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A kind of multi-layer packaging adhesive film for solar cells and its preparation process

A technology for solar cells and encapsulation films, applied in lamination devices, lamination, circuits, etc., to achieve the effect of improving anti-PID performance, improving insulation performance, and improving anti-PID performance

Active Publication Date: 2018-02-27
KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above inventions basically modify the EVA packaging film in terms of volume resistivity or water vapor transmission rate, and have achieved relatively good results in anti-PID, but there is still room for improvement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A multilayer encapsulation adhesive film for a solar cell is composed of three layers of adhesive films such as an EVA-EAA layer, a POE layer and an EVA-sodium polyacrylate resin mixed layer. The composition of each layer of adhesive film is as follows:

[0027] EVA-EAA layer: 40 parts of EVA (of which, the content of VA is 25%, and the melt index is 40g / 10min), 60 parts of EAA (of which, the content of AA is 19%, and the melt index is 10g / 10min), 0.1 parts of tert-butyl 2-ethylhexyl peroxide, 0.1 part of triallyl cyanurate, 0.01 part of 2-hydroxy-4-n-octyloxybenzophenone, 0.01 part of bis-2,2,6 sebacate , 6-tetramethylpiperidinol ester, 0.01 part of β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 0.01 part of γ-aminopropyl triethoxy base silane;

[0028] POE layer: 100 parts of POE (melt index 20g / 10min), 1.5 parts of tert-butyl peroxy-2-ethylhexyl carbonate, 1.5 parts of triallyl isocyanurate, 0.3 parts of 2-ethylhexyl- 4-methoxycinnamate, 0.3 part of ...

Embodiment 2

[0037] A multi-layer packaging adhesive film for solar cells, which is composed of three layers of adhesive films such as EVA-EAA layer, POE layer and EVA-sodium polyacrylate resin mixed layer. The composition of each layer of adhesive film includes: 100 parts of main resin , 1.5 parts of tert-butyl peroxy-2-ethylhexyl carbonate, 1.5 parts of triallyl isocyanurate, 0.3 parts of 2-hydroxy-4-n-octyloxybenzophenone, 0.3 parts of bis( 1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl)sebacate, 0.1β-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoic acid N-octadecanyl alcohol ester, 0.1 part of γ-methacryloxypropyl trimethoxysilane, the main resin of each layer of film is as follows:

[0038] EVA-EAA layer: 20 parts of EVA (among them, the content of VA is 40%, and the melt index is 20g / 10min), 80 parts of EAA (among them, the content of AA is 30%, and the melt index is 40g / 10min);

[0039] POE layer: 00 parts POE (melt index 40g / 10min);

[0040] EVA-sodium polyacrylate resin mixed layer: 60 ...

Embodiment 3

[0048] A multilayer encapsulation adhesive film for a solar cell is composed of three layers of adhesive films such as an EVA-EAA layer, a POE layer and an EVA-sodium polyacrylate resin mixed layer. The composition of each layer of adhesive film is as follows:

[0049] EVA-EAA layer: 30 parts of EVA (among them, VA content is 30%, melt index 35g / 10min), 70 parts EAA (among them, AA content is 25%, melt index 30g / 10min), 2 parts 2,5 -Dimethyl-2,5-bis(tert-butylperoxy)hexane, 2 parts of triallyl cyanurate, 0.15 parts of 2-ethylhexyl-4-methoxycinnamate, 0.15 A polymer of dimethyl succinate and 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol, 0.05 part of pentaerythritol bisphosphite bis(stearyl alcohol), 1 part 3-Aminopropyltrimethoxysilane;

[0050] POE layer: 100 parts of POE (melt index 40g / 10min), 3 parts of tert-butyl peroxy-2-ethylhexyl carbonate, 3 parts of triallyl isocyanurate, 0.5 parts of 2-hydroxybenzotriazole , 0.5 parts of bis(1-octyloxy-2,2,6,6-tetramethyl-4-pi...

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Abstract

The present invention proposes a multi-layer packaging adhesive film for solar cells and its preparation process, especially a multi-layer packaging adhesive film and its preparation process that can effectively improve the anti-PID performance of solar cell components, through the specific formula proposed by the present invention According to the ratio and preparation process, three kinds of adhesive films with different characteristics are combined together, and at the same time, the ion barrier, insulation, and water vapor barrier properties of the product are improved, and the anti-PID performance of the packaging adhesive film is effectively improved when used. Compared with the conventional EVA encapsulation film on the market, the anti-PID performance of the product prepared by the invention is obviously improved during use.

Description

technical field [0001] The invention relates to a multilayer packaging adhesive film for solar cells and a preparation process thereof, in particular to a multilayer packaging adhesive film capable of effectively improving the anti-PID performance of solar cell components and a preparation process thereof. Background technique [0002] With people's emphasis on environmental protection and renewable energy, solar power generation has been rapidly developed as a new type of energy, and EVA packaging film has become the current solar cell due to its excellent light transmittance, bonding performance, processing performance, etc. The main packaging material. [0003] In recent years, the potential-induced power degradation (PID) of solar cells has attracted more and more attention. According to relevant research results, it is believed that there are many possible reasons for the PID phenomenon of components, such as the grounding method of the photovoltaic inverter array, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/18B32B27/32B32B27/30B32B37/02H01L31/048
CPCY02E10/50
Inventor 李哲龙朱万育宣中旺曾作祥张勇健
Owner KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD
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