ABSTRACT

In the present work, an attempt was made to improve the mechanical properties of the coir fiber reinforced epoxy composites through addition of high strength sisal and palmyra palm fibers. The hybrid composites were fabricated using compression molding technique by maintaining the volume fraction of fiber to matrix as 40:60. In the hybrid composites, the volume fraction of coir was maintained as 20%, while the volume fraction of other fibers was varied from 5% to 15%. The mechanical properties of the hybrid composites were investigated as a function of fiber volume fraction of sisal and palmyra palm fibers. The outcomes revealed that the hybrid composite have higher mechanical properties than the coir fiber composites due to synergistic effect of reinforcements. Furthermore, the morphological studies were carried out on the mechanical tested samples to predict the failure mechanisms.

摘要

在目前的工作中，试图通过添加高强度剑麻和棕榈纤维来改善椰壳纤维增强环氧树脂复合材料的机械性能。通过将纤维与基体的体积分数保持为 40:60，使用压缩成型技术制造混合复合材料。在混合复合材料中，椰壳纤维的体积分数保持在 20%，而其他纤维的体积分数从 5% 到 15% 不等。混合复合材料的机械性能作为剑麻和棕榈纤维的纤维体积分数的函数进行了研究。结果表明，由于增强材料的协同作用，混合复合材料比椰壳纤维复合材料具有更高的力学性能。此外，