Effect of bio-fibers and inorganic fillers reinforcement on mechanical and thermal characteristics on carbon-kevlar-basalt-innegra fiber bio/ synthetic epoxy hybrid composites

Abstract

The hybridization of plant cellulose fillers in polymeric laminates is applied in different applications because of several benefits. The present investigation deals with the fabrication of four other eight-layer laminates by reinforcing bio fillers (coir, sisal, and hemp), Titanium carbide (TiC) nanoparticles, and ranging the stacking sequence of synthetic fabrics (carbon, Kevlar, Basalt, and Innegra) with bio/synthetic epoxy from wet layup technique. The fabricated laminate's characteristics were appraised by examining density, porosity, water absorption, flexural, impact strength, shore hardness, and thermal stability. It was observed from the experimental outcomes that the 3F8LTSE (Sisal, hemp, coir fillers, 2 layers of Carbon, Kevlar, Basalt, Innegra fabrics, and Titanium carbide reinforced synthetic epoxy) composite exhibited higher mechanical characteristics with a higher flexural strength (312.58 MPa), impact strength (35.13 kJ/m2), and shore D hardness (84.95), and decreased water absorption capacity by justifying its adequate for lightweight structures. The scanning electron microscope displayed the fiber pull out, debonding, and dispersion of fillers within the matrix of the composite. The current study also evaluates the prediction and performance of the artificial neural network (ANN) to model the physical, mechanical and thermal characteristics of bio/synthetic epoxy hybrid composites. However, the ANN model was more precise and proved that it is a primary method to optimize the properties of the fabricated bio/synthetic epoxy laminate.

Keywords

• Basalt fabrics
• Coir micro-particles
• Regression analysis
• TiC nanoparticles
• Thermal stability