Open Access

ARTICLE

Influence of Poly (vinyl butyral) Modification on the Mechanical and Thermal Properties of Kevlar Fiber Reinforced Novolac epoxy/multiwalled carbon nanotube nanocomposites

KAVITA^*, R.K. TIWARI

Defence Materials and Stores Research and Development Establishment, Kanpur 208013, India

* Corresponding Author: e-mail:

Journal of Polymer Materials 2019, 36(2), 195-205. https://doi.org/10.32381/JPM.2019.36.02.7

Abstract

The effect of poly (vinyl butyral) and acid functionalized multiwalled carbon nanotubes (f-MWCNT) on the thermal and mechanical performance of Kevlar fiber reinforced novolac epoxy nanocomposites was investigated and presented in this paper. Nanocomposite containing 1.5 wt. % poly (vinyl butyral) and 0.5 wt. % f-MWCNT exhibited best thermal and mechanical properties (except flexural strength) among all the nanocomposites reported here. It showed ~5%, 27% and 126 % improvement in tensile strength, young’s modulus and impact strength respectively as compared to the neat novolac epoxy Kevlar composite.Nanocomposite containing 0.5 wt. % f- MWCNT and 2 wt. % poly (vinyl butyral) showed best flexural strength and modulus among all the nanocomposites with increment of about 91% and 56 %.

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