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A kind of photothermal dual curing poe encapsulation adhesive film for photovoltaic and preparation method thereof

An encapsulating adhesive film and dual curing technology, which is applied in the direction of photovoltaic power generation, adhesives, films/sheets without carriers, etc., can solve the problems of easy migration and reduction of adhesion, and achieve good fluidity, less glue overflow, and energy consumption. Reduced effect

Active Publication Date: 2022-04-29
JIANGSU LUSHAN PHOTOVOLTAIC TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional POE material, because the molecular structure is polyolefin, no ester group and other polar groups, in the long-term use process, the small molecules in the adhesive film are easy to migrate to the surface of the adhesive film, resulting in a decrease in adhesion

Method used

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  • A kind of photothermal dual curing poe encapsulation adhesive film for photovoltaic and preparation method thereof
  • A kind of photothermal dual curing poe encapsulation adhesive film for photovoltaic and preparation method thereof
  • A kind of photothermal dual curing poe encapsulation adhesive film for photovoltaic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Take 27 parts of 10-15g / 10min POE, 55 parts of 30-40g / 10min POE, stir and mix evenly, then take 18 parts of 3-5g / 10min POE particles, under the condition of temperature 60°C and stirring speed 20rpm, heating and mixing for 50min to form the first mixture;

[0059]Take 5 parts of acrylamide auxiliary crosslinking agent, 7 parts of acrylate auxiliary crosslinking agent, 1 part of macromolecular coupling agent and 1 part of tackifying resin, and add them into the first mixture at a speed of 60 g / min. Under the conditions of a temperature of 60° C. and a stirring speed of 20 rpm, heat and mix for 40 minutes to form a second mixture;

[0060] The second mixture is uniformly mixed and extruded by a twin-screw granulator, and the extrusion temperature is controlled at 100 ° C. The extruded product is cooled, drawn and pelletized to make a graft masterbatch;

[0061] Take 4 parts of free radical thermal initiator, 4 parts of photoinitiator, 5 parts of light stabilizer, 1 part ...

Embodiment 2

[0063] Take 33 parts of 10-15g / 10min POE, 45 parts of 30-40g / 10min POE, stir and mix evenly, then take 22 parts of 3-5g / 10min POE particles, under the condition of temperature 60°C and stirring speed 20rpm, heating and mixing for 60min to form the first mixture;

[0064] Take 2.5 parts of acrylamide auxiliary cross-linking agent, 7 parts of acrylate auxiliary cross-linking agent, 0.5 part of macromolecular coupling agent and 0.5 part of tackifying resin, and add them into the first mixture at a speed of 60 g / min. Under the conditions of a temperature of 50° C. and a stirring speed of 20 rpm, heat and mix for 40 minutes to form a second mixture;

[0065] The second mixture is uniformly mixed and extruded by a twin-screw granulator, and the extrusion temperature is controlled at 150 ° C. The extruded product is cooled, drawn and pelletized to make a graft masterbatch;

[0066] Take 2 parts of free radical thermal initiator, 2 parts of photoinitiator, 2.5 parts of light stabiliz...

Embodiment 3

[0068] Take 42 parts of 10-15g / 10min POE, 30 parts of 30-40g / 10min POE, stir and mix evenly, then take 28 parts of 3-5g / 10min POE particles, under the condition of temperature 60°C and stirring speed 30rpm, heating and mixing for 50min to form the first mixture;

[0069] Take 0.5 part of acrylamide auxiliary cross-linking agent, 1 part of acrylate auxiliary cross-linking agent, 0.2 part of macromolecular coupling agent and 0.1 part of tackifying resin and mix them into the first mixture at a speed of 60 g / min. Under the conditions of a temperature of 50° C. and a stirring speed of 20 rpm, heat and mix for 40 minutes to form a second mixture;

[0070] The second mixture is uniformly mixed and extruded by a twin-screw granulator, and the extrusion temperature is controlled at 200 ° C. The extruded product is cooled, drawn and pelletized to make a graft masterbatch;

[0071] Take 1 part of free radical thermal initiator, 1 part of photoinitiator, 2 parts of light stabilizer, 0.2...

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Abstract

The invention discloses a photothermal dual curing POE encapsulation film for photovoltaics and a preparation method thereof. The encapsulation film comprises the following components: POE polyolefin elastomer, free radical thermal initiator, photoinitiator, acrylamide auxiliary Crosslinking agent, acrylate co-crosslinking agent, light stabilizer, antioxidant, macromolecular coupling agent, tackifying resin, defoaming agent and leveling agent. The encapsulating adhesive film of the invention can realize rapid low-temperature curing, and has the advantages of high light transmittance, high adhesive force, low shrinkage rate, low water permeability, no bubbles, high efficiency, low cost, easy rework and the like after lamination, and is suitable for For high-efficiency battery modules that are sensitive to temperature or have high requirements for packaging speed, due to the compounding of POEs with different melt indices, the fluidity is improved, the bubble rate is reduced, and at the same time, it ensures that no glue overflow and the offset of the battery string spacing occur; large The molecular coupling agent is added by chemical grafting, which improves the long-term bonding reliability.

Description

technical field [0001] The invention relates to the technical field of photovoltaic encapsulation adhesive films, in particular to a photothermal dual-curing POE encapsulation adhesive film for photovoltaics and a preparation method thereof. Background technique [0002] Photovoltaic cell high-efficiency technology has become an industry trend. As the photovoltaic industry develops towards high efficiency, more and more new battery technologies are actively emerging. Single crystal perc technology, heterojunction battery technology, perovskite battery technology, high-efficiency flexible silicon-based thin film battery technology, etc., these new technologies are simultaneously superimposed on double-sided battery technology, which significantly improves battery efficiency. [0003] Compared with traditional battery technology, high-efficiency battery technology has higher and higher requirements for component packaging while significantly increasing power. Like heterojunc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/10C09J7/30C09J151/06H01L31/048
CPCC09J7/10C09J7/30C09J151/06H01L31/0481C09J2203/322Y02E10/50
Inventor 汪加胜杨同禄唐舫成汪渝轩邵佳俊陈磊李元生宋登峰
Owner JIANGSU LUSHAN PHOTOVOLTAIC TECH
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