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Filler for solar cell module, solar cell module using same

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 preventing white turbidity of filling materials that have not been proposed, and achieve the effect of suppressing white turbidity

Inactive Publication Date: 2011-03-23
DAI NIPPON PRINTING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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
  • Filler for solar cell module, solar cell module using same
  • Filler for solar cell module, solar cell module using same

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, 0.1 part by weight of dicumyl peroxide as a radical generator (reaction catalyst) were mixed, and the temperature was 200 ° C. Melt and knead to obtain a 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 absorber, 5 parts by weight of hindered amine-based light stabilizer, and 0.5 parts by weight of phosphorus-based thermal stabilizer are mixed parts by weight, and then melted and processed to obtain a pelletized master compound.

[0134] (Production of filler material for solar cell module)

[0135] To 20 parts by weight of the silane-modified resin, 5 parts by weight of the mas...

Embodiment 2

[0139] (Preparation of master compound)

[0140] For a density of 0.898g / cm 3 In 30 parts by weight of the powdered 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 thermal stabilizer, and melted , processing to obtain a pelletized master compound.

[0141] (Production of filler material for solar cell module)

[0142] To 40 parts by weight of the silane-modified resin used in Example 1, 5 parts by weight of the master batch was mixed, and the density of polyethylene for addition was 0.900 g / cm 3 60 parts by weight of metallocene straight-chain low-density polyethylene, using the same method as Example 1, to prepare a filler material for solar cell modules.

[0143] Furthermore, the solar cell module was produced by...

Embodiment 3

[0145](Preparation of master compound)

[0146] For a density of 0.896g / cm 3 3.75 parts by weight of benzotriazole-based ultraviolet absorber, 2.5 parts by weight of hindered amine-based light stabilizer, and phosphorus-based thermal stabilizer 0.25 parts by weight of the agent was melted and processed to obtain a pelletized master compound.

[0147] (Production of filler material for solar cell module)

[0148] To 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 polyethylene for 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 prepare a filler material for solar cell modules.

[0149] Furthermore, the solar cell module was produced by the same method as 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 ultravioletabsorbent, 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 a temperature change occurs due to, for example, a hot spot phenomenon. Background technique [0002] In recent years, due to an increase in awareness of environmental issues, solar cells have attracted attention as green energy sources. [0003] Solar cell elements are mostly made of monocrystalline silicon substrates or polycrystalline silicon substrates. Therefore, the solar cell element is weak against physical impact, and in the case of installing the solar cell outdoors, it is necessary to protect it 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 substra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/042C08J3/22
CPCC08F255/02C08L51/06C08K5/49C08L2314/06Y02E10/50C08L23/0815C08K5/34C08J2323/06H01L31/048C09D123/0892C08L23/26C08L43/04C08J3/226C08K5/005C08J2423/00Y02P20/582H01L31/0481C08L2666/06C08L2666/04C08F230/085
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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