The current study evaluates the mechanical properties and friction coefficient of polypropylene based composites reinforced with particulate derivatives from Entada mannii fiber. The composites were fabricated by mixing different ratios of fiber ash (FA) and fiber particulates (FP) with polypropylene matrix and compounded using compression moulding method. Tensile and flexural properties, impact strength, hardness and friction coefficient were assessed, while scanning electron microscopy (SEM) was used for structural and morphological studies of the composites. The results show that the tensile, flexural, impact and hardness properties of all the composites were enhanced in comparison with the unreinforced polypropylene. The hybrid reinforced composite composition containing FA and FP in ratio 3:1, had the best tensile, flexural, and hardness properties of all composites produced, ascribed to the achievement of a more uniform dispersion of FA/FP and stronger interface bonding with the polymer matrix. Specifically, enhancement of tensile and flexural strengths of 58.7% and 62.9%, respectively in comparison with the unreinforced propylene was obtained for this composition. The friction coefficient of the single reinforced composite compositions of FA and FP were higher compared to the hybrid reinforced composites and unreinforced polypropylene. The representative morphological assessments of the composites fracture surface showed that the single reinforced composite was characterized with the agglomeration of fiber ash/fiber particulates while the hybrid reinforced composites had relatively uniform distribution of reinforcement in the matrix.

当前的研究评估了用Entada mannii颗粒衍生物增强的聚丙烯基复合材料的机械性能和摩擦系数纤维。通过将不同比例的纤维灰（FA）和纤维微粒（FP）与聚丙烯基质混合并使用压缩成型方法进行复合来制造复合材料。评估了拉伸和弯曲性能，冲击强度，硬度和摩擦系数，同时使用扫描电子显微镜（SEM）进行了复合材料的结构和形态研究。结果表明，与未增强的聚丙烯相比，所有复合材料的拉伸，弯曲，冲击和硬度性能均得到增强。比例为3：1的FA和FP的杂化增强复合材料组合物具有所生产的所有复合材料最佳的拉伸，挠曲和硬度性能，这归因于FA / FP的分散更加均匀，并且与聚合物之间的界面粘结更牢固矩阵。具体来说，与未增强的丙烯相比，该组合物的抗张强度和弯曲强度分别提高了58.7％和62.9％。与混合增强复合材料和未增强聚丙烯相比，FA和FP单个增强复合材料组合物的摩擦系数更高。复合材料断裂表面的代表性形态学评估表明，单一增强复合材料的特征是纤维灰/纤维颗粒的团聚，而混杂增强复合材料在基质中具有相对均匀的增强分布。与混合增强复合材料和未增强聚丙烯相比，FA和FP单个增强复合材料组合物的摩擦系数更高。复合材料断裂表面的代表性形态学评估表明，单一增强复合材料的特征是纤维灰/纤维颗粒的团聚，而混杂增强复合材料在基质中具有相对均匀的增强分布。与混合增强复合材料和未增强聚丙烯相比，FA和FP单个增强复合材料组合物的摩擦系数更高。复合材料断裂表面的代表性形态学评估表明，单一增强复合材料的特征是纤维灰/纤维颗粒的团聚，而混杂增强复合材料在基质中具有相对均匀的增强分布。