A kind of eva encapsulation adhesive film that improves the conversion power of solar modules

A technology for solar modules and encapsulation films, used in adhesives, electrical components, semiconductor devices, etc., can solve problems such as inability to effectively improve light reflectivity, large shrinkage, white overflow, etc. The effect of improving reflectivity

Active Publication Date: 2018-04-03
杭州福莱蒽特新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing adhesive film on the back of photovoltaic modules is a transparent adhesive film, which cannot effectively improve the reflectivity of light
If it is changed to a white EVA film, it is easy to produce defects such as whitening and large shrinkage during the component lamination process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An EVA encapsulation adhesive film for improving the conversion power of a solar module comprises a transparent front adhesive film and a white back adhesive film.

[0028] Its raw material composition of described positive adhesive film is as follows by mass percentage:

[0029] Cross-linking agent (tert-butylperoxycarbonate-2-ethylhexyl) 0.05%,

[0030] Auxiliary cross-linking agent (triallyl isocyanurate) 0.05%,

[0031] Coupling agent (silane coupling agent KH792) 3%,

[0032] Hydrophobic agent (modified polysiloxane, Dow Corning DC856) 2%,

[0033] Light stabilizer (light stabilizer 770) 1.5%,

[0034] Antacid (calcium stearate) 1.0%,

[0035] UV conversion agent 0.02%,

[0036] EVA resin balance.

[0037] The ultraviolet light conversion agent is formed by mixing the following raw materials in mass percentage: 6.5% calcium sulfide, 0.05% sodium sulfide, 2.5% potassium sulfide, 2% barium nitrate, 2% indium nitrate, and the balance of polymethyl methacrylate ...

Embodiment 2

[0049] An EVA encapsulation adhesive film for improving the conversion power of a solar module comprises a transparent front adhesive film and a white back adhesive film.

[0050] Its raw material composition of described positive adhesive film is as follows by mass percentage:

[0051] Crosslinker (tert-butylperoxycarbonate-2-ethylhexyl) 5%,

[0052] Co-crosslinking agent (trimethylolpropane trimethacrylate) 5%,

[0053] Coupling agent (vinyl tris(β-methoxyethoxy)silane) 0.05%,

[0054] Hydrophobic agent (modified polysiloxane, Dow Corning DC856) 0.05%,

[0055] Light stabilizer (light stabilizer 944) 0.02%,

[0056] Antacid (calcium stearate) 0.02%,

[0057] UV light conversion agent 1.0%,

[0058]EVA resin balance.

[0059] The ultraviolet light conversion agent is prepared by mixing the following raw materials in mass percentage: 4% calcium sulfide, 0.25% sodium sulfide, 5% magnesium sulfide, 1% barium sulfate, 1% strontium nitrate, and the balance of EVA resin.

[...

Embodiment 3

[0071] An EVA encapsulation adhesive film for improving the conversion power of a solar module comprises a transparent front adhesive film and a white back adhesive film.

[0072] Its raw material composition of described positive adhesive film is as follows by mass percentage:

[0073] Crosslinker (tert-butylperoxycarbonate-2-ethylhexyl) 2%,

[0074] Auxiliary cross-linking agent (compound of triallyl isocyanurate and trimethylolpropane trimethacrylate 1:1 mass ratio) 1%,

[0075] Coupling agent (silane coupling agent KH570) 0.6%,

[0076] Hydrophobic agent (modified polysiloxane, Dow Corning DC856) 1%,

[0077] Light stabilizer (compound of light stabilizer 770 and light stabilizer 622 at a mass ratio of 1:1) 0.5%,

[0078] Antacid (calcium stearate) 0.2%,

[0079] UV conversion agent 0.3%,

[0080] EVA resin balance.

[0081] The ultraviolet light conversion agent is formed by mixing the following raw materials in mass percentage: 3% calcium sulfide, 0.2% sodium sulfi...

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Abstract

The invention discloses an EVA packaging glue film with an effect of improving solar assembly transition power. The EVA packaging glue film comprises a transparent front glue film and a white back glue film. The front glue film is prepared from 0.05-5% by mass of a cross-linking agent, 0.05-5% by mass an assistant cross-linking agent, 0.05-3% by mass of a coupling agent, 0.05-2% by mass of a hydrophobic agent, 0.02-1.5 parts by mass of a light stabilizing agent, 0.02-1.0% by mass of an antacid, 0.02-1.0% by mass of a UV transition agent and the balance EVA resin. The EVA packaging glue film has a low cost, high performances and high transition power, has lasting resistance to damp and hot, UV, PID and snail cracks in a photovoltaic system and satisfies photovoltaic assembly market requirements now and forever.

Description

technical field [0001] The invention relates to the technical field of production of solar photovoltaic components, in particular to an EVA encapsulation adhesive film for improving the conversion power of solar components. Background technique [0002] Since my country launched the "Photovoltaic Leader" program in 2015, high-efficiency photovoltaic products have become the consensus of the industry and the development direction of the industry. [0003] Stimulated by the "Top Runner" plan, in the next 3-5 years, the power of modules will increase faster, and the competition among enterprises will become a healthy competition with conversion efficiency as the core. Improving the conversion efficiency and reducing the cost of electricity is the key to the further development of photovoltaics. [0004] The "Top Runner" plan promotes the improvement of the overall level of the industry from the aspects of manufacturing level, application level, standards and testing. The produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J123/08C09J11/06C09J11/08C09J11/04C09J7/30C08J3/28H01L31/048C08L23/08
CPCY02E10/50
Inventor 黄宁宏
Owner 杭州福莱蒽特新能源有限公司
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