A feasible post-treatment of drying and rewetting for preparation of high-flux pluronic F127/polyethersulfone nanofiltration membranes / Yan Zhang in Industrial & engineering chemistry research, Vol. 50 N° 8 (Avril 2011)  

A feasible post-treatment of drying and rewetting for preparation of high-flux pluronic F127/polyethersulfone nanofiltration membranes [texte imprimé] / Yan Zhang, Auteur ; Su, Yanlei, Auteur ; Wenjuan Chen, Auteur . - 2011 . - pp.4678–4685.
Chimie industrielle
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp.4678–4685

Mots-clés :	Pluronic Nanofiltration membranes
Résumé :	Pluronic F127/polyethersulfone (PES) blend nanofiltration membranes were fabricated by varying polymer weight ratios of WF127/WPES in casting solutions from 0.0 to 100.0 wt %. The initial wet membranes prepared via the phase inversion method were post-treated by drying at room temperature and then immersion into water for rewetting to obtain Pluronic F127/PES nanofiltration membranes. Membrane shrinkage and swelling, cross section and surface morphologies, water uptake, surface hydrophilicity, X-ray diffraction pattern, water flux, and rejection of dyes for Pluronic F127/PES nanofiltration membranes were investigated. The introduction of Pluronic F127 into PES membranes can substantially alleviate the membrane shrinkage during drying treatment. All of the prepared Pluronic F127/PES nanofiltration membranes can completely reject Alcian blue with a molecular weight of 1299. The water permeance of Pluronic F127/PES nanofiltration membrane at WF127/WPES of 80% is as high as 176.2 L/(m2 h MPa). After long-term immersion into sodium hypochlorite solution, Pluronic F127/PES nanofiltration membranes still keep over 95.7% rejection of Alcian blue.
DEWEY :	660
ISSN :	0888-5885
En ligne :	http://pubs.acs.org/doi/abs/10.1021/ie102463k