Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32656
Title: High thermal conductivity of polyethylene nanowire arrays fabricated by an improved nanoporous template wetting technique
Authors: Cao, BY
Li, YW
Kong, J
Chen, H
Xu, Y
Yung, KL 
Cai, A
Keywords: Nanoporous template wetting
Polymer nanowire array
Thermal conductivity
Issue Date: 2011
Publisher: Elsevier
Source: Polymer, 2011, v. 52, no. 8, p. 1711-1715 How to cite?
Journal: Polymer (United Kingdom) 
Abstract: Generally polymer bulk structures and nanostructures are thermally insulative. In this study, we show that an improved nanoporous template wetting technique can prepare thermally conductive polymer nanowire arrays. The thermal conductivities of the fabricated high-density polyethylene (HDPE) nanowire arrays with diameters of 100 nm and 200 nm, measured by a laser flash method, are about 2 orders of magnitude higher than their bulk counterparts. The estimated thermal conductivity of a single HDPE nanowire is as high as 26.5 W/mK at room temperature. The high orientation of chains of the HDPE nanowires may arise from the integrative effects of shear rate, vibrational perturbation, translocation, nanoconfinement and crystallization. Findings in this study provide useful strategies on enhancing the intrinsic thermal properties of polymer nanostructures.
URI: http://hdl.handle.net/10397/32656
ISSN: 0032-3861
EISSN: 1873-2291
DOI: 10.1016/j.polymer.2011.02.019
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