Radiation-Induced Grafting Polymerization of Glycidyl Methacrylate onto PVDF Membrane for Wastewater Treatment

폐수처리용 PVDF 분리막의 방사선 가교 특성 연구

  • Kim, Tak-Hyun (Industry and Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lim, Seungjoo (Industry and Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Kang, Seongjoo (R&D Institute, Asia Aero Survey) ;
  • Shin, In Hwan (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology)
  • 김탁현 (한국원자력연구원 첨단방사선연구소 공업환경연구부) ;
  • 임승주 (한국원자력연구원 첨단방사선연구소 공업환경연구부) ;
  • 강성주 ((주)아세아항측 부설연구소) ;
  • 신인환 (광주과학기술원 지구환경공학부)
  • Received : 2018.02.01
  • Accepted : 2018.03.16
  • Published : 2018.03.31

Abstract

This study examines Poly vinylidene fluorine (PVDF) membrane modification by glycidyl methacrylate (GMA) using the radiation induced graft polymerization. To evaluate the effects of GMA monomer concentrations and absorbed doses, various experimental conditions were tested in the laboratory. The morphology of membrane surface was significantly changed by increasing radiation intensity and GMA concentration. The roughness of membrane surface was decreased from 480 nm to 210 nm. The sulfonyl group and elemental sulfur on the membrane surface were analyzed using FT-IR and EDS. The concentration of elemental sulfur was increased as degree of grafting was increased. The water flux of grafted membrane showed 10 times higher than that of virgin membrane. Additionally, the grafted membrane shows good flux recovery in wastewater filtration. This result leads to the PVDF membrane was effectively functionalized by radiation-induced grafting polymerization.

Keywords

Acknowledgement

Supported by : 한국연구재단

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