Effect of stearic acid treatment on the properties of aligned short hemp fibre mats and their potential use as reinforcement in polypropylene matrix composites

The article investigates the impact of stearic acid vapour treatment on aligned short hemp fibre mats and their potential as reinforcement in polypropylene matrix composites. The study addresses the challenge of moisture absorption in natural fibre composites, which limits their application. By employing stearic acid treatment, the researchers aim to enhance interfacial bonding and mechanical performance. The article presents a comprehensive experimental methodology, including fibre mat production, stearic acid treatment, composite manufacturing, and extensive testing. The results show that stearic acid treatment significantly improves the hydrophobicity of fibre surfaces and enhances the tensile strength and thermal stability of the composites. The study concludes that stearic acid treatment is a promising and cost-effective method for improving the performance of natural fibre composites.