Influence Pre-Treatment On The Properties Of Lignocellulose Based Biocomposite

摘要

Natural fibers are gaining progressive account as a renewable, environmentally acceptable,udand biodegradable reinforcing fibre which combine acceptable mechanical properties withuda low density. The utilization of biomass (lignocelluloses) for the processing of noveludcomposites has attracted growing interest because of its eco-friendly and renewable nature.udThe major challenge for natural fibre composites is their inherent poor adhesion betweenudfibre and the matrix. In this study the lignocelluloses were treated with alkaline peroxide toudremove lignin. Treatment time, temperature and concentration were optimized on the basisudof removal of noncellulosic compound. The non-cellulose and celluloses fibres wereudblended in different ratios up to 50 wt% with polypropylene (PP) matrix using Twin-screwudextruder. Samples were prepared by using injection molding machine and tested usingudtensile, flexural and impact tester. It was found that the mechanical properties wereudimproved by the alkaline peroxide treatment of fibre. Also, elimination of lignin contentsudof fibre strongly influenced on the properties of polypropylene composite which wasudevaluated by using Scanning Electron Microscope (SEM) and Fourier Transform InfraredudSpectrophotometry (FTIR).