| Abstract Scope |
This study explores the enhancement of mechanical properties in eco-friendly, biodegradable jute fibre-reinforced epoxy composites through controlled alkali surface treatment. Jute fibres (Corchorus capsularis) were used as reinforcement, with epoxy L-12 as the matrix. To improve interfacial bonding and structural integrity, raw fibres were dewaxed and treated with potassium hydroxide (KOH) at concentrations of 2 wt%, 4 wt%, 6 wt%, and 8 wt%. Composites were fabricated using the hand lay-up method with a fiber loading of 15 wt%. The effects of chemical treatment were evaluated using X-ray diffraction, Fourier-transform infrared spectroscopy, and mechanical tests (tensile, flexural, and impact). Results showed increased crystallinity and improved mechanical strength up to 6 wt% KOH, beyond which degradation occurred. The 6 wt% KOH-treated jute composites exhibited optimal performance. The outcomes of this study support the potential use of such treated natural fibre composites in lightweight structural, automotive, and packaging applications requiring sustainable material solutions. |