Packaging adhesive film for solar cell module

A solar cell and encapsulation adhesive film technology, which is applied in the direction of electrical components, circuits, adhesives, etc., can solve problems such as the decrease of the interface between EVA and glass, the safety hazard of solar cell components, and the inability to effectively solve the PID phenomenon, etc., to achieve an excellent layer Interadhesion, improved service life, high adhesion effect

Active Publication Date: 2013-12-04
乐凯胶片股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The packaging material of solar cell modules can provide protection for solar cell modules. However, the widely used packaging material is ethylene-vinyl acetate copolymer (EVA) with a single-layer structure. In a long-term high-temperature and high-humidity environment, EVA is easily hydrolyzed damage, resulting in a significant decrease in the adhesion between EVA and glass interface, resulting in potential safety hazards in solar cell modules
In addition, solar cell modules have been used

Method used

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  • Packaging adhesive film for solar cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1 part by weight of silane-grafted LDPE (SX522A: CM401 from AEI Compounds), 65 parts by weight of vinyl POE (EXACT5062 from ExxonMobil, melting peak is 43°C), 35 parts by weight of ethylene-α-olefin Block copolymer (INFUSE9000 of DOW chemical company, the melt flow rate measured under the condition of 190 ℃ 2.16kg is 0.5g / 10min) and the additive of 1.5 parts by weight are fully mixed to form the material of polyolefin adhesive layer; 60 Parts by weight of vinyl POE (TAFMER DF940 from Mitsui Chemicals, melting peak is 77°C), 40 parts by weight of ethylene-α-olefin block copolymer (INFUSE9530 from DOW Chemical Company, measured at 190°C under 2.16kg The melt flow rate is 5g / 10min) and 1.5 parts by weight of additives are fully mixed to form the material of the polyolefin barrier layer; according to the thickness of the polyolefin adhesive layer of 10 μm and the thickness of the polyolefin barrier layer of 180 μm, the material after mixing the two layers Two extruders are ...

Embodiment 2

[0042] 30 parts by weight of silane-grafted MDPE (SX720: CM488 from AEI Compounds), 95 parts by weight of vinyl POE (ENGAGE8401 from DOW Chemical, melting peak is 80°C), 5 parts by weight of ethylene-α-olefin block Copolymer (INFUSE9530 of DOW Chemical Company, the melt flow rate measured under the condition of 190 ℃ 2.16kg is 5g / 10min) and 1.5 parts by weight of additives are fully mixed to form the material of polyolefin adhesive layer; 90 parts by weight of Vinyl POE (EXACT5062 of Exxon Mobil, the melting peak is 43°C), 10 parts by weight of ethylene-α-olefin block copolymer (INFUSE9000 of DOW Chemical Company, the melt flow measured under the condition of 190°C 2.16kg speed is 0.5g / 10min) and 1.5 parts by weight of additives are fully mixed to form the material of the polyolefin barrier layer; according to the thickness of the polyolefin adhesive layer of 50 μm and the thickness of the polyolefin barrier layer of 400 μm, the mixed material of the two layers is used in two ...

Embodiment 3

[0044] 5 parts by weight of silane-grafted LLDPE (LINKLON XLE815N from Mitsubishi Chemical Corporation), 75 parts by weight of vinyl POE (DF710 from Mitsui Chemicals, melting peak at 59°C), and 25 parts by weight of ethylene-α-olefin block copolymerization The material (INFUSE9100 of DOW chemical company, the melt flow rate measured under the condition of 190 ℃ 2.16kg is 1g / 10min) and 1.5 parts by weight of additives are fully mixed to form the material of polyolefin bonding layer; 60 parts by weight of ethylene Based POE (EXACT5062 of Exxon Mobil, the melting peak is 43°C), 40 parts by weight of ethylene-α-olefin block copolymer (INFUSE9000 of DOW Chemical Company, the melt flow rate measured under the condition of 190°C 2.16kg 0.5g / 10min) and 1.5 parts by weight of additives are fully mixed to form the material of the polyolefin barrier layer; according to the thickness of the polyolefin adhesive layer of 10μm and the thickness of the polyolefin barrier layer of 400μm, the mi...

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Abstract

The invention discloses a packaging adhesive film for a solar cell module. The packaging adhesive film for the solar cell module comprises a blocking layer, a first adhesive layer and a second adhesive layer, wherein the first adhesive layer and the second adhesive layer are located at the two sides of the blocking layer, the blocking layer is a polyolefin blocking layer containing ethylene-a-olefin polymer. The adhesive film is good in blocking performance and capable of effectively avoiding the PID phenomenon of the solar cell module under the high-pressure, damp and hot environment, the adhering performance between the packaging adhesive film and a glass substrate and between the packaging adhesive film and a cell sheet is good, and the service life of the solar cell module is prolonged.

Description

technical field [0001] The invention belongs to the field of photovoltaic new energy materials, and relates to an encapsulating adhesive film for solar cell components. Background technique [0002] The packaging material of solar cell modules can provide protection for solar cell modules. However, the widely used packaging material is ethylene-vinyl acetate copolymer (EVA) with a single-layer structure. In a long-term high-temperature and high-humidity environment, EVA is easily hydrolyzed Destruction, resulting in a significant decrease in the bonding between EVA and glass interface, resulting in potential safety hazards in solar cell modules. In addition, solar cell modules have been used in a high-voltage environment for a long time, and wet leakage current channels are easily generated between packaging materials, backplanes, glass, and frames. The performance is greatly attenuated, that is, the PID phenomenon. [0003] The Chinese patent with the application number C...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J123/08H01L31/048
CPCY02E10/50
Inventor 范云峰徐晓龙郑凯王莉
Owner 乐凯胶片股份有限公司
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