학회 | 한국화학공학회 |
학술대회 | 2002년 봄 (04/26 ~ 04/27, 강원대학교) |
권호 | 8권 1호, p.1961 |
발표분야 | 이동현상 |
제목 | 폴리피롤 현탁액의 전기유변 특성 |
초록 | The electrorheological (ER) response and dielectric properties of the polypyrrole (PPy) dispersions in mineral oil were investigated. Various PPy particles were synthesized controlling the amount of oxidant and surfactant to investigate the effect of these variables on the ER response. The ER response increases with the oxidant and surfactant amount, passes through a maximum, and then decreases with the oxidant and surfactant amount. However, the decrease in the ER response at large surfactant amounts is not so significant compared to that at large oxidant amounts. The increase in the ER response with the oxidant and surfactant amount arises from the enhanced particle polarization originated from the increased PPy conductivity. The decrease in the ER response at large oxidant amounts seems to arise from the increased conduction between the PPy particles, while that at large surfactant amounts arises from the decreased particle polarization. |
저자 | 송인철, 김영대 |
소속 | 전남대 |
키워드 | Electrorheology; polypyrrole |
원문파일 | 초록 보기 |