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Vibration damping characteristics of short hemp fibre thermoplastic composites
Journal article   Peer reviewed

Vibration damping characteristics of short hemp fibre thermoplastic composites

A Etaati, S Sbdanan Mehdizadeh, H Wang and Selvan Pather
Journal of Reinforced Plastics and Composites, Vol.33(4), pp.330-341
2014
DOI: https://doi.org/10.1177/0731684413512228
url
https://doi.org/10.1177/0731684413512228View
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Abstract

vibration damping short hemp fibre
In this project, free vibration testing and dynamic mechanical analysis methods were used to study the damping properties of noil hemp fibre-reinforced polypropylene composites with varying fibre contents (0 to 60 wt%) and compatibilizers (maleic anhydride-grafted polypropylene and maleic anhydride-grafted polyethylene octane) under applied frequencies of 1 to 200 Hz. The storage modulus of the composites was increased by the increase in hemp fibre content. However, the maximum damping ratio was obtained from the composite with 30 wt% noil hemp fibre. The addition of coupling agents reduced the damping capacity of all composites. However, 30 wt% noil hemp fibre-reinforced polypropylene coupled with 2.5 wt% anhydride-grafted poly ethylene octane revealed the highest damping ratio among coupled composites. Damping properties of the composites were relatively constant over the frequency range, except at frequencies which the material-instrument system began to resonate and peaks were observed in the curves.

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Domestic collaboration
International collaboration
Web Of Science research areas
Materials Science, Composites
Polymer Science
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