Influences of various natural fibers on the mechanical and drilling characteristics of coir-fiber-based hybrid epoxy composites

Abstract In this research, the hybrid natural fiber composite specimens were fabricated with a 64 wt% epoxy resin matrix, 20 coir fiber, and 16 of various fibers by hand-layup method. The influences (Coir, Jute, Flax, Cotton, Human Hair, Sisal, Kenaf, Calotropis) on mechanical characteristics (tensile, flexural, impact strengths) drilling properties (delamination factor ovality) Coir-fiber based have been investigated. maximum tensile strength (48.15 MPa), flexural (47.87 (2.85 kJ m −2 ) obtained Coir/Flax, Coir/Sisal, Coir/Hair Fiber materials, respectively. minimum delamination (1.0) ovality (169.4 μ m) coir/flax coir/jute when compared to other combinations specimens. drilled hole all analyzed scanning electron microscopy (SEM) images. factors Coir/Flax ovalities Coir/Jute are lower than those Coir-fiber-based composites.