High performance, freestanding and superthin carbon nanotube/epoxy nanocomposite films

Jinzhu Li, Yun Gao, Wenjun Ma, Luqi Liu, Zhong Zhang, Zhiqiang Niu, Yan Ren, Xiaoxian Zhang, Qingshen Zeng, Haibo Dong, Duan Zhao, Le Cai, Weiya Zhou, Sishen Xie

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

33 Citations (Scopus)

Abstract

We develop a facile, effective and filter free infiltration method to fabricate high performance, freestanding and superthin epoxy nanocomposite films with directly synthesized Sing-Walled Carbon Nanotubes (SWNTs) film as reinforcement skeleton. It is found that the thicknesses of the nanocomposite films can be easily controlled in the range of 0.5-3 μm by dripping target amount of acetone diluted epoxy through the skeleton film. The consequent measurements reveal that the mechanical and electrical properties of SWNTs/epoxy nanocomposite films could be tailored in a quite wide range. For examples, the Young's modulus of nanocomposite films can be tuned from 10 to 30 GPa, and the electrical conductivity can be ranged from 1000 S·cm-1 to be insulated. Moreover, high load transfer efficiency in the nanocomposite films is demonstrated by the measured ultrahigh Raman bands shift rate (-30 ± 5 cm-1/% strain) under strain. The high effective modulus is derived as 774 ± 70 GPa for SWNTs inside this nanocomposite film. © The Royal Society of Chemistry 2011.
Original languageEnglish
Pages (from-to)3731-3736
JournalNanoscale
Volume3
Issue number9
DOIs
Publication statusPublished - Sept 2011
Externally publishedYes

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