Preparation of Composite Reinforced Agent Based on Sweet Sorghum Stalk Fiber through Alkali Pressure Steam Treated Method

Increasing global concern to environmental issues and sustainability related preservation of non-renewable natural resources has encouraged research develop new friendly materials products based on renewable resources. Sorghum fiber potential be a composite reinforcement because it good mechanical properties, inexpensive. The preparation process sorghum is needed improve its compatibility with polypropylene (PP). Thermal alkalization the method used in conducting preparation. In this study, alkalization-thermal treatment 0%, 5% 10% NaOH pressurized steam for 1 3 minutes was carried out change hydrophobicity fiber. most optimum result obtained at concentration pressure-soaking, showing cleaner fibrillated morphology FESEM testing. It less lignin hemicellulose content as indicated by FTIR testing result, better through Sessil Drop that showed contact angle 120.9◦, well significant increase crystallinity index 6.3% X-Ray Diffraction (XRD) test result. modified polymer matrix.