Organosilicone composition, reflecting coating, preparation method therefor and photovoltaic module comprising reflecting coating

A composition and silicone technology, applied in coatings, photovoltaic power generation, reflective/signal coatings, etc., can solve problems affecting coating performance, difficult construction, and low efficiency

Active Publication Date: 2017-01-11
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the characteristics of the one-component condensation type silica gel itself, its application also has the following problems: ①The deep curing is slow, and it takes more than 24 hours to cure 5mm; ②The glue is paste-like, with high viscosity, and it is difficult to control the thickness accurately during use; When the position of the coating is irregular, the construction is difficult, the consistency is poor, and the efficiency is low; ③ small mole

Method used

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  • Organosilicone composition, reflecting coating, preparation method therefor and photovoltaic module comprising reflecting coating

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preparation example Construction

[0022] The hydrogenated epoxy resin or alicyclic epoxy resin-modified hydroxyl-terminated polymethylvinylsiloxane that can be used in the present invention can be selected from commercially available products, or can be synthesized according to conventional synthesis methods. In a preferred embodiment of the present invention, the synthesis method of the above-mentioned hydrogenated epoxy resin or alicyclic epoxy resin modified hydroxyl-terminated polymethyl vinyl siloxane comprises: hydrogenated epoxy resin or alicyclic epoxy resin The epoxy resin and the hydroxyl-terminated methyl vinyl polysiloxane are reacted at 100-150° C. for 6-12 hours under the catalysis of a catalyst (such as triphenylphosphine) to obtain a reaction product.

[0023]In the synthesis of the above-mentioned hydrogenated epoxy resin or cycloaliphatic epoxy resin-modified hydroxyl-terminated polymethylvinylsiloxane, hydrogenated epoxy resins that can be used include but are not limited to hydrogenated bisp...

Embodiment 1

[0047] (1) Preparation of Hydroxyl-terminated Polymethylvinylsiloxane Modified by Hydrogenated Epoxy Resin

[0048]With 100 parts of hydrogenated bisphenol A epoxy resin (commercially purchased from CVC company model is the product of EPALLOY 5000, epoxy equivalent is 230), and 70 parts of methyl vinyl polysiloxane (commercially purchased from Anbi Subcompany model is the product of DA30, wherein the vinyl content is 0.6%), under the catalysis of triphenylphosphine, react at 120 ℃ for 9 hours to obtain the reaction product.

[0049] (2) Mixing of Component A and Component B in the organosilicon composition

[0050] Mixing of component A: with 100 parts of α, ω-divinyl polydimethylsiloxane (commercially purchased from Ambia company model VS5000 product, the content of vinyl is 0.16%, viscosity (25 ℃) is 5000CP), 10 parts of hydroxyl-terminated polymethylvinyl siloxane modified by the aforementioned hydrogenated epoxy resin, 10 parts of MQ silicone resin (commercially purchased...

Embodiment 2

[0055] (1) Preparation of hydroxyl-terminated polymethylvinylsiloxane modified by hydrogenated epoxy resin:

[0056] With 100 parts of hydrogenated bisphenol A epoxy resin (commercially purchased from CVC company model is EPALLOY 5000 product, epoxy equivalent is 230), and 200 parts of methyl vinyl polysiloxane (commercially purchased from Ambia The company model is the product of DA30, wherein the vinyl content is 0.6%), under the catalysis of triphenylphosphine, react at 120 ℃ for 9 hours to obtain the reaction product.

[0057] (2) Mixing of Component A and Component B in the organosilicon composition

[0058] Mixing of component A: 81 parts of vinyl dimethyl siloxy end-capped polydimethylsiloxane (commercially purchased from Runhe company model is RH301 product, vinyl content is 0.04%, viscosity (25 ℃) is 100000CP) and 19 parts of vinyl dimethyl siloxy end-capped polydimethylsiloxane (commercially purchased from Ambia company model is VS200 product, the content of vinyl i...

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Abstract

The invention relates to the field of preparation of photovoltaic cells and discloses an organosilicone composition, a reflecting coating, a preparation method therefor and a photovoltaic module comprising the reflecting coating. The organosilicone composition contains basic polymerization ingredients, a catalyst, a cross-linker and reflecting particles, wherein the basic polymerization ingredients, the catalyst and the cross-linker are not simultaneously mixed before use, the basic polymerization ingredients contain the ingredients in parts by weight: 100 parts of polymethyl siloxane, of which each molecule contains at least two Si-Vi bonds, 5-15 parts of hydrogenated epoxy resin or alicyclic epoxy resin modified hydroxyl-terminated polymethylvinylsiloxane and 10-20 parts of siloxane resin containing at least two Si-Vi bonds, and the cross-linker is polyorganosiloxane containing at least two Si-H bonds. According to the organosilicone composition, the adhesion of the reflecting coating can be improved while the curing time of the reflecting coating prepared from the organosilicone composition is shortened.

Description

technical field [0001] The invention relates to the field of photovoltaic cells, in particular to an organic silicon composition, a reflective coating and a preparation method thereof, and a photovoltaic module comprising the reflective coating. Background technique [0002] Photovoltaic cell modules (solar cell modules) are products that use the photovoltaic effect of semiconductors such as silicon to directly convert solar light into electrical energy through a P-N junction. In photovoltaic cell modules, when the back sheet is a transparent material, a reflective coating is usually used on the back sheet to reflect the light transmitted from the front to the back sheet back to the battery sheet to improve the utilization of sunlight, thereby improving the overall performance of the module. performance to ensure the safe and stable operation of the photovoltaic power generation system. [0003] At present, the reflective coating in the photovoltaic cell module is usually f...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L63/00C08L83/05C08K7/20C09D183/07C09D163/00C09D7/12H01L31/0216H01L31/056
CPCC09D163/00C08K7/20C08L63/00H01L31/0216H01L31/056Y02E10/52C09D7/40C09D183/04C08G77/12C08G77/20C08G77/38C08L83/00H01L31/049H01L31/0547C08G59/1494C08G77/42C08K3/36C08K2003/2241C08K2201/005C09D5/004C09D183/10
Inventor 唐富兰周维黎宪宽
Owner BYD CO LTD
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