Fabrication and Characterization of Aluminum-Carbon Nanotube Powder and Polycarbonate/Aluminum-Carbon Nanotube Composites
- Authors
- Hwang, San Ha; Bang, Dae-Suk; Yoon, Kwan Han; Park, Young-Bin; Lee, Dae-Yeol; Jeong, Sung-Sil
- Issue Date
- Nov-2010
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- metal-carbon nanotube composite; polycarbonate; nanocomposite; electrical properties; thermal properties; rheological properties; mechanical properties
- Citation
- JOURNAL OF COMPOSITE MATERIALS, v.44, no.23, pp 2711 - 2722
- Pages
- 12
- Journal Title
- JOURNAL OF COMPOSITE MATERIALS
- Volume
- 44
- Number
- 23
- Start Page
- 2711
- End Page
- 2722
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26881
- DOI
- 10.1177/0021998310369590
- ISSN
- 0021-9983
1530-793X
- Abstract
- Carbon nanotube reinforced aluminum powders (Al-CNT) were fabricated by ball milling. The morphology observed by a scanning electron microscope showed impregnation of CNTs on the surface of aluminum flakes (Al-flakes). Polycarbonate (PC)/Al-CNT nanocomposites were prepared by a twin-screw extruder. The electrical resistivity of PC/Al-flake composites did not change with Al-flake content, while that of PC/CNT nanocomposites decreased with increasing CNT content, and the percolation threshold was obtained at 2wt% CNT loading. The electrical resistivity of PC/Al-CNT nanocomposites showed a behavior similar to PC/CNT nanocomposites. The thermal conductivity of the composites increased with increasing filler contents. The PC/Al-CNT composites showed a viscosity trend that is similar to PC/CNT composites; however, it showed higher viscosities (G*, G '') than PC/Al-flake composites in the low frequency range (up to similar to 10 Hz) and lower viscosities in the higher frequency range (>10 Hz). The tensile modulus of PC/Al-CNT composite increased while the strength decreased with increasing filler content. The modulus of PC/Al-CNT composite was higher than PC/CNT and PC/Al-flake composites.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.