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High permeability three-layer co-extruded composite film and its application

A three-layer co-extrusion and composite film technology, applied in applications, other household appliances, layered products, etc., can solve the problem of increasing energy consumption and cost of photovoltaic module production, reducing production efficiency and photovoltaic power generation efficiency, and long lamination time, etc. Problems, to achieve the effect of improving production efficiency and photovoltaic power generation efficiency, improving light transmittance and photovoltaic power generation efficiency, and short lamination time

Active Publication Date: 2020-11-06
CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the lamination temperature required by the existing POE film is relatively high, the lamination time is long, and the light transmittance is lower than that of the EVA film. The cost of POE film is higher than that of EVA film, thus increasing the energy consumption of photovoltaic module production. and cost, reducing production efficiency and photovoltaic power generation efficiency

Method used

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  • High permeability three-layer co-extruded composite film and its application
  • High permeability three-layer co-extruded composite film and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] First, the polyolefin elastomer layer in the middle layer 22 adopts 96.5 kg of polyolefin elastomer particles, 0.2 kg of antioxidant, 1.2 kg of thermal initiator, 1.6 kg of cross-linking monomer, and 0.5 kg of silane coupling agent. The ethylene-vinyl acetate copolymer layer in the inner layer 21 and the outer layer 23 adopts 194.4kg of ethylene-vinyl acetate copolymer rubber particles, 0.4kg of antioxidant, 1.4kg of thermal initiator, and crosslinking monomer 2.0kg, 1.0kg of silane coupling agent, and 0.4kg of light stabilizer were prepared.

[0046] In the preparation process, the ethylene-vinyl acetate copolymer layer and the polyolefin elastomer layer are respectively added to the ethylene-vinyl acetate copolymer layer feeding cylinder and the polyolefin elastomer layer feeding cylinder, and after extrusion at 100 ° C, through the distribution Distributor distribution and co-extrusion die head, obtain three-layer co-extruded composite film, promptly prepare the desi...

Embodiment 2

[0049] First, the polyolefin elastomer layer in the middle layer 22 adopts 96.8 kg of polyolefin elastomer particles, 0.1 kg of antioxidant, 1.1 kg of thermal initiator, 1.5 kg of cross-linking monomer, and 0.4 kg of silane coupling agent. The ethylene-vinyl acetate copolymer layer in the inner layer 21 and the outer layer 23 adopts 195.8kg of ethylene-vinyl acetate copolymer rubber particles, 0.2kg of antioxidant, 1.2kg of thermal initiator, and crosslinking monomer 1.8kg, 0.8kg of silane coupling agent, and 0.2kg of light stabilizer are prepared.

[0050] In the preparation process, the ethylene-vinyl acetate copolymer layer and the polyolefin elastomer layer are respectively added to the ethylene-vinyl acetate copolymer layer feeding cylinder and the polyolefin elastomer layer feeding cylinder, and after extrusion at 100 ° C, through the distribution Distributor distribution and co-extrusion die to obtain a three-layer co-extruded composite film, that is, the desired produc...

Embodiment 3

[0053] First, the polyolefin elastomer layer in the middle layer 22 adopts 95.1 kg of polyolefin elastomer particles, 0.1 kg of antioxidant, 1.0 kg of thermal initiator, 1.0 kg of cross-linking monomer, and 0.3 kg of silane coupling agent. The ethylene-vinyl acetate copolymer layer in the inner layer 21 and the outer layer 23 adopts 196.0kg of ethylene-vinyl acetate copolymer rubber particles, 0.1kg of antioxidant, 1.3kg of thermal initiator, and crosslinking monomer 1.7kg, 0.7kg of silane coupling agent, and 0.3kg of light stabilizer are prepared.

[0054] In the preparation process, the ethylene-vinyl acetate copolymer layer and the polyolefin elastomer layer are respectively added to the ethylene-vinyl acetate copolymer layer feeding cylinder and the polyolefin elastomer layer feeding cylinder, and after extrusion at 100 ° C, through the distribution Distributor distribution and co-extrusion die to obtain a three-layer co-extrusion composite film, that is, the desired produ...

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Abstract

The invention discloses a high-permeability three-layer co-extrusion composite film and application thereof. The composite film comprises an inner layer, a middle layer and an outer layer, wherein theinner layer is an ethylene-vinyl acetate copolymer layer; the middle layer is arranged outside the inner layer and is a polyolefin elastomer layer, and the polyolefin elastomer contains the followingcomponents in percentage by weight: 92.5%-98.7% of polyolefin elastomer colloidal particles, 0.1%-1% of an antioxidant, 0.5%-2% of a thermal initiator, 0.5%-2.5% of cross-linking monomers, 0.1%-1% ofa silane coupling agent and 0.1%-1% of a light stabilizer; and the outer layer is arranged outside the middle layer and is an ethylene-vinyl acetate copolymer layer. The high-permeability three-layerco-extrusion composite film has the advantages of excellent water tightness and anti-PID performance, high permeability, relative low lamination temperature, relatively short lamination time and thelike, the production energy consumption of a photovoltaic module is reduced, the production cost of the photovoltaic module is lowered, the production efficiency and the photovoltaic power generationefficiency are improved, and the composite film can be applied to the adhesion of photovoltaic glass and battery pieces of photovoltaic cells.

Description

technical field [0001] The invention relates to a high-permeability three-layer co-extrusion composite film and the application of the high-permeability three-layer co-extrusion composite film. Background technique [0002] At present, polyolefin elastomer film (POE film) is gradually replacing ethylene-vinyl acetate copolymer film (EVA film) as the main photovoltaic packaging film due to its excellent water resistance and better anti-PID performance. However, the lamination temperature required by the existing POE film is relatively high, the lamination time is long, and the light transmittance is lower than that of the EVA film. The cost of POE film is higher than that of EVA film, thus increasing the energy consumption of photovoltaic module production. and cost, reducing production efficiency and photovoltaic power generation efficiency. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/30B32B27/32B32B7/10B32B17/10B32B27/06C08L23/00C08K5/54C08L23/08C08J5/18H01L31/048
CPCB32B7/10B32B17/064B32B27/06B32B27/08B32B27/306B32B27/32B32B2307/40B32B2307/7265B32B2457/10B32B2457/12C08J5/18C08J2323/00C08J2323/08C08K5/54H01L31/048Y02E10/50
Inventor 茹正伟周乐
Owner CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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