eprintid: 11602
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/16/02
datestamp: 2023-11-10 03:26:07
lastmod: 2023-11-10 03:26:07
status_changed: 2023-11-10 01:15:39
type: article
metadata_visibility: show
creators_name: Toh, M.J.
creators_name: Oh, P.C.
creators_name: Chew, T.L.
creators_name: Ahmad, A.L.
title: Antiwettability enhancement of PVDF-HFP membrane via superhydrophobic modification by SiO2 nanoparticles
ispublished: pub
note: cited By 11
abstract: Pore wetting is undesirable in the membrane gas�liquid separation process as it deteriorates the gas removal flux. To alleviate the affinity of a membrane surface toward a liquid solvent, its hydrophobicity needs to be enhanced. In this study, a superhydrophobic polyvinylidene fluoride-co-hexafluoropropylene membrane was synthesized via a simple and facile nonsolvent-induced phase inversion process. Hydrophobic nano-SiO2 particles were used as solvent additives to improve the wetting resistance of the membrane. The results revealed that blended nano-SiO2 membranes exhibited enhanced surface hydrophobicity in terms of water contact angle. Such improvement was attributed to the enhancement of surface roughness via the formation of hierarchical multilevel protrusions. Besides, the embedment of nanoparticles in polymer spherulitic globules also contributed to the reduction in surface energy of the membrane. As a result, the blended nano-SiO2 membrane achieved superhydrophobicity with a water contact angle of up to 151°. © 2019 Académie des sciences
date: 2019
publisher: Elsevier Masson SAS
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067517228&doi=10.1016%2fj.crci.2019.05.004&partnerID=40&md5=fc1b8ee983de33a29f492624e9117f42
id_number: 10.1016/j.crci.2019.05.004
full_text_status: none
publication: Comptes Rendus Chimie
volume: 22
number: 5
pagerange: 369-372
refereed: TRUE
issn: 16310748
citation:   Toh, M.J. and Oh, P.C. and Chew, T.L. and Ahmad, A.L.  (2019) Antiwettability enhancement of PVDF-HFP membrane via superhydrophobic modification by SiO2 nanoparticles.  Comptes Rendus Chimie, 22 (5).  pp. 369-372.  ISSN 16310748