocarbon coating liquid and a solar backboard using the coating. Background technique [0002] With the depletion of traditional resources such as oil and coal and the increasing emphasis on the ecological environment, the development of renewable energy has become a topic of close concern to the whole society. Solar energy is an inexhaustible energy product, and using photovoltaic (solar) components to convert light energy into electrical energy is currently the most common method. As an auxiliary material to support and protect the cells, the backsheet in the photovoltaic module plays a vital role in the outdoor aging and photoelectric conversion efficiency of the entire photovoltaic module. Good weather resistance of the backsheet is the fundamental guarantee for outdoor use of modules. Since the outdoor aging is the comprehensive aging effect of ultraviolet r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/18C09D7/61C09D7/63C09D7/65H01L31/049
CPCC08K2003/2241C08L2201/08C08L2203/204C09D7/61C09D7/63C09D7/65C09D127/18H01L31/049C08L33/04C08K3/22C08K5/29C08K3/36Y02E10/50
Inventor 唐海江汪诚简伟任邓文辉薛永富夏寅李刚张彦
Owner NINGBO JIANGBEI EXCITON NEW MATERIAL TECH CO LTD
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