Physical, mechanical, and electrical conductivity characteristics of coconut shell-based H3PO4-Activated carbon/epoxy nanocomposites
Rudi Dungani, Pingkan Aditiawati, Eka Mulya Alamsyah, Trimurti Hesti Wardani, Sasa Sofyan Munawar, Widya Fatrıasarı
Abstract
This study examined the physical, mechanical, and electrical conductivity properties of coconut shell-based activated carbon (AC-CS) activated with H 3 PO 4 composite. The AC-CS was incorporated as a filler in epoxy composites at concentrations of 1 %, 2 %, and 5 %. The addition of nanostructured AC-CS notably affected the mechanical and electrical characteristics of the epoxy nanocomposites. Microcracks, matrix cracks, particle-bridging cracks, and steady-state cracks, were observed. The starting voltage for the AC-CS filler-reinforced epoxy composites was above 0.00 V, with a maximum voltage threshold of 100 V. The epoxy composites with 5 % AC-CS displayed an almost linear current-voltage relationship.