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Polyolefin film for backboard of photovoltaic cell and preparation method thereof

A photovoltaic cell and polyolefin film technology, applied in photovoltaic power generation, chemical instruments and methods, applications, etc., can solve problems such as additive precipitation, achieve the effects of improving color spots, improving compatibility, and ensuring long-term performance

Inactive Publication Date: 2019-07-05
CYBRID TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a polyolefin film for a photovoltaic battery backplane and a preparation method thereof, the obtained polyolefin film for a photovoltaic battery backplane has good adhesion to EVA, and improves The compatibility of materials and additives solves the problem of additive precipitation under hot and humid conditions

Method used

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  • Polyolefin film for backboard of photovoltaic cell and preparation method thereof
  • Polyolefin film for backboard of photovoltaic cell and preparation method thereof
  • Polyolefin film for backboard of photovoltaic cell and preparation method thereof

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Embodiment 1

[0067] The polyolefin film for the photovoltaic cell backboard of the present embodiment is a single-layer structure, which is the side connecting layer 1 of the EVA adhesive film. In parts by mass, the side connecting layer 1 of the EVA adhesive film comprises the following components: 25 parts of polypropylene, polyethylene 55 parts, 5 parts of polypropylene grafted maleic anhydride, 15 parts of titanium dioxide, 0.8 parts of light stabilizer, 0.5 parts of antioxidant, and the thickness is 200 μm.

[0068] Among them, the light stabilizer is bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, the antioxidant is 0.3 parts of phenolic antioxidant, 0.2 part of phosphite antioxidant Oxygen mixture.

[0069] The preparation method of the polyolefin film for the photovoltaic cell backboard of this embodiment includes the following steps: firstly, uniformly mix each raw material resin and auxiliary agent in a high-speed mixer, and then granulate through a twin-screw extruder, and the ...

Embodiment 2

[0072] The polyolefin film for the photovoltaic cell backboard of this embodiment has a two-layer structure, including an EVA adhesive film side connection layer 1 and a water blocking layer 2, wherein,

[0073] In terms of parts by mass, the side connection layer 1 of the EVA film contains the following components: 25 parts of polypropylene, 55 parts of polyethylene, 5 parts of polypropylene grafted maleic anhydride, 15 parts of titanium dioxide, 0.8 parts of light stabilizer, antioxidant 0.5 part of agent, and its thickness is 40 μm. Among them, the light stabilizer is bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, the antioxidant is 0.3 parts of phenolic antioxidant, 0.2 part of phosphite antioxidant Oxygen mixture.

[0074] In parts by mass, the water blocking layer 2 contains the following components: 35 parts of polypropylene, 65 parts of polyethylene, 0.2 part of light stabilizer, 0.5 part of antioxidant, and its thickness is 160 μm. Among them, the light stabilizer...

Embodiment 3

[0078] The polyolefin film for the photovoltaic cell backboard of this embodiment has a three-layer structure, including an EVA adhesive film side connection layer 1, a skeleton layer 3 and an air side weatherproof layer 4, wherein,

[0079] In terms of parts by mass, the side connection layer 1 of the EVA film contains the following components: 25 parts of polypropylene, 55 parts of polyethylene, 5 parts of polypropylene grafted maleic anhydride, 15 parts of titanium dioxide, 0.8 parts of light stabilizer, antioxidant 0.5 parts of agent, the thickness is 40μm. Among them, the light stabilizer is bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, the antioxidant is 0.3 parts of phenolic antioxidant, 0.2 part of phosphite antioxidant Oxygen mixture.

[0080] In parts by mass, the skeleton layer 3 contains the following components: 75 parts of polypropylene, 10 parts of polyethylene, 15 parts of POE, 0.2 parts of light stabilizer, 0.5 parts of antioxidant, and the thickness is 16...

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Abstract

The invention provides a polyolefin film for the backboard of a photovoltaic cell and a preparation method thereof. The polyolefin film comprises an EVA coating lateral connection layer, which comprises following components in parts by weight: 20 to 40 parts of polypropylene, 50 to 60 parts of polyethylene, 1 to 10 parts of grafting modified polyolefin, 10 to 20 parts of titanium dioxide, 0.5 to 1.5 parts of a light stabilizer, and 0.1 to 1 part of an antioxidant. The preparation method is simple, and a prepared photovoltaic cell backboard has the advantages that the binding force between polyolefin film and EVA is good, the compatibility between a base material and an aid is improved, and the aid will not be precipitated out under hot and wet conditions.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic battery backplane film, and relates to a polyolefin film and a preparation method thereof, in particular to a polyolefin film for a photovoltaic battery backplane and a preparation method thereof, in particular to a polyolefin film with high adhesion to an encapsulating adhesive film A polyolefin film for a photovoltaic battery backplane and a preparation method thereof. Background technique [0002] As an important packaging material for solar cells, the backsheet of solar photovoltaic cells protects and supports the cells, and has reliable aging resistance, barrier properties and insulation properties. Common photovoltaic backsheets generally have a five-layer structure. From top to bottom, they are the inner layer of the backsheet, the adhesive layer, the PET layer, the adhesive layer, and the outermost protective layer. The inner layer of the backsheet is generally made of fluorine-...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L51/06C08K13/02C08K3/22C08K5/3435C08J5/18B32B27/08B32B27/32B32B27/20B32B27/34B32B33/00B32B7/12H01L31/049H01L31/048
CPCB32B7/12B32B27/08B32B27/20B32B27/32B32B27/34B32B33/00B32B2250/24B32B2270/00B32B2307/206B32B2307/714B32B2457/12C08J5/18C08J2323/06C08J2323/12C08J2351/06C08K5/3435C08K13/02C08K2003/2241H01L31/0481H01L31/049Y02E10/50
Inventor 韩晓航王磊郑亚陈洪野吴小平
Owner CYBRID TECHNOLOGIES INC
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