Mechanical, electrical, thermal and tribological behavior of epoxy resin composites reinforced with waste hemp-derived carbon fibers

Abstract Short hemp fibers, an agricultural waste, were used for producing biochar by pyrolysis at 1000 °C. The so-obtained hemp-derived carbon fibers (HFB) as filler improving the properties of epoxy resin using a simple casting and curing process. addition HFB in matrix increases storage modulus while damping factor is lowered. Also, incorporation induces remarkable increment electrical conductivity reaching up to 6 mS/m with 10 wt% loading. A similar trend also observed during high-frequency measurements. Furthermore, first time wear these composites has been studied. use efficient method reducing rate resistance friction coefficient (COF) resin. Excellent results are obtained composite containing 2.5 HFB, which COF decrease 21% 80%, respectively, compared those unfilled overall prove how common waste source can significantly wide applications proper modulation its properties. Graphical abstract