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Licensed Unlicensed Requires Authentication Published by De Gruyter March 9, 2021

Mechanical, Interfacial and Thermal Properties of Silica Aerogel-Infused Flax/Epoxy Composites

R. M. Shahroze, M. Chandrasekar, K. Senthilkumar, T. Senthil Muthu Kumar, M. R. Ishak, N. Rajini, Suchart Siengchin and S. O. Ismail


The mechanical, interfacial and thermal properties of a flax/ epoxy composite incorporated with a silica aerogel (SA) at 0.5, 1.0 and 2.0 wt.% were examined in this work. A set of maximum enhancements of 8.7%, 9.0% and 24.0% in the impact, inter-laminar shear strength (ILSS) and compressive strengths were achieved by adding 0.5 wt.% SA into the flax/epoxy composites. Also, the results obtained from dynamic mechanical analysis (DMA) indicated that the damping characteristics, peak tan delta and peak loss modulus improved at all filler concentrations, while the glass transition temperature (Tg) decreased slightly. Features of SA such as biodegradability, ability to improve the mechanical properties as observed in this work and enhanced damping characteristics make them suitable for application in machine parts requiring impact resistance and vibration damping characteristics.

Muthukumar Chandrasekar, School of Aeronautical Sciences, Hindustan Institute of Technology & Science, Padur, Kelambakkam, Chennai – 603103, Tamil Nadu, India


The authors would like to thank Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia for their financial support through the grant IPS 9633800, and this research was also supported by King Mongkut’s University of Technology North Bangkok (KMUTNB), Thailand through Grant No. KMUTNB-64-KNOW-07.


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Received: 2020-03-13
Accepted: 2020-07-21
Published Online: 2021-03-09
Published in Print: 2021-03-26

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