Title:
SINGLE-COMPONENT TRANSPARENT SILICONE STRUCTURAL SEALANT FOR PHOTOVOLTAICS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/040687
Kind Code:
A1
Abstract:
The present invention relates to the field of silicone structural sealants, and in particular to a single-component transparent silicone structural sealant for photovoltaics and a preparation method therefor. The single-component transparent silicone structural sealant for photovoltaics is composed of raw materials comprising the following components: α,ω-dihydroxypolydimethylsiloxane, fumed silica, a reinforcing resin, a silane coupling agent, a crosslinking agent, and a catalyst, wherein the reinforcing resin contains a linear polyphosphazene main chain, and a side chain containing an alkoxysilyl group is grafted on the linear polyphosphazene main chain. According to the present invention, polyphosphazene is introduced into the silicone structural sealant, so that the capabilities of resistance to aging and to acid and alkali impurities of the silicone structural sealant can be effectively improved, and the heat-resistant properties and the bonding properties are further improved, thereby meeting use requirements for photovoltaic products.
Inventors:
JIE ZHIQIANG (CN)
ZHU KAI (CN)
ZHU KAI (CN)
Application Number:
PCT/CN2022/123003
Publication Date:
February 29, 2024
Filing Date:
September 30, 2022
Export Citation:
Assignee:
GOLOHO POLYMER JIANGXI CO LTD (CN)
International Classes:
C09J183/04; C08G79/025; C09J11/08; C09J185/02
Domestic Patent References:
| WO2015158257A1 | 2015-10-22 |
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Other References:
FENG YUAN-BO, LIU QI, JI YI, YAN HONG-XIA: "Research progress of synthesis of polyphosphazenes and their applications in aviation", ADHESION., no. 7, 15 April 2016 (2016-04-15), pages 34 - 39, XP093142853, DOI: 1001-5922(2016)07-0034-06
GONG CHANGSHENG: "SYNTHETIC CHEMISTRY OF POLYPHOSPHAZENES", CHINA ELASTOMETRICS., no. 3, 20 September 1998 (1998-09-20), pages 57 - 63, XP093142859, DOI: 10.16665/j.cnki.issn1005-3174.1998.03.017
LEE L.-H.: "Adhesives and sealants for severe environments", INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, ELSEVIER, AMSTERDAM, NL, vol. 7, no. 2, 1 April 1987 (1987-04-01), AMSTERDAM, NL , pages 81 - 91, XP093142860, ISSN: 0143-7496, DOI: 10.1016/0143-7496(87)90093-5
GONG CHANGSHENG: "SYNTHETIC CHEMISTRY OF POLYPHOSPHAZENES", CHINA ELASTOMETRICS., no. 3, 20 September 1998 (1998-09-20), pages 57 - 63, XP093142859, DOI: 10.16665/j.cnki.issn1005-3174.1998.03.017
LEE L.-H.: "Adhesives and sealants for severe environments", INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, ELSEVIER, AMSTERDAM, NL, vol. 7, no. 2, 1 April 1987 (1987-04-01), AMSTERDAM, NL , pages 81 - 91, XP093142860, ISSN: 0143-7496, DOI: 10.1016/0143-7496(87)90093-5
Attorney, Agent or Firm:
ZHEJIANG KG IP LAW FIRM (CN)
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