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Composition of double-component organosilicon photovoltaic component sealant, and preparation method thereof

A photovoltaic module, silicone technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of inapplicable bonding, aging-resistant solar photovoltaic modules, and inapplicable bonding requirements. High bond strength, long outdoor service life and good weather resistance

Active Publication Date: 2013-08-14
深圳市希顺有机硅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of the photoelectric conversion rate of green and environmentally friendly solar energy, the market demand for solar photovoltaic modules is increasing, and the assembly and integration of solar photovoltaic modules is particularly important. As a general-purpose two-component condensation sealant , can no longer be applied to the assembly and integration of solar photovoltaic modules that have special and strict requirements for bonding and aging resistance
The existing two-component condensation sealants have relatively large defects in aging resistance, UV resistance, adhesion and flame retardancy, and are not suitable for the field of photovoltaic module sealants and fields with high bonding requirements

Method used

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  • Composition of double-component organosilicon photovoltaic component sealant, and preparation method thereof
  • Composition of double-component organosilicon photovoltaic component sealant, and preparation method thereof
  • Composition of double-component organosilicon photovoltaic component sealant, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In parts by weight, mix 70 parts of 107 liquid silicone rubber (polymerization degree 800) with a viscosity of 40000mpa.s and 30 parts of 107 liquid silicone rubber (polymerization degree 90) with a viscosity of 1000mpa. 2 , 10 parts gas phase SiO 2 (specific surface area 200g / m 2 ), 10 parts of precipitated SiO 2 (specific surface area 150g / m 2 ), 50 parts of aluminum oxide, 50 parts of aluminum hydroxide, and 6 parts of hexamethylsilazane were sequentially added to the kneader at room temperature, stirred and mixed evenly, and then heated to 100 ° C for 2 hours, and finally the temperature of the material was raised to Vacuumize at 160°C for 2 hours, and keep the vacuum at -0.08Mpa to remove water, reaction by-products, and volatile low molecules in the filler. After cooling, add 80 parts of 500mpa.s hydroxyl-terminated dimethylsiloxane (polymerization degree 100) to the rubber compound for dilution, and grind it finely three times to obtain component A rubber comp...

Embodiment 2

[0032] In parts by weight, mix 30 parts of 107 liquid silicone rubber (polymerization degree 900) with a viscosity of 60000mpa.s and 70 parts of 107 liquid silicone rubber (polymerization degree 100) with a viscosity of 1500mpa.s, and add 1.2 parts of rutile TiO 2 , 20 parts gas phase SiO 2 (specific surface area 300g / m 2 ), 80 parts of aluminum hydroxide, 20 parts of silicon micropowder, and 10 parts of hexamethylsilazane were sequentially added to the kneader at room temperature, stirred and mixed evenly, then heated to 120°C for 2 hours, and finally the temperature of the material was raised to 180°C Vacuumize for 2 hours and keep the vacuum at -0.09Mpa to remove water, reaction by-products and volatile low molecules in the filler. After cooling, add 100 parts of 500mpa.s hydroxyl-terminated polydimethylsiloxane (polymerization degree 100), dilute the rubber material, and then finely grind it on a three-roll mill three times to obtain the A-component rubber material; Tri...

Embodiment 3

[0035] In terms of parts by weight, 50 parts of 107 liquid silicone rubber (polymerization degree 700) with a viscosity of 50000mpa.s and 50 parts of 107 liquid silicone rubber (polymerization degree 80) with a viscosity of 2000mpa. 2 , 15 parts gas phase SiO 2 (specific surface area 150g / m 2 ), 5 parts of precipitated SiO 2 (specific surface area 150g / m 2), 20 parts of nano-calcium carbonate, 20 parts of aluminum oxide, 20 parts of aluminum hydroxide, 50 parts of quartz powder, and 10 parts of silazane were added to the kneader at room temperature, stirred and mixed evenly, and then heated to 120 ° C for 2 hours , and then raise the temperature of the material to 170 ° C for 2 hours and keep the vacuum at -0.09Mpa to remove the moisture, reaction by-products and volatile low molecules in the filler. After cooling, add 100 parts of 450mpa.s hydroxyl-terminated polydimethylsiloxane (polymerization degree 95) to dilute the material, grind it three times on a three-roll mill t...

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Abstract

The invention relates to the polymer material, specifically to a double-component organosilicon photovoltaic component sealant. The sealant comprises a component A and a component B. The component A comprises the following materials, by weight, 30-70 parts of a first 107 silicon rubber, 30-70 parts of a second 107 silicon rubber, 1-2 parts of TiO2, 50-100 parts of hydroxyl silicone oil and 50-150parts of a filler. The component B comprises the following materials, by weight, 40-60 parts of a cross-linking agent, 30-50 parts of a tackifier, 5-10 parts of dimethyl silicon oil and 2.0-5.0 partsof a catalyst. According to the present invention, the sealant provided by the present invention has a long storage time under a room temperature condition; the surface drying time after constructionis moderate; the sealant can be rapid deep cured at the room temperature; the sealant has characteristics of high adhesive strength, good weathering resistance, long outdoor service life, aging resistance, yellowing resistance, environmental protection and the like, and is mainly applicable for the solar photovoltaic component sealing adhesion and the field with high adhesion performance requirements.

Description

technical field [0001] The invention relates to polymer materials, in particular to a composition and a preparation method of a two-component organic silicon photovoltaic module sealant. Background technique [0002] With the continuous improvement of the photoelectric conversion rate of green and environmentally friendly solar energy, the market demand for solar photovoltaic modules is increasing, and the assembly and integration of solar photovoltaic modules is particularly important. As a general-purpose two-component condensation sealant , can no longer be applied to the assembly and integration of solar photovoltaic modules that have special and strict requirements for bonding and aging resistance. The existing two-component condensation sealant has relatively large defects in aging resistance, ultraviolet resistance, adhesion and flame retardancy, and is not suitable for the field of photovoltaic module sealant and the field with high bonding requirements. Contents o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/04
Inventor 文仁光
Owner 深圳市希顺有机硅科技有限公司
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