Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 55, Issue -, Pages 74-82Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2013.08.007
Keywords
Carbon fiber; Polymer-matrix composites (PMCs); Freeze drying
Funding
- National Natural Science Fund Program of China [51072130]
- Dongfeng Motor
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Carbon fiber felt with carbon nanotubes (CNTs) were prepared by immersing three-dimensional (3D) felt into CNT aqueous solution (with dispersant) followed by removing water with different drying methods. Epoxy resin was then introduced into the felt to obtain 3D fiber felt/CNTs modified epoxy composites. This paper highlights the effect of drying method on macro-morphologies of the felt, morphological dispersion of CNTs and some relevant properties of the composites, including electrical conductivity and flexural performance. The results demonstrate that compared to the commonly used heat drying method, freeze drying technique possesses obvious advantages for the fabrication of fiber felt/CNT modified epoxy composites. (C) 2013 Elsevier Ltd. All rights reserved.
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