Journal
COMPOSITES PART B-ENGINEERING
Volume 43, Issue 1, Pages 95-98Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2011.04.037
Keywords
Glass fibre; Composite; Hot-press process; Interlaminar shear strength
Funding
- National Natural Science Foundation of China [51073169, 10972216, 11002141]
- State Key Laboratory of Explosion Science and Technology at the Beijing Institute of Technology [KFJJ10-3M]
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Interlaminar shear properties of fibre reinforced polymer composites are important in many structural applications. Matrix modification is an effective way to improve the composite interlaminar shear properties. In this paper, diglycidyl ether of bisphenol-F/diethyl toluene diamine system is used as the starting epoxy matrix. Multi-walled carbon nanotubes (MWCNTs) and reactive aliphatic diluent named n-butyl glycidyl ether (BCE) are employed to modify the epoxy matrix. Unmodified and modified epoxy resins are used for fabricating glass fibre reinforced composites by a hot-press process. The interlaminar shear strength (ILSS) of the glass fibre reinforced composites is investigated and the results indicate that introduction of MWCNT and BCE obviously enhances the ILSS. In particular, the simultaneous addition of 0.5 wt.% MWCNTs and 10 phr BCE leads to the 25.4% increase in the ILSS for the glass fibre reinforced composite. The fracture surfaces of the fibre reinforced composites are examined by scanning electron microscopy and the micrographs are employed to explain the ILSS results. (C) 2011 Elsevier Ltd. All rights reserved.
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