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Modification of a Poly(tetrafluoroethylene) Porous Membrane to Superhydrophilicity with Improved Durability
Author(s) -
Liu Shijie,
Cui Suping,
Qin Zhenping,
Zhang Xuehong,
Zhao Yao,
Zhao Yingying,
Guo Hongxia
Publication year - 2019
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800271
Subject(s) - membrane , superhydrophilicity , materials science , wetting , tetrafluoroethylene , chemical engineering , filtration (mathematics) , fluorocarbon , porosity , polymer chemistry , durability , composite material , chemistry , polymer , copolymer , biochemistry , statistics , mathematics , engineering
The commercial fluorocarbon surfactant (FCS) DuPont™ Zonyl 321 fluorinated cationic surfactants, was employed to modify both flat‐sheet and hollow‐fiber poly(tetrafluoroethylene) (PTFE) porous membranes. The variation of morphology, wettability, and hydrophilicity durability to acid and alkali as well as the filtration performance of both membranes were investigated. Such superhydrophilic membranes showed better wetting stability and higher resistance to acid and alkali solutions. Moreover, both membranes exhibited good filtration performance.