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- Title
Development of multiwalled-carbon-nanotube-welded carbon fibers and evaluation of the interfacial strength in epoxy composites.
- Authors
Hu, Yu Fei; Wang, Biao; Zhang, Xue Na; Zhang, Jian; Zhu, Jin
- Abstract
ABSTRACT Multiwalled carbon nanotube (MWCNT)-welded carbon fibers (CFs) were prepared by a three-step process, which included polyacrylonitrile (PAN) coating, MWCNT absorption, and heat treatment. The structure of these materials was characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, and Raman spectroscopy. The MWCNTs were uniformly assembled on the surface of the PAN-coated CFs and welded by a PAN-based carbon layer after heat treatment. The contact angle of the MWCNT-welded CFs in the epoxy resins was 41.70°; this was 22.35% smaller than that of the unsized CFs. The interfacial shear strength (IFSS) of the MWCNT-welded CF-epoxy composite was 83.15 MPa; this was 28.89% higher than that of the unsized CF-epoxy composite. The increase in the IFSS was attributed to the enhancement of adhesions between the CFs and polymer matrix through the welding of the MWCNTs on the CFs. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45027.
- Subjects
MULTIWALLED carbon nanotube synthesis; PAN-based carbon fibers; EPOXY resins; SHEAR strength; HEAT treatment; COMPOSITE materials
- Publication
Journal of Applied Polymer Science, 2017, Vol 134, Issue 27, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.45027