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Weather-resistant resin layer, laminate, and solar cell module

A technology of weather resistance and resin layer, which is applied in the direction of synthetic resin layered products, electrical components, semiconductor devices, etc., can solve the problems of easy penetration, weather resistance PET film discoloration, strength, and brittleness, etc., and achieve the inhibition of harmful substances and weather resistance And excellent water resistance, the effect of excellent water resistance

Active Publication Date: 2015-06-10
TOYO ALUMINIUM KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the laminates disclosed in the above-mentioned Patent Documents 1 and 2 have problems in that the weather-resistant PET film is discolored and its strength is lowered by exposure to ultraviolet rays.
In particular, when used as a back protection sheet for solar cells, the weather-resistant PET film becomes brittle when it is discolored by ultraviolet rays, and moisture in the outdoor air tends to permeate, or cracks occur in the brittle parts. Decreases the insulation of the solar cell back protection sheet

Method used

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  • Weather-resistant resin layer, laminate, and solar cell module
  • Weather-resistant resin layer, laminate, and solar cell module
  • Weather-resistant resin layer, laminate, and solar cell module

Examples

Experimental program
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Effect test

Embodiment 1

[0067] An acrylic polyol resin containing a copolymer of hydroxy (meth)acrylate and hydroxy (meth)acrylate was adopted so as to be 15% by mass with respect to 100% by mass of the polyurethane resin composition. In the acrylic polyol resin, these additives are mixed in such a manner that the polyurethane resin composition is 100% by mass, the epoxy resin is 0.5% by mass, the polycarbonate resin is 0.5% by mass, and the titanium oxide is 50% by mass, to prepare the main Agent.

[0068] A non-yellowing polyisocyanate as a curing agent is added to the prepared main agent to form a polyurethane resin composition. The content of the non-yellowing polyisocyanate in the polyurethane resin composition is 4 parts by weight with respect to 100 parts by weight of the main agent.

[0069] Next, a 125 μm-thick polyethylene terephthalate film (manufactured by Toyobo Co., Ltd.: brand name Toyobo Ester Film E5201) was prepared as a resin film. The polyurethane resin composition prepared as descri...

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Abstract

The present invention provides: a weather-resistant resin layer, which has excellent weather resistance and water resistance, and also has such a property that no toxic substance is generated from a waste material produced upon the disposal of the resin layer; and a laminate produced using the resin layer. Specifically, the present invention provides a weather-resistant resin layer characterized by comprising an acrylic polyol resin that comprises a (meth)acrylic acid hydroxyester and a copolymer of a (meth)acrylic acid hydroxyester.

Description

Technical field [0001] The present invention relates to a weather-resistant resin layer and laminate, and more particularly, to a weather-resistant resin layer and laminate suitable for use in a solar cell back surface protective sheet, and a solar cell module using the same. Background technique [0002] At present, in outdoor products such as solar cells such as back protection sheets for solar cells, road soundproof wall exteriors, general building materials (roofs and walls), billboards, and agricultural plastic greenhouses, weather-resistant resin layers that exhibit weather resistance are required 的Layer. As such a weather-resistant resin layer, a fluororesin film such as PVF, PVDF, or ETFE can be used. These fluororesin films exhibit excellent weather resistance, chemical resistance, and stain resistance. [0003] However, since the fluororesin film contains halogen substances, there is a problem that harmful substances are generated from waste when it is processed by incin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/40C08J7/04H01L31/042
CPCB32B27/38B32B27/08B32B27/20B32B27/308B32B27/36B32B27/365B32B2250/02B32B2264/102B32B2270/00B32B2307/7265H01L31/049Y02E10/50
Inventor 旭洋北森义信猿渡昌隆
Owner TOYO ALUMINIUM KK
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