ABSTRACT

In this study, Indian almond – Veli Karuvelam hybrid composites were fabricated by hand layup method and the mechanical & moisture absorption behaviors were studied. Totally, five composites were fabricated viz. I:V(1:0), I:V(0:1), I:V(3:1), I:V(1:1) & I:V(1:3). Tensile, flexural, impact & moisture absorption studies were carried out. Performance of all the composites was compared with each other. Experimental results showed that the I:V(0:1) exhibited the maximum tensile & flexural strength of 65 MPa & 240 MPa, respectively, due to the packing of more amount of high strength & high stiffness Veli Karuvelm fibers. Impact study showed that the I:V(0:1) composite displayed the maximum impact strength of 6.7 kJ/m² owing to the optimum bonding strength among the fibers and resin. Further, the moisture absorption study resulted that the I:V(1:0) composite showed the higher moisture absorption of 55% at 14 days compared to other composites because of the greater water intake capacity of the Indian almond fibers. It is concluded from this study that the I:V(0:1) composite could be used in structural applications as exhibited better mechanical properties.

摘要

在这项研究中，印度杏仁 - Veli Karuvelam 混合复合材料是通过手糊法制造的，并研究了机械和吸湿行为。总共制造了五种复合材料，即。I:V(1:0)、I:V(0:1)、I:V(3:1)、I:V(1:1) & I:V(1:3)。进行了拉伸、弯曲、冲击和吸湿研究。将所有复合材料的性能相互比较。实验结果表明，由于填充了更多的高强度和高刚度 Veli Karuvelm 纤维，I:V(0:1) 的最大拉伸和弯曲强度分别为 65 MPa 和 240 MPa。冲击研究表明，I:V(0:1) 复合材料的最大冲击强度为 6.7 kJ/m ²由于纤维和树脂之间的最佳结合强度。此外，吸湿研究结果表明，I:V(1:0) 复合材料在 14 天时表现出比其他复合材料更高的吸湿率 55%，因为印度杏仁纤维的吸水能力更大。从这项研究得出的结论是，I:V(0:1) 复合材料可用于结构应用，因为它表现出更好的机械性能。