화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터)
권호 16권 2호, p.1250
발표분야 고분자
제목 Electrical Conductivity and Electrical Percolation Thresholdof Polycarbonate/MWCNT Nanocomposites
초록 The dimensions of CNTs, such as length and external diameter, can be varied and thus so can their electrical, rheological, mechanical, and thermal properties in the polymer matrix. Two-dimensional and three-dimensional CNT networks may have good electrically conductivity and a high electromagnetic interference (EMI) shielding efficiency in polymer/CNT nanocomposites. In this work, we employed different ultrasonic methods to disperse MWCNT in a polycarbonate matrix and found that MWCNT was better dispersed when a combination of horn type and bath type sonication was used compared to application of only the horn type sonication or bath type sonication. Electrical conductivity and electrical percolation threshold of PC/MWCNT nanocomposites strongly depended on the MWCNT shape.

Acknowledgements. This work supported by a Korea University Grant.
저자 한미선1, 이윤균1, 이헌상2, 김우년1
소속 1고려대, 2동아대
키워드 carbon nanotubes; polymercomposites; electrical property
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