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- Title
Mechanical properties of carbon fiber reinforced bisphenol A dicyanate ester composites modified with multiwalled carbon nanotub.
- Authors
Mei, Hui; Xia, Junchao; Zhang, Ding; Li, Haiqing; Bai, Qianglai; Cheng, Laifei
- Abstract
A novel electrophoretic deposition (EPD) method was employed for grafting multiwalled carbon nanotubes (MWCNTs) on carbon fibers, which, after impregnation with bisphenol A dicyanate ester (BADCy), synergistically reinforced BADCy matrix composites (CNT-C/BADCy). The effect of MWCNT presence on the mechanical properties of the composites was investigated. Composite tensile strength increased by 45.2% for an EPD duration of 2 min, while flexural strength exhibited a decreasing trend with EPD duration. Optical microscopy revealed that the existence of enhanced the fiber-matrix interface while a large number of CNTs were observed to have pulled-out from the matrix, a finding which explained the observed tensile strength increase in terms of energy dissipation by the specific toughening mechanism. The flexural strength decrease of the composites with CNTs as compared to specimens without nanotubes was found linked to the increased stress concentration in the BADCy matrix due to tube presence which weakens the adhesion between carbon fabrics. In a word, carbon nanotubes will enhance the micro interface and weaken the macro interface of the composites.
- Subjects
CARBON fibers; MECHANICAL behavior of materials; BISPHENOL A; MULTIWALLED carbon nanotubes; ELECTROPHORETIC deposition; FULLERENES
- Publication
Journal of Applied Polymer Science, 2017, Vol 134, Issue 29, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/APP.45100