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논문 기본 정보
- 자료유형
- 동향자료
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 86 - 92 (7page)
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Multi-walled carbon nanotube (MWCNT)/polycarbonate (PC) nanocomposite was prepared by direct melt mixing to investigate the effect of the shear rate on the surface resistivity of the nanocomposites. In this study, an experiment was carried out to observe the shear induced orientation of the MWCNT in the polymer matrix using a very simple melt flow indexer with various loads. The compression-molded, should be eliminated. MWCNT/PC nanocomposite sample exhibited lower percolation thresholds (at 0.8 vol%) and higher electrical conductivity values than those of samples extruded by capillary and injection molding. Shear induced orientation of MWCNT was observed via scanning electron microscopy, in the direction of flow in a PC matrix during the extrusion process. The surface resistivity rose with increasing shear rate, because of the breakdown of the network junctions between MWCNTs. For real applications such as injection molding and the extrusion process, the amount of the MWCNT in the composite should be carefully selected to adjust the electrical conductivity.
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참고문헌 (33)
참고문헌 신청
Sumio Iijima / 1991 / Helical microtubules of graphitic carbon / Nature 354(6348):56~58
Micah J. Green / 2009 / Nanotubes as polymers / Polymer 50(21):4979~4997
Fan-Long Jin / 2011 / A review of the preparation and properties of carbon nanotubes-reinforced polymer compositess / Carbon Letters 12(2):57~69
Bing-Xing Yang / 2008 / Enhancement of the mechanical properties of polypropylene using polypropylene-grafted multiwalled carbon nanotubes / Composites Science and Technology 68(12):2490~2497
Milo S. P. Shaffer / 1999 / Fabrication and Characterization of Carbon Nanotube/Poly(vinyl alcohol) Composites / Advanced Materials 11(11):937~941
Micah J. Green / 2009 / Nanotubes as polymers / Polymer 50(21):4979~4997
Fan-Long Jin / 2011 / A review of the preparation and properties of carbon nanotubes-reinforced polymer compositess / Carbon Letters 12(2):57~69
Bing-Xing Yang / 2008 / Enhancement of the mechanical properties of polypropylene using polypropylene-grafted multiwalled carbon nanotubes / Composites Science and Technology 68(12):2490~2497
Milo S. P. Shaffer / 1999 / Fabrication and Characterization of Carbon Nanotube/Poly(vinyl alcohol) Composites / Advanced Materials 11(11):937~941
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