Mechanical Properties Characterization of Jute Yarn Treated by Photo-curing with EG (Ethylene Glycol): Surface Treatment (KMnO4)

Abstract

Radiation-induced graft copolymerization is one of the most important methods to modify natural polymers. Jute (Corchorus capsularis) is an important natural fiber for its diversified application in eco-friendly environment. Jute is photografted with EG monomer to improve its characteristics. The different EG formulation was prepared in methanol along with 2% photoinitiator. The materials soaked in solution then radiation induced by UV processing. The highest mechanical properties of treated and untreated jute fibre like tensile strength (TS), elongation at break (Eb), and tensile modulus (Tm) were achieved with 5% EG concentration, 5 minutes soaking time and 4th pass of UV radiation intensities. The mechanical properties improvement of the jute yarns were increased at P? 0.05% on TS (2.4 MPa), Eb (1.8 MPa) and Tm (factor 2) and PL (17%) by the KMnO4. The additives urea (1% w/v) showed the best results Pl (20%), Tf (2.6) and Ef (2). Water absorption capacity of treated samples was much lower (59%) up to 20 min then stable compared to the untreated samples (70%) where absorbed up to 110 min. Weathering effect on jute yarn exhibited less loss of weight compared to control fibers. The 1R analysis revealed that EG has been grafted onto jute cellulose at the sites of -OH groups of the jute cellulose backbone. Monomer concentration; soaking time and radiation intensity were optimized with respect to mechanical properties. The remarkable changes of physico-mechanical properties were achieved by the experiment.