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Research Paper | Material Science and Engineering | India | Volume 5 Issue 10, October 2016
DGEBA Epoxy Nano Composite: A Study on Mechanical Properties Characterization
Manoj Kumar Shukla  | Deepak Srivastava
Abstract: Epoxy/CaCO3 nano composites were prepared by mechanical mixing of DGEBA epoxy resin having epoxide equivalent weight (EEW) of 180 g/eq and varying concentrations of nano CaCO3 ranging between 1-10 wt % followed by sonication for 30 min. The prepared Epoxy/nano CaCO3 mixtures were poured into the Teflon mold and subjected to curing at 110C for 1 hr and post curing at 80C for 5 hrs. The prepared nano composite samples were investigated for mechanical properties viz. , tensile strength, elongation-at-break and elastic modulus, impact strength and Shore D hardness. It was observed that the sample containing 5 wt % nano CaCO3 in epoxy matrix showed maximum tensile strength, elongation-at-break, the impact strength and hardness as compared to other samples and neat epoxy matrix. The samples were also investigated for curing mechanism by FTIR and DSC, for morphology by SEM.
Keywords: Epoxy matrix, nano composites, DGEBA epoxy resin, nano CaCO3, hardener
Edition: Volume 5 Issue 10, October 2016,
Pages: 1692 - 1696