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Dual-component silicone sealant for solar photovoltaic components and preparation method thereof

A solar photovoltaic and silicone sealant technology, applied in photovoltaic power generation, chemical instruments and methods, adhesives, etc., to achieve the effects of reducing loss, good adhesion and improving production efficiency

Active Publication Date: 2012-11-07
湖北雨虹兴发新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone rubber has excellent electrical insulation, high and low temperature resistance, ozone resistance and radiation resistance. In recent years, it has been widely used in aviation, aerospace, electronics and electrical fields. Foreign countries have begun to use silicone rubber as solar energy since the 1960s. Adhesives for photovoltaic modules. At present, most of the silicone rubber adhesives for solar photovoltaic modules are single-component room temperature vulcanized silicone rubber, and there are few reports on the application of two-component room temperature vulcanized silicone rubber to solar photovoltaic modules.

Method used

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  • Dual-component silicone sealant for solar photovoltaic components and preparation method thereof
  • Dual-component silicone sealant for solar photovoltaic components and preparation method thereof
  • Dual-component silicone sealant for solar photovoltaic components and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Add 100 parts of α, ω-dihydroxypolysiloxane, 5 parts of polydimethylsiloxane, 100 parts of active nano-calcium, 20 parts of fumed silica, 0.01 part of magnesium hydroxide, and 1 part of titanium dioxide into the In a high-speed mixer, dehydrate at a temperature of 90°C and a vacuum of 0.1 MPa for 4 hours, and obtain component A after cooling.

[0044] 0.5 parts of polytriethoxysiloxane, 1 part of 3-glycidylpropyltrimethoxysilane, 1 part of N-(β-aminoethyl)-α-aminopropyltrimethoxysilane, γ-ammonia Add 1 part of methyltriethoxysilane, 0.5 part of methylvinylbis(N-methylacetamido)silane, 2 parts of propyl titanate, and 1 part of dibutyltin dilaurate into a closed container, After mixing evenly, component B is prepared.

[0045] Mix the above-mentioned components A and B according to the weight ratio A:B=100:8, and defoam for 5 minutes at a vacuum degree of 0.1Mpa to obtain a two-component silicone sealant. The product performance test results are shown in Table 1.

Embodiment 2

[0047] Add 100 parts of α, ω-dihydroxy polysiloxane, 30 parts of polydimethylsiloxane, 70 parts of silicon micropowder, 10 parts of precipitated silica, 10 parts of aluminum hydroxide, and 10 parts of titanium dioxide into the high-speed In a mixer, dehydrate at a temperature of 120°C and a vacuum of 0.06MPa for 3 hours, and obtain component A after cooling.

[0048] 8 parts of methyl orthosilicate, 0.2 parts of N-(β-aminoethyl)-α-aminopropyltrimethoxysilane, 1 part of dimethylbis(N-methylacetamido)silane, titanate Add 3 parts of chelate compound and 2 parts of dioctyltin dilaurate into an airtight container, and mix well to prepare component B.

[0049] The above-mentioned components A and B are mixed uniformly according to the weight ratio A:B=100:10, and the two-component silicone sealant is obtained after defoaming at a vacuum degree of 0.08Mpa for 10 minutes. The product performance test results are shown in Table 1.

Embodiment 3

[0051] 100 parts of α, ω-dihydroxypolysiloxane, 50 parts of polydimethylsiloxane, 110 parts of silicon powder, 90 parts of superfine calcium carbonate, 1 part of zinc borate, and 0.01 parts of surface-modified fumed silica Add 0.01 part of titanium dioxide into a high-speed mixer, dehydrate at a temperature of 150°C and a vacuum of 0.09Mpa for 0.5 hours, and obtain component A after cooling.

[0052] 10 parts of ethyl orthosilicate, 0.5 parts of 3-glycidylpropyltrimethoxysilane, 1 part of γ-methacryloxypropyltrimethoxysilane, N-(β-aminoethyl)-α -2 parts of aminopropyltrimethoxysilane, 1.5 parts of γ-aminomethyltriethoxysilane, 0.05 part of methylvinylbis(N-methylacetamido)silane, 0.1 part of dibutyltin diacetate Add it into an airtight container and mix well to get component B.

[0053] The above-mentioned components A and B are mixed uniformly according to the weight ratio A:B=100:15, and the two-component silicone sealant is obtained after defoaming at a vacuum degree of 0....

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PUM

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Abstract

The invention discloses dual-component silicone sealant used in solar photovoltaic components and a preparation method thereof. The preparation method comprises the following steps: adding alpha, omega-dihydroxy polysiloxane, polydimethylsiloxane, filler, inorganic flame retardant, reinforcing filler and titanium pigment into a high-speed stirrer to perform dehydration for 0.5 to 4 hours at the temperature of between 90 and 150 DEG C at a vacuum degree of 0.06 to 0.1 MPa and cooling the product of the dehydration to prepare A component; adding crosslinking agent, silane coupling agent, chain extender and catalyst into a closed container and stirring the mixture uniformly to obtain B component; and uniformly mixing A and B components according to a ratio equal to 100:8-15 and defoaming themixture at a vacuum degree of 0.06 to 0.1 MPa for 10 to 30 minutes to obtain the dual-component silicone sealant for solar photovoltaic components. The dual-component silicone sealant prepared by themethod has the advantages of strong binding power, quick deep solidification, high yellowing resistance and high price-to-performance ratio and is time-saving and labor-saving when used in photovoltaic component sealing and applicable to seal photovoltaic components.

Description

technical field [0001] The invention relates to a polymer sealing material, in particular to a two-component silicone sealant for solar photovoltaic modules and a preparation method thereof. Background technique [0002] Energy plays a pivotal role in global economic development and social progress. The soaring prices of fossil energy such as oil, coal, and natural gas, the depletion of resources, and climate disasters caused by global climate change have forced people to look for renewable energy. As one of the future energy development directions, solar energy is the fastest growing energy industry in the world. With the support of governments of various countries, the photovoltaic power generation industry has developed rapidly since the 1980s. The average annual growth rate of the photovoltaic power generation industry in the past 10 years is 30%, and the average annual growth rate in the past 5 years is 40%. In recent years, under the environment that the country advo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/04C09J11/06C09J11/08C09K3/10H01L31/0203H01L31/048
CPCY02E10/50
Inventor 陈世龙
Owner 湖北雨虹兴发新材料有限公司
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