ABSTRACT

The possible usage of natural fiber reinforced composites (NFC) for various industrial applications is being explored. In the present work, mechanical and wear behavior of three different NFCs were analyzed. Natural fibers like prosopis juliflora (PJ), abuliton indicum (AI), and tapsi (T) fibers in the form of straws were considered in the present study. Composites were fabricated for three different fibers with 20 wt.% by hand layup method. Mechanical tests like tensile, flexural, and impact were performed along with tribological tests. Tensile and flexural were performed on universal testing machine, impact on izod impact tester, and wear test on pin-on-disc test setup. Wear tests on the fabricated composite samples were performed with varying the process parameters like sliding speed and applied load with a maximum sliding distance of 3000 m. SEM analysis was also performed on the fractured and worn out samples to know the bonding behavior, failure, and material removal mechanism of three NFCs. Among all the NFCs, prosopis juliflora fiber attained an improved mechanical and wear behaviors when contrasted to the other two NFCs.

摘要

正在探索将天然纤维增强复合材料 (NFC) 用于各种工业应用的可能性。在目前的工作中，分析了三种不同 NFC 的机械和磨损行为。本研究考虑了稻草形式的天然纤维，如牧豆树 (PJ)、abuliton indicum (AI) 和 Tapsi (T) 纤维。通过手工铺层法制备了三种不同纤维的复合材料，其中 20 wt.%。拉伸、弯曲和冲击等机械测试与摩擦学测试一起进行。在万能试验机上进行拉伸和弯曲试验，在悬臂梁式冲击试验机上进行冲击，在销盘试验装置上进行磨损试验。通过改变滑动速度和施加载荷等工艺参数对制造的复合材料样品进行磨损测试，最大滑动距离为 3000 m。还对断裂和磨损的样品进行了 SEM 分析，以了解三种 NFC 的粘合行为、失效和材料去除机制。在所有 NFCs 中，与其他两种 NFCs 相比，prosopis juliflora 纤维的机械性能和磨损性能得到了改善。