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Korean Chemical Engineering Research,
Vol.53, No.5, 614-619, 2015
Vol.53, No.5, 614-619, 2015
감압 상태 순환유동층 반응기에서 플라즈마 그래프팅에 의한 미세입자 표면 개질
Surface Modification of Fine Particle by Plasma Grafting in a 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 폴리스 타이렌 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.
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.
Keywords:
Plasma; Surface Modification; Circulating Fluidized Bed; Polystyrene; Polyethylene Glycol; Grafting
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