Surface antifouling modification on polyethylene filtration membranes by plasma polymerization

An Li Hou, Szu Yi Wang, Wen Pin Lin, Wei Hsuan Kuo, Tsung Jen Wang, Meng Jiy Wang

Research output: Contribution to journalArticlepeer-review

Abstract

Surface modification on microporous polyethylene (PE) membranes was facilitated by plasma polymerizing with two hydrophilic precursors: ethylene oxide vinyl ether (EO1V) and diethylene oxide vinyl ether (EO2V) to effectively improve the fouling against mammalian cells (Chinese hamster ovary, CHO cells) and proteins (bovine serum albumin, BSA). The plasma polymerization procedure incorporated uniform and pin-hole free ethylene oxide-containing moieties on the filtration membrane in a dry single-step process. The successful deposition of the plasma polymers was verified by Fourier-transform infrared (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) analyses. Water contact angle measurements and permeation experiments using cell and protein solutions were conducted to evaluate the change in hydrophilicity and fouling resistance for filtrating biomolecules. The EO1V and EO2V plasma deposited PE membranes showed about 1.45 fold higher filtration performance than the pristine membrane. Moreover, the flux recovery reached 80% and 90% by using deionized (DI) water and sodium hydroxide (NaOH) solution, indicating the efficacy of the modification and the good reusability of the modified PE membranes.

Original languageEnglish
Article number5020
Pages (from-to)1-13
Number of pages13
JournalMaterials
Volume13
Issue number21
DOIs
Publication statusPublished - Nov 2020

Keywords

  • Diethylene oxide vinyl ether (EO2V)
  • Ethylene oxide vinyl ether (EO1V)
  • Non-fouling materials
  • Plasma polymerization
  • Polyethylene microfiltration membrane
  • Surface modification

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Surface antifouling modification on polyethylene filtration membranes by plasma polymerization'. Together they form a unique fingerprint.

Cite this