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Single-component silicone fluid sealant for solar energy cell assembly and manufacturing method thereof

A solar cell, silicone sealant technology, applied in electrical components, circuits, adhesives, etc., can solve problems such as affecting the appearance, water vapor mildew, etc., to prevent the growth of mold, long-term waterproof performance, and excellent adhesion. Effect

Active Publication Date: 2009-01-28
CHENGDU GUIBAO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the service life of solar modules is 20 to 30 years, so the service time of silica gel must be higher than this time. Therefore, it is imminent to develop a silicone sealant for solar cell modules that is resistant to weather and anti-yellowing, because yellowing affects Beautiful, the penetration of water vapor will cause mildew, etc.

Method used

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  • Single-component silicone fluid sealant for solar energy cell assembly and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: (1) Drying and dehydrating the vapor-phase white carbon black at 120°C for 2 hours; (2) The structural formula is 100 parts of α, ω-dihydroxy polydimethylsiloxane with n=100, 4 parts of petroleum resin, 40 parts of active calcium carbonate, 30 parts of silica powder, add it to the vacuum kneader, at a temperature of 150 ℃, vacuum It is 0.06MPa, dehydrated and blended for 30 minutes, and cooled to obtain the base material. At room temperature, add 3 parts of fumed white carbon black, 12 parts of methyl triisobutyl ketoxime silane, 5 parts of vinyl triisobutyl ketoxime silane, and 0.5 parts of γ-aminopropyl triethoxy silane, 1,3,5-Tris(trimethoxysilylpropyl) isocyanate 3 parts, dibutyl tin dilaurate 0.5 part, molecular terminal methyl polydimethylsiloxane with a viscosity of 0.5 Pa·s at 25°C 5 parts, add it to a high-speed dispersing mixer or planetary mixer equipped with base material, stir and react for 60 minutes at a vacuum degree of 0.09MPa and a rotating spe...

Embodiment 2

[0037] Example 2: (1) Drying and dehydrating the gas-phase white carbon black at 120°C for 2 hours; (2) The structural formula is 100 parts of α,ω-dihydroxy polydimethylsiloxane with n=500, 1 part of petroleum resin, 10 parts of active calcium carbonate, 70 parts of silica powder, add it into the vacuum kneader, at a temperature of 100°C and a degree of vacuum It is 0.09MPa, dehydrated and blended for 120 minutes, and cooled to obtain the base material. At room temperature, add 5 parts of fumed white carbon black, 10 parts of methyl triisobutyl ketoxime silane, 2 parts of vinyl triisobutyl ketoxime silane, 1 part of γ-aminopropyl triethoxy silane, 1,3,5-tris(trimethoxysilylpropyl) isocyanate 1 part, dibutyl tin dioctanoate 1 part, molecular terminal methyl polydimethylsiloxane 10 with a viscosity of 0.5 Pa·s at 25°C It is added to a high-speed dispersing mixer or planetary mixer equipped with a base material, and the reaction is stirred for 80 minutes at a vacuum degree of 0.07 M...

Embodiment 3

[0038] Example 3: (1) Drying and dehydrating the gas phase white carbon black at 120°C for 2 hours; (2) The structural formula is 100 parts of α,ω-dihydroxy polydimethylsiloxane with n=2000, 5 parts of petroleum resin, 30 parts of active calcium carbonate, 40 parts of silica powder, add into the vacuum kneader, temperature 150℃, vacuum degree It is 0.099MPa, dehydrated and blended for 200 minutes, and cooled to obtain the base material. At room temperature, add 1 part of fumed white carbon black, 5 parts of methyl triisobutyl ketoxime silane, 5 parts of vinyl triisobutyl ketoxime silane, 0.5 part of γ-aminopropyl triethoxy silane, 1,3,5-tris(trimethoxysilylpropyl) isocyanate 0.5 part, dibutyl tin dilaurate 1.5 part, molecular terminal methyl polydimethylsiloxane with a viscosity of 1.0 Pa·s at 25°C 1 part, add it to a high-speed dispersing mixer or planetary mixer equipped with base material, and stir for 120 minutes at a vacuum degree of 0.09MPa and a rotating speed of 400rpm to ...

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Abstract

A single component silicone sealant used for a solar module and a manufacturing method thereof are characterized in that the structural formula is as the right formula, n is equal to Alpha between 100 and 2000, according to part by weight, Omega-dihydroxyl dimethicone is 100 parts, petroresins is 1-5 parts, activated chalk is 10-40 parts, and silica micropowder is 30-70 parts, all the materials are added into a vacuum kneader and dehydrated and blended for 30-200 minutes under the conditions of the temperature of 100-150 DEG C and the vacuum degree of 0.06-0.099MPa, and the base stock is obtained after cooling; at room temperature, 1-5 parts of pyrogenic silica, 10-17 parts of crosslinkers, 1-3.5 parts of silane coupling agent, 0.5-1.5 parts of catalysts and 1-10 parts of silicone oil plasticizers, according to parts by weight, are further added into a high-speed dispersator or a planetary stirrer filled with the base stock and stirred for 30-150 minutes under the conditions of the vacuum degree of 0.06-0.099MPa and the rotating speed of 200-600rpm, thus preparing the single component silicone sealant. The single component silicone sealant has excellent weathering resistance and yellowing resistance, low moisture-vapor transmission and good storage stability.

Description

Technical field [0001] The invention relates to a single-component silicone sealant for solar cell components and a manufacturing method thereof, and belongs to the field of polymer sealing materials. Background technique [0002] Silicone polymer materials have unique properties, such as excellent weathering resistance, excellent high and low temperature resistance, good hydrophobic properties, and excellent biocompatibility. They are widely used in construction, transportation, automobiles, and electronics. , Aviation, aerospace, textiles, machinery, chemicals, medicine, personal care products (cosmetics) and other dozens of industrial sectors and daily life, play a role that other synthetic materials are difficult to replace. [0003] Due to the excellent performance of silicone rubber, it is widely used in solar cells. Chinese patent CN1464002A discloses a comb-shaped polysiloxane and the prepared electrolyte film, which can be used in dye-sensitized solar cells to replace tr...

Claims

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Application Information

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IPC IPC(8): C09J183/06H01L31/0203H01L31/048
CPCY02E10/50
Inventor 袁素兰邱泽皓王有治邹百军
Owner CHENGDU GUIBAO SCI & TECH
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