화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.18, No.1, 25-30, March, 2006
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Role of surfactant on damping performance of polyaniline based electrorheological suspension
Ji Woo Kim, Chul Am Kim, Hyoung Jin Choi†, and Seung Bok Choi1
  • Dept. of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea
  • 1Dept. of Mechanical Engineering, Inha University, Incheon 402-751, Korea
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To enhance the stability of dispersed polyaniline (PANI) particles in a silicone oil system, a nonionic surfactant was adopted, and its effect on the electrorheological (ER) performance was investigated under an applied electric field. In the presence of a nonionic surfactant, the PANI based ER fluid exhibited not only an improved sedimentation stability based on the estimated sedimentation ratio but also an enhanced maximum yield stress behavior. Furthermore, the surfactant added ER suspension was applied to an ER damper system, and its damping performance was compared with the ER suspension without a surfactant.
Keywords:surfactant;electrorheological fluid;yield stress;polyaniline
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