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Effect of nanoclay on the mechanical and damping properties of aramid short fibre‐filled styrene butadiene rubber composites
Author(s) -
Praveen Srinivasan,
Chattopadhyay Pijush Kanti,
Jayendran Soman,
Chakraborty Bikash Chandra,
Chattopadhyay Santanu
Publication year - 2010
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2706
Subject(s) - materials science , composite material , ultimate tensile strength , aramid , elongation , viscoelasticity , styrene butadiene , composite number , natural rubber , dissipation , nanocomposite , hysteresis , dynamic mechanical analysis , polymer , fiber , styrene , thermodynamics , physics , quantum mechanics , copolymer
Abstract The effect of nanoclay loading on the alteration of tensile and dynamic mechanical properties of aramid short fibre‐filled styrene butadiene rubber composites was investigated. In all the composites, 20 phr of N330 black was used. Dynamic mechanical thermal analysis was used to investigate the viscoelastic damping at lower dynamic strains. Compressive hysteresis was evaluated to characterize higher strain static damping properties. Matrix–fibre interaction and filler distribution were investigated using morphological analyses. Matrix–filler interface, estimated by the half height width of the tan δ peak, plays a major role in energy dissipation. The matrix–fibre interaction parameter shows a similar trend with low strain tensile stress values. Nanoclay addition to the composites leads to improved elongation at break and frequency damping properties. Compressive hysteresis reflects no improvement of hysteresis with nanoclay loading. Dynamic storage moduli, matrix–fibre interaction parameter and energy dissipation properties of the short fibre‐filled composites are negatively affected by nanoclay addition. However, ultimate elongation is improved markedly on nanoclay addition. In respect of tensile strength and elongation at break values, two composite samples (KF5NC10 and KF10NC10) offer optimum properties. Copyright © 2009 Society of Chemical Industry