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Title:
COMPOSITE SILICONE SEALANT HAVING HIGH GAS BARRIER PROPERTY AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/036427
Kind Code:
A1
Abstract:
The present invention relates to the technical field of materials, and particularly discloses a composite silicone sealant having a high gas barrier property, comprising a component A and a component B. The component A comprises, in parts by mass, 100 parts of a base rubber, 0.01-10 parts of a nanometer material powder, 40-100 parts of a filler and 5-10 parts of a silane coupling agent. The component B comprises, in parts by mass, 10-20 parts of a crosslinking agent, 10-30 parts of a plasticizer and 0.1-2 parts of a catalyst. The weight ratio of the component A to the component B is 10-13 : 1. The nanometer material powder comprises 5-10 layers of one of a graphene oxide, a modified graphene or a modified white graphene. In the present invention, the barrier property and mechanical strength of the silicone sealant can be greatly improved by adding 5-10 layers of a graphene oxide, a modified graphene or a modified white graphene in a small amount, without affecting other properties. The silicone sealant of the present invention is used for secondary sealing of hollow glasses, has good compatibility with butyl rubber used in primary sealing, has good processability and is environmentally friendly.

Inventors:
DUAN, Xidong (No. 220, Building G1 South China New Material Innovation Park, No. 31 Kefeng Road, High-tech Industrial Development Zon, Guangzhou Guangdong 0, 510670, CN)
ZHAO, Taonan (No. 220, Building G1 South China New Material Innovation Park, No. 31 Kefeng Road, High-tech Industrial Development Zon, Guangzhou Guangdong 0, 510670, CN)
MAO, Zhihao (No. 220, Building G1 South China New Material Innovation Park, No. 31 Kefeng Road, High-tech Industrial Development Zon, Guangzhou Guangdong 0, 510670, CN)
Application Number:
CN2017/098068
Publication Date:
March 01, 2018
Filing Date:
August 18, 2017
Export Citation:
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Assignee:
GUANGDONG NANOLUTION SCIENCE AND TECHNOLOGY CO., LTD. (No. 220, Building G1 South China New Material Innovation Park, No. 31 Kefeng Road, High-tech Industrial Development Zon, Guangzhou Guangdong 0, 510670, CN)
International Classes:
C09K3/10; C09J183/04; C09J183/06
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (Room 3901, No. 85 Huacheng Avenue Tianhe Distric, Guangzhou Guangdong 3, 510623, CN)
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