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Sealing composition, multilayer glass and solar cell panel

A sealing composition, a technology for solar cells, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as reduced power generation efficiency, insufficient durability, and reduced insulation, preventing the reduction of power generation efficiency and excellent shape followability , the effect of preventing performance degradation

Active Publication Date: 2011-12-14
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for this sealing material, additional time for heating and cooling is required.
[0008] In addition, when the other panel is assembled, since the sealing material is melted due to the high temperature heating when the sealing material made of EVA is laminated, the sealing material seeps out from the edge of the panel, and droplets are generated, which will cause future problems. Poor condition of contamination such as seals
[0009] In addition, since the sealant composition proposed in Japanese Patent Laid-Open No. 10-110072 easily absorbs water due to water or moisture, etc., the insulating properties are reduced.
In addition, this sealant composition has insufficient durability against active light rays such as ultraviolet rays, and if exposed to such light for a long time, the insulating properties will be reduced
Therefore, the electricity generated in the solar panel is easily leaked, so there is a disadvantage in that the power generation efficiency is lowered.

Method used

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  • Sealing composition, multilayer glass and solar cell panel
  • Sealing composition, multilayer glass and solar cell panel
  • Sealing composition, multilayer glass and solar cell panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3 and comparative example 1～7

[0143] Put the ingredients listed in Table 1 into a kneader (DS1-5GHB-E type, 1L kneader, equipped with a 6-inch open mixer, manufactured by MORIYAMA Corporation) at one time according to the formula in Table 1, and knead at 120°C , formulate the sealing composition as a knead.

[0144] Then, the obtained kneaded product was calender-molded with a calender (calender 4L-8a, manufactured by Hitachi, Ltd.) to a thickness of 0.75 mm and a thickness of 1.0 mm, respectively, to obtain a sealing material containing the sealing composition. In addition, the rolling conditions of the calender are such that the temperature of the rolls is adjusted to 30 to 90° C., and the temperature of the downstream roll (R′) arranged on the downstream side in the conveying direction with respect to the roll speed (R) of the upstream roll is adjusted. The ratio (R' / R) was adjusted to 1.1.

[0145] Thereafter, a release film is laminated on one side of the sealing material, and wound up in a roll (ref...

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Abstract

A sealing composition containing a rubber component and polyolefin, wherein the rubber component contains butyl rubber and polyisobutylene having a viscosity average molecular weight in the range of 500,000 to 3,000,000, the mixing ratio of the rubber component to 100 parts by weight of the total amount of the rubber component and the polyolefin is in the range of 40 to 90 parts by weight, and the sealing composition contains 0 to 30 parts by weight of a hygroscopic compound with respect to 100 parts by weight of the total amount of the rubber component.

Description

technical field [0001] The present invention relates to a sealing composition, a multilayer glass and a solar cell panel, and more specifically, to a sealing composition used for sealing various industrial products, a multilayer glass and a solar cell whose ends are sealed with the sealing composition panel. Background technique [0002] It is well known that in various industrial products, sealing materials are provided at the ends in order to prevent fluids such as water and moisture from intruding into the interior. [0003] As such a sealing material, for example, a sealing material containing polyisobutylene having a viscosity average molecular weight of 50,000 to 90,000 and an inorganic filler has been proposed (for example, refer to JP-A-2006-117758). In addition, JP 2006-117758 A proposes to use a sealing material for a solar panel. [0004] When the sealing material proposed in Japanese Patent Application Laid-Open No. 2006-117758 is provided at the end of the sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/10C08L23/22C08L23/20C08L23/06C08L23/12C08L23/16C08K3/36C08K3/22C03C27/10H01L31/048
CPCY02E10/50C08L23/22C09J123/22H01L31/0481C08L23/06C08L57/02C08L2205/025C08L2205/03C08L2205/035C08L2666/06
Inventor 藤井浩喜多贺哲朗满冈由明
Owner NITTO DENKO CORP
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