화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
HWAHAK KONGHAK, Vol.40, No.3, 316-323, June, 2002
Export Citation
AEO 비이온 계면활성제/Cosurfactant/물/오일 시스템의 상거동에 관한 연구
Phase Behavior Study in Systems Containing AEO Nonionic Surfactant, Cosurfactant, Water, and Oil
고현길, 이종기, 박소진1, 박병덕2, 홍종규3, 박상권3, 임종주3, †
  • 애경종합기술원, 대전 300-200
  • 1충남대학교 화학공학과, 대전 305-764
  • 2네오팜 화학공학과, 대전 305-333
  • 3동국대학교 화학공학과, 서울 100-715
Hyun-Kil Ko, Jong-Ki Lee, So-Jin Park1, Byeong-Deog Park2, Jong-Kyu Hong3, Sang-Kwon Park3, and Jong-Choo Lim3, †
  • Aekyung Industrial Co., LTD., Daejeon 300-200, Korea
  • 1Department of Chemical Engineering, ChoongNam National University, Daejeon 305-764, Korea
  • 2Department of Chemical Engineering, NeoPharm, Daejeon 305-333, Korea
  • 3Department of Chemical Engineering, Dongguk University, Seoul 100-715, Korea
E-mail:
초록
본 연구에서는 AEO계 비이온 계면활성제, 물, D-리모넨의 3성분으로 이루어진 시스템 및 cosurfactant를 첨가할 경우에 대한 상평형 실험을 수행하였다. 비이온 계면활성제, D-리모넨, 물로 이루어진 3성분 시스템에 대한 상평형 실험 결과에 의하면 middle-phase 마이크로에멀젼(microemulsion, μE)이 excess water와 excess oil 상들과 평형을 이루는 3상은 형성되지 않거나 매우 적은 영역에서 형성되었으며, 생성된 단일상의 μE 구조는 전기전도도 측정으로부터 W/O μE으로 판명되었다. 또한 cosurfactant로서 butyl diglycol(BDG), butyl triglycol(BTG)을 첨가한 결과, cosurfactant 첨가량을 증가시킴에 따라 middle-phase μE을 포함한 3상이 생성되는 온도는 감소하였고 3상이 존재하는 온도 범위는 증가하였다. Microemulsion을 사용하여 비극성 오일인 abietic acid, triolein과 윤활유에 대한 가용화 실험을 수행한 결과, W/O μE의 가용화력이 가장 크게 나타났으며, cosurfactant를 첨가할 경우 계면장력이 낮아짐에 따라 가용화도는 증가하였다.
In this study, phase behavior study was performed for ternary systems containing AEO nonionic surfactant, water and D-limonene as a function of surfactant concentration and temperature. The results in the ternary systems showed that a three phase region containing a middle-phase microemulsion(μE) in equilibrium with excess water and excess oil phase was not found or formed over a very limited small region. On the other hand, addition of butyl diglycol(BDG) and butyl triglycol(BTG) as cosurfactants lowered the temperature for the formation of a three phase region including a middle-phase μE and produced a three phase region over a wide range of temperatures. The solubilization experiments for abietic acid, triolein, and lubricant using three different types of μEs showed that the maximum oil removal was achieved with a water-in-oil(W/O) μE in all cases. Addition of a cosurfactant promoted the solubilization mainly due to a decrease in interfacial tension.
Keywords:Phase Behavior;Nonionic Surfactant;Cosurfactant;Microemulsion;Solubilization;Interfacial Tension
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