ABSTRACT

The application suitability of natural fibers is increased by the method of hybridization. The current study deals with the development and characterization of four different tri-layer composites by varying the stacking sequence of Parthenium hysterophorus and Impomea pes-caprae fibers with epoxy as a matrix, by using the conventional hand layup process. The mechanical properties, namely tensile, flexural, impact, Shore D hardness, and water absorption properties, were analyzed as per ASTM. The test results show that composites with upper layers of Impomea pes-caprae and a core layer of Parthenium hysterophorus fibers showed enhanced mechanical properties and reduced water absorption, thereby proving its suitability for lightweight medium load applications. Morphological studies using Scanning Electron Microscope elucidated the fiber bonding and void characteristics of the tested composites.

摘要

通过杂交的方法提高了天然纤维的适用性。当前的研究通过使用常规的手工铺网工艺，通过改变以环氧树脂为基质的Parthenium hysterophorus和Impomea pes-caprae纤维的堆叠顺序，来研究四种不同的三层复合材料的开发和表征。根据ASTM分析了机械性能，即拉伸，挠曲，冲击，肖氏D硬度和吸水性能。测试结果表明，复合材料具有较高的Impomea pes-caprae层和一个核心的Parthenium hysterophorus层纤维显示出增强的机械性能和降低的吸水率，从而证明了其适用于轻型中等负荷应用。使用扫描电子显微镜的形态学研究阐明了所测试复合材料的纤维粘合和空隙特性。