Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Surface Modification of Fine Particle by Plasma Grafting in a Circulating Fluidized Bed Reactor under Reduced Pressure

감압 상태 순환유동층 반응기에서 플라즈마 그래프팅에 의한 미세입자 표면 개질

  • Park, Sounghee (Department of Energy Engineering, Woosuk University)
  • 박성희 (우석대학교 에너지공학과)
  • Received : 2014.12.09
  • Accepted : 2014.12.15
  • Published : 2015.10.01
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Abstract

A plasma surface modification of powders has been carried out in a circulating fluidized bed reactor under reduced pressure. Polystyrene (PS) particles treated by plasma are grafted with polyethylene glycol (PEG) on the surface. The virgin, plasma-treated and grafted powders were characterized by DPPH method, FTIR, SEM and contact angle meter. The plasma-treated PS powders have well formed peroxide on the surface, By PEG grafting polymerization, PEG is well grafted and dispersed on the surface of the plasma-treated PS powders. The PEG-g-PS particle was successfully synthesized using the plasma circulating fluidized bed reactor under reduced pressure.

미세입자의 플라즈마 표면 개질을 감압상태하의 순환유동층 반응기에서 수행하였다. 플라즈마에 의해 처리된 폴리스타이렌 입자는 폴리에틸렌글리콜로 표면에 그래프팅하였다. 표면 개질 전 입자와 플라즈마 처리된 입자 그리고 그래프팅된 입자의 특성은 각각 DPPH 방법, FTIR, SEM 그리고 접촉각 측정으로 분석하였다. 플라즈마 처리된 폴리스타이렌 입자의 표면에 과산화물이 잘 형성되었다. 또한, 폴리에틸렌글리콜의 그래프팅 중합에 의해 플라즈마 처리된 입자 표면에 그래프팅이 잘 분산되었다. 따라서 감압상태의 순환 유동층 반응기에서 플라즈마 처리에 의한 PEG-g-PS 입자를 성공적으로 형성할 수 있었다.

Keywords

References

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