Abstract:
This study performed to investigate the effect of addition of 0, 01Diallyl Bisphenol A (DABA) on the thermal, mechanical, morphological and flame retardance behaviour of Novolac Phenolic/Carbon fibre composites. The miscibility of DABA and novolac phenolic resin was studied using DSC. Both modified and unmodified novolac phenolic resin were characterised for chemical structure using FTIR. TGA studies reveals that DABA modified novolac have better thermal stability. The results indicate that the appropriate content of DABA can significantly improve the mechanical properties such as the tensile strength, flexural strength, interlaminar shear strength and Impact strength of DABA modified novolac composites without compromising inherent flame retardant property. The 8 wt.% DABA modified novolac composites yielded more than 100% increase in impact strength compared to that of unmodified novolac composites. SEM studies of the tensile fractured specimens revealed that modification of novolac resulted in improved resin/fibre interfacial strength.
M.P. Sham Aan, M. Krishna, H.N. Narasimha Murthy and S.K. Rai, 2011. Thermal, Mechanical, Morphological and Flame Retardance Properties of DABA Modified Novolac/CFRP Composites. Asian Journal of Materials Science, 3: 20-30.
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