Photovoltaic photo-thermal dual-curing POE packaging adhesive film and preparation method thereof

An encapsulating film and dual-curing technology, used in photovoltaic power generation, adhesives, film/sheet-like adhesives, etc. The effect of improved lamination efficiency

Active Publication Date: 2020-05-08
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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  • Photovoltaic photo-thermal dual-curing POE packaging adhesive film and preparation method thereof
  • Photovoltaic photo-thermal dual-curing POE packaging adhesive film and preparation method thereof
  • Photovoltaic photo-thermal dual-curing POE packaging adhesive film 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 photovoltaic photo-thermal dual-curing POE packaging adhesive film and a preparation method thereof. The packaging adhesive film comprises a POE polyolefin elastomer, a freeradical thermal initiator, a photoinitiator, an acrylamide assistant cross-linking agent, an acrylate assistant cross-linking agent, a light stabilizer, an antioxidant, a macromolecular coupling agent, tackifying resin, an antifoaming agent and a leveling agent. The packaging adhesive film can realize rapid low-temperature curing, has the advantages of high light transmittance, high adhesive strength, low shrinkage rate, low water permeability, no bubbles, high efficiency, low cost, easiness in reworking and the like after being laminated, and is suitable for an efficient battery assembly which is sensitive to temperature or has a high requirement for the packaging rate; compounding of POE with different melt indexes improves the fluidity, reduces the bubble rate and guarantees that glue overflowing and battery string spacing deviation do not occur; and the macromolecular coupling agent is added through a chemical grafting method, so that the long-term bonding reliability is improved.

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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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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