Influence of Multiwalled Carbon Nanotubes on Mechanical,Thermal and Electrical Behavior of Polybenzoxazine-Epoxy Nanocomposites |
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| Authors: | Chinnakkannu Karikal Chozhan Ayyavu Chandramohan |
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| Affiliation: | 1. TRP Engineering College , SRM Group , Tamilnadu , India;2. Department of Chemical Engineering , Anna University , Chennai , India;3. Mechanical Engineering Program , Texas A&4. M University at Qatar, Engineering Building, Education City , Doha , Qatar |
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| Abstract: | Multiwalled carbon nanotubes (MWCNT)-reinforced polybenzoxazine-epoxy nanocomposites were prepared via the solvent method and were investigated for their thermal, thermo-mechanical, mechanical, electrical and morphological properties. Epoxy resin (DGEBA) was modified with 5, 10 and 15 wt.% of benzoxazines using 4,4′-diaminodiphenylmethane as a curing agent at appropriate conditions. Epoxy and benzoxazines-modified epoxy systems were further reinforced with 0.25, 0.50 and 0.75 wt.% of surface-modified MWCNT. MWCNT-reinforced polybenzoxazine-epoxy nanocomposites exhibited better thermal, mechanical and dielectric properties. Dispersion of MWCNT in benzoxazine-epoxy resins and nanostructure of the composites was confirmed by transmission electron microscopy analysis. |
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| Keywords: | Arc resistance Hardness Impact strength Nanocomposites Nanotubes Polybenzoxazines Thermal analysis |
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