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Structure and Performance of Poly(vinylidene chloride‐ co ‐vinyl chloride) Porous Membranes with Different Additives
Author(s) -
Liu Hailiang,
Chen Kaikai,
Chen Xin,
Xiao Changfa,
Zhao Wei,
Chu Zhiyong
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.201800304
Subject(s) - membrane , biofouling , chemical engineering , polyethylene glycol , materials science , fouling , chloride , peg ratio , vinyl chloride , solvent , filtration (mathematics) , porosity , polymer , nanoparticle , polymer chemistry , chemistry , composite material , organic chemistry , copolymer , biochemistry , statistics , mathematics , finance , economics , engineering , metallurgy
Abstract Poly(vinylidene chloride‐ co ‐vinyl chloride) (P(VDC‐ co ‐VC) membranes were prepared by non‐solvent‐induced phase separation and adjusted by adding water‐soluble polyethylene glycol (PEG) and water‐insoluble silicon dioxide (SiO 2 ) hydrophilic nanoparticles. The structure of pores and antifouling performance were investigated to illustrate the effect of these nanoparticles. The cross section of the P(VDC‐ co ‐VC) membrane exhibited more macropores and the typical finger‐like pores turned into more vertically interconnected ones with increasing PEG content, while the number and size of finger‐like pores became less with increasing SiO 2 content. Considering the filtration and antifouling experiments, the presence of hydrophilic PEG and SiO2 nanoparticles in the P(VDC‐co‐VC) polymer matrix improved the membrane performance in terms of high flux, high BSA rejection ratio, and fouling resistance.