Journal
COMPOSITES PART B-ENGINEERING
Volume 79, Issue -, Pages 47-52Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.03.077
Keywords
Polymer-matrix composites; Fracture toughness; Surface treatments
Funding
- Ministry of Trade, Industry and Energy, Korea
- Korea Evaluation Institute of Industrial Technology (KEIT) [KIAT-TANSO-0025] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [22A20130012138] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this work, we studied the influence of surface functionality of multi-walled carbon nanotubes (MWCNTs) on the mechanical properties of basalt fiber-reinforced composites. Acid and base values of the MWCNTs were determined by Boehm's titration technique. The surface properties of the MWCNTs were determined FT-IR, and XPS. The mechanical properties of the composites were assessed by measuring the interlaminar shear stress, fracture toughness, fracture energy, and impact strength. The chemical treatments led to a change of the surface characteristics of the MWCNTs and of the mechanical interfacial properties of MWCNTs/basalt fibers/epoxy composites. Especially the acid-treated MWCNTs/ basalt fibers/epoxy composites had improved mechanical properties compared to the base-treated and non-treated MWCNTs/basalt fibers/epoxy composites. These results can probably be attributed to the improved interfacial bonding strength resulting from the improved dispersion and interfacial adhesion between the epoxy resin and the MWCNTs. (C) 2015 Elsevier Ltd. All rights reserved.
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