University of Hertfordshire

  • S. M. K. Thiagamani
  • S. Krishnasamy
  • C. Muthukumar
  • J. Tengsuthiwat
  • R. Nagarajan
  • S. Siengchin
  • S. O. Ismail
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Original languageEnglish
Number of pages10
Pages (from-to)637-646
JournalInternational Journal of Biological Macromolecules
Journal publication date1 Nov 2019
Volume140
Early online date19 Aug 2019
DOIs
Publication statusE-pub ahead of print - 19 Aug 2019

Abstract

This work focuses on the fabrication of hybrid bio-composites using green epoxy as the matrix material, hemp (H) and sisal (S) fibre mats as the reinforcements. The hybrid composite with sisal/hemp fibres were fabricated by cost effective hand lay-up technique, followed by hot press with different stacking sequences. Static properties of the composites such as tensile, compressive, inter-laminar shear strengths (ILSS) and hardness were examined. The physical properties such as density, void content, water absorption and thickness swelling were also analyzed. The experimental results indicate that hybrid composites exhibited minor variation in tensile strength when the stacking sequence was altered. The hybrid composite with the intercalated arrangement (HSHS) exhibited the highest tensile modulus when compared with the other hybrid counterparts. Hybrid composites (SHHS and HSSH) offered 40% higher values of compressive strength than the other layering arrangements. HHHH sample exhibited the highest ILSS value of 4.08 MPa. Typical failure characteristics of the short beam test such as inter-laminar shear cracks in the transverse direction, micro-buckling and fibre rupture were also observed.

ID: 17230720