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A kind of solar photovoltaic backplane and preparation method thereof

A solar photovoltaic and photovoltaic backplane technology, applied in the field of photovoltaic materials, can solve the problems of incineration, non-degradable components, environmental pollution, etc., and achieve the effects of improved UV aging performance, good flame retardancy, and improved mechanical properties

Active Publication Date: 2019-05-07
CSI SOLAR POWER GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, fluoropolymer backsheets are mostly used in the manufacture of photovoltaic modules in my country. Since the polymer contains halogen elements, after the components are scrapped, the recycling of fluoropolymers may face some difficulties, resulting in environmental pollution problems. future will highlight
Given the lack of effective recycling options and technologies in the industry, and the unusually strong chemical structure of fluorocarbons, typical landfill disposal methods cannot degrade this component within 1,000 years
At the same time, since fluorine will release toxic and harmful gases after burning, it cannot be disposed of by incineration.

Method used

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  • A kind of solar photovoltaic backplane and preparation method thereof
  • A kind of solar photovoltaic backplane and preparation method thereof
  • A kind of solar photovoltaic backplane and preparation method thereof

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Embodiment 1

[0045] In this embodiment, the structure of the solar photovoltaic backplane is as follows figure 1As shown, from the inside to the outside are PE film layer (1), glue layer (2), middle PET layer (3) and outer layer PET layer (4), and the outer layer PET layer mainly consists of the following mass percentages: The ingredients are made with:

[0046]

[0047] Among them, the antioxidant is BHA, the coupling stabilizer is HRP, the antihydrolysis agent is polycarbodiimide UN-03, the light stabilizer is rare earth light stabilizer, and the flame retardant is antimony trioxide.

[0048] The preparation method of the solar photovoltaic backplane is as follows:

[0049] (1) Mixing, heating, extruding, and granulating the raw materials of the outer layer PET layer according to the formula to obtain the outer layer PET modified plastic particles;

[0050] (2) Extruding the plastic particles used in the middle PET layer and the modified PET plastic particles in the outer layer obta...

Embodiment 2

[0054] In this embodiment, the structure of the solar photovoltaic backplane is as follows figure 1 As shown, from the inside to the outside are EVA film layer (1), glue layer (2), middle PET layer (3) and outer layer PET layer (4), and the outer layer PET layer mainly consists of the following mass percentages: The ingredients are made with:

[0055]

[0056] Among them, the antioxidant is BHA, the coupling stabilizer is HRP, the antihydrolysis agent is polycarbodiimide UN-03, the light stabilizer is rare earth light stabilizer, and the flame retardant is antimony trioxide.

[0057] The preparation method of the solar photovoltaic backplane is as follows:

[0058] (1) Mixing, heating, extruding, and granulating the raw materials of the outer layer PET layer according to the formula to obtain the outer layer PET modified plastic particles;

[0059] (2) Extruding the plastic particles used in the middle PET layer and the modified PET plastic particles in the outer layer ob...

Embodiment 3

[0063] In this embodiment, the structure of the solar photovoltaic backplane is as follows figure 1 As shown, from the inside to the outside are PE film layer (1), glue layer (2), middle PET layer (3) and outer layer PET layer (4), and the outer layer PET layer mainly consists of the following mass percentages: The ingredients are made with:

[0064]

[0065] Among them, the antioxidant is BHT, the coupling stabilizer is aluminum-titanium complex, the anti-hydrolysis agent is N,N-di(2,6-diisopropylphenyl)carbodiimide, and the light stabilizer is rare earth light stabilizer The flame retardant is magnesium hydroxide.

[0066] The preparation method of the solar photovoltaic backplane is as follows:

[0067] (1) Mixing, heating, extruding, and granulating the raw materials of the outer layer PET layer according to the formula to obtain the outer layer PET modified plastic particles;

[0068] (2) Extruding the plastic particles used in the middle PET layer and the modified ...

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Abstract

The invention provides a solar energy photovoltaic backboard and a preparation method thereof; the solar energy photovoltaic backboard comprises the following 4 layers arranged in order from inside-out: a bonding film, a glue layer, an intermediate PET layer, and an outer PET layer; the outer PET layer mainly comprises the following ingredients by mass percentage contents: 50-52% PET resin, 43-46%PP resin, 0.3-0.5% anti-oxidant, 2-3% coupling stabilizing agent, 0.8-1.1% anti-hydrolysis agent, 0.6-0.8% light stabilizing agent and 0.1-0.4% fire retardant. The solar energy photovoltaic backboardhas excellent mechanical property, hydrolysis resistance and high temperature resistance, can obviously improve the UV aging performance, and has excellent flame retardation performance; the solar energy photovoltaic backboard contains no fluorine, has no fluoride pollution on environment, is simple in preparation, and suitable for industrial productions.

Description

technical field [0001] The invention belongs to the field of photovoltaic materials, and relates to a solar photovoltaic backplane and a preparation method thereof. Background technique [0002] With the increasing installed capacity of solar photovoltaic modules, the environmental protection of photovoltaic modules has attracted more and more attention. As an integral part of photovoltaic modules, solar backsheets have also drawn much attention to the recycling and environmental protection of their fluoropolymers. [0003] According to the test data of the national environmental protection department, endemic fluorosis is widely distributed in my country. According to statistics, the phenomenon of fluorosis is more serious in areas with a large installed capacity of photovoltaic modules. At present, fluoropolymer backsheets are mostly used in the manufacture of photovoltaic modules in my country. Since the polymer contains halogen elements, after the components are scrappe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/049B32B27/06B32B27/36B32B27/32B32B27/18B32B7/12B32B37/15B32B37/06B32B37/12
CPCY02E10/50
Inventor 李捷张磊杨峰
Owner CSI SOLAR POWER GROUP CO LTD