Lignocellulosic Natural Fiber Reinforced Bisphenol F Epoxy Based Bio-composites: Characterization of Mechanical Electrical Performance

Abstract

The current research deals with bio-composites developed by using four different types of lignocellulosic natural fibers, e.g., jute, sisal, coconut/coir, and sugarcane (bagasse) for reinforcement. A multifunctional resin derived from phosphoric acid modified Diglycidylether of bisphenol-F (DGEBF) was used as a matrix. Mechanical properties, e.g., impact strength, flexural strength, tensile strength, and modulus etc. were evaluated and analyzed. Among all the different types of samples developed, sisal and jute fiber-based composites exhibit superior tensile, impact, and flexural properties as compared to other fiber types investigated. Bagasse composites exhibit the highest specific bending performance due to lowest density. Coir and bagasse-reinforced composites show higher electrical resistivity due to lower fiber density and lower crystallinity of fibers. Relatively higher resistivity suggests application in small switches, insulation rods, mobile/laptop, and computer covers etc. The results from the developed samples demonstrate that lignocellulosic fiber-reinforced epoxy composites could open new opportunities for their applications in different electrical goods and as an environmentally friendly alternative.