Novel silica membrane for packaging solar cell module and preparation method

A technology of solar cells and silicone films, which is applied in the direction of electrical components, circuits, adhesives, etc., can solve the problems of uneven coating of adhesives and complex use processes, and achieve uneven coating, simple and convenient use, excellent high and low temperature resistance sexual effect

Inactive Publication Date: 2017-10-13
CHANGZHOU CHIKE PHOTOELECTRICITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes a silica gel film for solar cell packaging and a preparation method thereof. Compared with EVA film, the silica gel film has strong adhesive force, good light transmittance, and more excellent high and low temperature resistance (-50~ 250°C), excellent heat and humidity resistance, and aging resistance; compared with organic silica gel adhesives, the silica gel film effectively solves the problems of uneven coating of the adhesive and complex use process. Uniform, easy to store and transport, simple and convenient to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Mix 15 parts of methyl MQ silicone resin, 10 parts of epoxy-modified silicone resin, 20 parts of methyl silicone oil, and 20 parts of methyl hydroxy silicone oil, and stir for 1-2 hours until the resin is completely dissolved in the silicone oil. Add 10 parts of curing agent hydroxyl hydrogen-containing silicone oil, 2 parts of catalyst titanate, and 5 parts of reinforcing agent fumed silicon, and continue to stir for 10-15 minutes to mix evenly to obtain a film-forming glue. Then the above glue, according to 80g / m 2 The amount of glue applied is applied on the PET substrate using a scraper coating equipment. At a temperature of 120-160°C, heat for 3 minutes to solidify and form a film. Using this method, a silica gel membrane with a thickness of 0.3 mm can be prepared. After 2000 hours of high temperature and high humidity aging and 1000 hours of UV lamp accelerated aging, the silicone mold has no debonding, no bubbles, and no discoloration; the peel stren...

Embodiment 2

[0021] Example 2: 15 parts of vinyl MQ silicone resin, 15 parts of methyl transparent silicone resin and 40 parts of ethyl silicone oil were stirred for 1-2 hours until the resin was completely dissolved in the silicone oil. Add 10 parts of curing agent ethyl hydrogen-containing silicone oil, 2 parts of catalyst titanate, 2 parts of reinforcing agent fumed silicon, and 2 parts of silicon dioxide, continue stirring for 10-15 minutes, and mix evenly to obtain a film-forming glue. Then the above glue, according to 100g / m 2 The amount of glue applied is applied on the PET substrate using a scraper coating equipment. At a temperature of 120-160°C, heat for 3 minutes to solidify and form a film. Using this method, a silica gel membrane with a thickness of 0.5 mm can be prepared. After 2000h of high temperature and high humidity aging and 1000h of accelerated aging by ultraviolet light, the silicone mold has no debonding, no bubbles, and no discoloration; the peeling strength with ...

Embodiment 3

[0022] Example 3: 15 parts of methyl transparent silicone resin, 15 parts of epoxy modified silicone resin and 40 parts of methyl hydroxy silicone oil were stirred for 1-2 hours until the resin was completely dissolved in the silicone oil. Add 10 parts of curing agent methyl hydrogen-containing silicone oil, 2 parts of catalyst titanate, and 4 parts of reinforcing agent fumed silicon, continue stirring for 10-15 minutes, mix well, and obtain a film-forming glue. Then the above glue, according to 120g / m 2 The amount of glue applied is applied on the PET substrate using a scraper coating equipment. At a temperature of 120-160°C, heat for 3 minutes to solidify and form a film. Using this method, a silica gel film with a thickness of 0.6mm can be prepared.

[0023] After 2000h of high temperature and high humidity aging and 1000h of accelerated aging by ultraviolet light, the silicone mold has no debonding, no bubbles, and no discoloration; the peeling strength with glass is gre...

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Abstract

The invention relates to a novel silica membrane for packaging a solar cell module and a preparation method. The preparation method of the silica membrane comprises the following steps: dissolving 15 to 50 parts of silicone resin into 30 to 50 parts of silicone oil, and adding 5 to 15 parts of curing agent, 0.5 to 1 part of catalyst and 1 to 10 parts of reinforcing agent, and preparing a membrane forming rubber solution; and smearing the rubber solution onto a base material by utilizing a smearing device, and heating and curing for 1 to 5 min at 120 to 160 DEG C to form a membrane. The silica membrane prepared by the invention is used for packaging a solar cell, and compared with the traditional EVA rubber membrane, the ultraviolet permeability and aging resistance are higher, and the high temperature and low temperature resistance and the adhesive property are excellent.

Description

technical field [0001] The invention belongs to the field of preparation of novel material silica gel films, and in particular relates to a novel silica gel film for packaging solar cell components and a preparation method thereof. Background technique [0002] With the rapid growth of solar cells, the research and development of related materials and technologies is becoming more and more important. Since the working environment of the solar cell module is mainly outdoors, and it is required that the cells cannot be directly exposed to natural conditions such as sunlight and rain, the packaging of the solar cell is particularly important. At present, the packaging of solar energy mainly adopts good light transmittance, excellent anti-ultraviolet and aging resistance, good adhesion, and elastic adhesive layer to encapsulate solar cells, and upper protective material (front plate), lower protective material ( Backsheet) bonded together to form a solar panel. [0003] In the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J183/04C09J183/06C09J183/07C09J11/04C09J11/06H01L31/048
CPCC08K2201/014C08L2203/204C08L2205/02C08L2205/025C08L2205/035C09J7/00C09J11/04C09J11/06C09J183/04C09J183/06H01L31/0481C08L83/06C08L83/04C08K5/10C08K3/36Y02E10/50
Inventor 蔡秀娟王学刚
Owner CHANGZHOU CHIKE PHOTOELECTRICITY TECH CO LTD
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