| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 합성 |
| 제목 |
fabrication and electrorheology of silica nanoparticle-polyaniline fiber nanocomposite |
| 초록 |
We fabricated PANI fibers (300-400nm in diameter) via an interfacial polymerization in the presence of dodecylbenzylsulfate acid as a dopant . The fibers were modified by silica nanoparticles through a modified stober method, which was confirmed by both scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images. Thermogravimetric analysis (TGA) was also used to confirm successive modification of the silica partilces on the PANI fibers. Electrorheological (ER) characteristics of pure PANI fiber and silica modified PANI fiber based ER fluids in silicone oil were tested by a rotational rhometer (MC 120) equipped with a high voltage generator. Flow curves (shear stress vs. shear rate) of the two ER fluids are much different, in which PANI fiber based ER fluid showed higher and more stable ER effect, while silica modified fiber revealed novel ER performances rather than Bingham behaviors. Howerver these flow curves were fitted well by Cho-Choi-Jhon (CCJ) model. |
| 저자 |
유영단, 최형진
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| 소속 |
인하대 |
| 키워드 |
electrorheological fluid; polyaniline; silica
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| E-Mail |
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