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Filler for solar cell module, solar cell module using same, and method for producing filler for solar cell module

A technology for solar cell components and filling materials, which is applied to electrical components, circuits, photovoltaic power generation, etc., can solve the problems of no filling material statement, and the prevention of white turbidity of filling materials has not been proposed, and achieve the effect of suppressing white turbidity

Inactive Publication Date: 2008-12-03
DAI NIPPON PRINTING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in any of the patent documents, there is no statement about preventing the cloudiness of the filling material that occurs with the generation of the hot spot phenomenon.
[0008] In addition, as a conventional filler, ethylene-vinyl acetate copolymer resin is the center as mentioned above, and the prevention of cloudiness of fillers using a copolymer resin obtained by polymerizing a silane compound for the resin has not been proposed so far.

Method used

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  • Filler for solar cell module, solar cell module using same, and method for producing filler for solar cell module
  • Filler for solar cell module, solar cell module using same, and method for producing filler for solar cell module
  • Filler for solar cell module, solar cell module using same, and method for producing filler for solar cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0130] (Preparation of silane modified resin)

[0131] For a density of 0.898g / cm 3 In 100 parts by weight of metallocene linear low-density polyethylene, 2.5 parts by weight of vinyltrimethoxysilane and 0.1 part by weight of dicumyl peroxide as a free radical generator (reaction catalyst) were mixed at 200° C. Melt and knead to obtain silane-modified resin.

[0132] (Preparation of master compound)

[0133] For crushing density 0.900g / cm 3 In 100 parts by weight of powder made of metallocene linear low-density polyethylene, 3.75 parts by weight of benzotriazole-based ultraviolet absorbers, 5 parts by weight of hindered amine-based light stabilizers, and 0.5 parts by weight of phosphorus-based heat stabilizers were mixed. parts by weight, melted and processed to obtain pelletized parent rubber.

[0134] (Production of filler materials for solar cell modules)

[0135] For 20 parts by weight of the silane-modified resin, mix 5 parts by weight of the master compound, and pol...

Embodiment 2

[0139] (Preparation of master compound)

[0140] For a density of 0.898g / cm 3 In 30 parts by weight of powder obtained by pulverizing metallocene linear low-density polyethylene, the mixing density is 0.900g / cm 3 70 parts by weight of metallocene linear low-density polyethylene, 7 parts by weight of benzotriazole-based ultraviolet absorber, 10 parts by weight of hindered amine-based light stabilizer, and 1 part by weight of phosphorus-based heat stabilizer, are melted , processing to obtain pelletized parent rubber.

[0141] (Production of filler materials for solar cell modules)

[0142] For 40 parts by weight of the silane-modified resin used in Example 1, mix 5 parts by weight of the master compound, and polyethylene as an additive with a density of 0.900 g / cm 3 60 parts by weight of metallocene linear low-density polyethylene, using the same method as in Example 1, to produce a solar cell module filler.

[0143] Furthermore, a solar cell module was fabricated by the sa...

Embodiment 3

[0145] (Preparation of master compound)

[0146] For a density of 0.896g / cm3 In 100 parts by weight of powder obtained by pulverizing metallocene linear low-density polyethylene, 3.75 parts by weight of a benzotriazole-based ultraviolet absorber, 2.5 parts by weight of a hindered amine-based light stabilizer, and a phosphorus-based thermal stabilizer 0.25 parts by weight of the agent, melted and processed to obtain pelletized parent rubber.

[0147] (Production of filler materials for solar cell modules)

[0148] For 10 parts by weight of the silane-modified resin used in Example 1, 5 parts by weight of the master compound was mixed, and the density of the polyethylene used as addition was 0.900 g / cm 3 90 parts by weight of metallocene linear low-density polyethylene, using the same method as in Example 1, to produce a solar cell module filler.

[0149] Furthermore, a solar cell module was fabricated by the same method as in Example 1.

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Abstract

Disclosed is a filler for solar cell modules which is suppressed in white turbidity in case where a hot spot phenomenon occurs. Specifically disclosed is a filler for solar cell modules comprising a filler resin containing a silane-modified resin obtained by polymerizing an ethylenically unsaturated silane compound and a polyethylene for polymerization, and a masterbatch containing an ultraviolet absorbent, a light stabilizer, a heat stabilizer and a polyethylene for masterbatch. This filler for solar cell modules is characterized in that the polyethylene for polymerization and the polyethylene for masterbatch are composed of a metallocene linear low-density polyethylene having a density within the range of 0.895-0.910 g / cm<3>.

Description

technical field [0001] The present invention relates to a filler material for a solar cell module that is less likely to become cloudy even when temperature changes occur due to, for example, a hot spot phenomenon. Background technique [0002] In recent years, solar cells as green energy sources have attracted attention due to increased awareness of environmental issues. [0003] Solar cell components are mostly made of single crystal silicon substrates or polycrystalline silicon substrates. Therefore, the solar cell element is weak against physical impact, and when the solar cell is installed outdoors, it must be protected from rain or the like. In addition, since the output power generated by one solar cell element is small, it is necessary to connect a plurality of solar cell elements in series and parallel to extract practical output power. Therefore, a plurality of solar cell elements are usually connected and sealed with a transparent substrate and a filling materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042C08J3/22
CPCC08K5/34C08L23/26C08J2323/06C08J2423/00C08L51/06H01L31/048C08F255/02C08L23/0815C08J3/226C08K5/49C08L43/04Y02E10/50C08K5/005C09D123/0892C08L2314/06Y02P20/582H01L31/0481C08L2666/06C08L2666/04C08F230/085
Inventor 大井香澄续木淳朗林克彦冈本重之吉岭幸弘丸山英治
Owner DAI NIPPON PRINTING CO LTD
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