TY - JOUR
T1 - Effects of CNT diameter on mechanical properties of aligned CNT sheets and composites
AU - Nam, Tran Huu
AU - Goto, Ken
AU - Yamaguchi, Yudai
AU - Premalal, E. V.A.
AU - Shimamura, Yoshinobu
AU - Inoue, Yoku
AU - Naito, Kimiyoshi
AU - Ogihara, Shinji
N1 - Funding Information:
We appreciate financial support from the Japan Science and Technology Agency (JST) through the Advanced Low Carbon Technology Research and Development Program (ALCA) and the Institute of Space and Astronautical Science (ISAS) through the ISAS strategic development fund for space engineering.
Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.
PY - 2015/6/25
Y1 - 2015/6/25
N2 - Drawing, winding, and pressing techniques were used to produce horizontally aligned carbon nanotube (CNT) sheets from free-standing vertically aligned CNT arrays. The aligned CNT sheets were used to develop aligned CNT/epoxy composites through hot-melt prepreg processing with a vacuum-assisted system. Effects of CNT diameter change on the mechanical properties of aligned CNT sheets and their composites were examined. The reduction of the CNT diameter considerably increased the mechanical properties of the aligned CNT sheets and their composites. The decrease of the CNT diameter along with pressing CNT sheets drastically enhanced the mechanical properties of the CNT sheets and CNT/epoxy composites. Raman spectra measurements showed improvement of the CNT alignment in the pressed CNT/epoxy composites. Research results suggest that aligned CNT/epoxy composites with high strength and stiffness are producible using aligned CNT sheets with smaller-diameter CNTs.
AB - Drawing, winding, and pressing techniques were used to produce horizontally aligned carbon nanotube (CNT) sheets from free-standing vertically aligned CNT arrays. The aligned CNT sheets were used to develop aligned CNT/epoxy composites through hot-melt prepreg processing with a vacuum-assisted system. Effects of CNT diameter change on the mechanical properties of aligned CNT sheets and their composites were examined. The reduction of the CNT diameter considerably increased the mechanical properties of the aligned CNT sheets and their composites. The decrease of the CNT diameter along with pressing CNT sheets drastically enhanced the mechanical properties of the CNT sheets and CNT/epoxy composites. Raman spectra measurements showed improvement of the CNT alignment in the pressed CNT/epoxy composites. Research results suggest that aligned CNT/epoxy composites with high strength and stiffness are producible using aligned CNT sheets with smaller-diameter CNTs.
KW - A. Carbon nanotubes and nanofibers
KW - A. Polymer-matrix composites (PMCs)
KW - A. Prepreg
KW - B. Mechanical properties
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U2 - 10.1016/j.compositesa.2015.06.009
DO - 10.1016/j.compositesa.2015.06.009
M3 - Article
AN - SCOPUS:84934902229
SN - 1359-835X
VL - 76
SP - 289
EP - 298
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
ER -