Dual-layer membrane and method for preparing same

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United States of America Patent

PATENT NO 11850555
APP PUB NO 20210308627A1
SERIAL NO

17218181

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A dual-layer membrane and a method for preparing thereof. By adding a modifying monomer containing an active group and a characteristic group to a dope solution or spinning solution during the preparation of the dual-layer membrane, the grafting reaction occurs between the active group of the monomer and the polymer in the dope solution or spinning solution, and the intermolecular interaction with other polymers is enhanced by the characteristic group of the monomer, to improve the miscibility between the polymers. The method is suitable for preparing both a dual-layer flat sheet membrane and a dual-layer hollow fiber membrane, and can realize the preparation of a dual-layer membrane with an interpenetrated structure at the interface under mild preparation conditions.

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Patent OwnerAddress
NANJING TECH UNIVERSITYNO 30 PUZHU SOUTH ROAD NANJING JIANGSU 211899 NANJING CITY JIANGSU PROVINCE 211899

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fu, Zhengjun Jiangsu, CN 1 0
Shao, Dandan Jiangsu, CN 2 39
Sun, Shipeng Jiangsu, CN 1 0
Tang, Mengmeng Jiangsu, CN 3 2
Wang, Zhenyuan Jiangsu, CN 35 531
Xing, Weihong Jiangsu, CN 9 7

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