Preparation and properties of MWCNTs/poly(acrylonitrile‐ styrene‐butadiene)/epoxy hybrid composites |
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| Authors: | P Jyotishkumar Eldho Abraham Sajeev Martin George Eldho Elias Jürgen Pionteck Paula Moldenaers Sabu Thomas |
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| Affiliation: | 1. School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, Kerala 686560, India;2. Department of Chemistry, Bishop Moore College, Mavelikkara, Kerala, 690110, India;3. Department of Polymer Reactions and Blends, Leibniz Institute of Polymer Research Dresden, 01069 Dresden, Germany;4. Department of Chemical Engineering, Catholic University of Leuven, de Croylaan 46, B‐3001, Leuven, Belgium;5. Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, Kerala 686560, India;6. Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam Selongor, Malaysia;7. Center of Excellence for Polymer Materials and Technologies, Tehnoloski park 24, 1000 Ljubljana, Slovenia |
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| Abstract: | Poly(acrylonitrile‐styrene‐butadiene) (ABS) was used to modify diglycidyl ether of bisphenol‐A (DGEBA) type epoxy resin, and the modified epoxy resin was used as the matrix for making multiwaled carbon tubes (MWCNTs) reinforced composites and were cured with diamino diphenyl sulfone (DDS) for better mechanical and thermal properties. The samples were characterized by using infrared spectroscopy, pressure volume temperature analyzer (PVT), thermogravimetric analyzer (TGA), dynamic mechanical analyzer (DMA), thermo mechanical analyzer (TMA), universal testing machine (UTM), and scanning electron microscopy (SEM). Infrared spectroscopy was employed to follow the curing progress in epoxy blend and hybrid composites by determining the decrease of the band intensity due to the epoxide groups. Thermal and dimensional stability was not much affected by the addition of MWCNTs. The hybrid composite induces a significant increase in both impact strength (45%) and fracture toughness (56%) of the epoxy matrix. Field emission scanning electron micrographs (FESEM) of fractured surfaces were examined to understand the toughening mechanism. FESEM micrographs reveal a synergetic effect of both ABS and MWCNTs on the toughness of brittle epoxy matrix. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013 |
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| Keywords: | hybrid composites volume shrinkage thermal and mechanical properties electron micrographs |
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