Transparent, electrically conductive, and flexible films made from multiwalled carbon nanotube/epoxy composites

被引:31
作者
Saw, L. N. [1 ]
Mariatti, M. [1 ]
Azura, A. R. [1 ]
Azizan, A. [1 ]
Kim, J. K. [2 ]
机构
[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia
[2] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
关键词
Polymer-matrix composites (PMCs); Thin films; Electrical properties; Optical properties/techniques; RESIN/HARDENER RATIO; EPOXY; FABRICATION; DISPERSION; ADHESIVES; NETWORKS; BEHAVIOR; STATE;
D O I
10.1016/j.compositesb.2012.05.048
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Optically transparent, conductive, and mechanically flexible epoxy thin films are produced in the present study. Two types of multiwalled carbon nanotubes (MWCNTs) with different aspect ratios are dispersed in epoxy resin through an ultrasonication process. The MWCNT content is varied during the preparation of the thin films. The light transmittance and electrical conductivity of the thin films are characterized. Results show that composites containing MWCNTs with a lower aspect ratio exhibit enhanced electrical conductivity compared to those with a higher aspect ratio. A sheet resistance as low as 100 Omega/sq with nearly 60% optical transparency in 550 nm is achieved with the addition of MWCNTs in epoxy. In summary, transparent, conductive, and flexible MWCNT/epoxy thin films are successfully produced, and the properties of such films are governed by the aspect ratio and content of MWCNTs. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2973 / 2979
页数:7
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