Premium
Improvement of Surface Properties of Poly(propylene) Hollow Fiber Microporous Membranes by Plasma‐Induced Tethering of Sugar Moieties
Author(s) -
Yu HaiYin,
Hu MengXin,
Xu ZhiKang
Publication year - 2005
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200500053
Subject(s) - contact angle , membrane , microporous material , x ray photoelectron spectroscopy , tethering , chemical engineering , materials science , chemistry , fiber , polymer chemistry , composite material , biochemistry , operating system , computer science , engineering
Summary: Hydrophobic poly(propylene) hollow fiber microporous membranes (PPHFMMs) were surface‐modified by nitrogen plasma‐induced tethering of α ‐allyl glucoside (AG). Their antifouling characteristics in a submerged membrane bioreactor (SMBR) were investigated. The chemical composition of the modified and unmodified PPHFMMs was characterized by X‐ray photoelectron spectroscopy (XPS). Water contact angle was measured by the sessile drop method. Results of XPS clearly indicated that sugar moieties could be tethered on the membrane surface. Water contact angle on the modified membrane showed a minimum value of 64°, approximately 64° lower than that on the unmodified membrane. After continuous operation in a SMBR for about 160 h, the flux recovery, the reduction of flux and the relative flux ratio for the modified PPHFMMs were 17.8% higher, 5.1% lower and 140% higher than those of the nascent one, respectively.Schematic representation of plasma‐induced tethering of α ‐allyl glucoside on a PPHFMM surface.