| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Correlative Effects of CNT Length and Bulk Density on the Electrical Properties of Polycarbonate/Multiwall CNT Nanocomposites |
| 초록 |
Theoretical percolation studies have established the direct relationship of percolation threshold of CNT to the tunneling distance – which is dependent on CNT length. However, the exceptional properties of CNT cannot be manifested if the nanotubes are not well-dispersed into the polymer matrix. In this work, the combined effects of CNT length and bulk density to the electrical performance of PC/MWCNT composites were studied. Three types of multiwall carbon nanotubes with different lengths were melt-mixed with PC in a twin screw extruder followed by injection and compression molding. It was found that the electrical conductivity of the nanocomposites is dependent on both CNT length and bulk density. Longer carbon nanotubes provide shorter tunneling distance for electrons to form a conductive pathway while CNT with lower bulk density provide better dispersion which are both favorable to electrical conductivity. |
| 저자 |
손영곤, 이희영, 헤이디 크루즈
|
| 소속 |
공주대 |
| 키워드 |
carbon nanotubes; injection molding; electrical conductivity
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| E-Mail |
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