Static, Dynamic Mechanical and Thermal Characteristics of Luffa, Morinda tinctoria, and Myrobalan Reinforced Epoxy Hybrid Biocomposites

As the name implies, natural fiber composites (NFC) are made of natural resources and thus have environmentally beneficial properties such as biodegradability. NFC has gained popularity in recent years due to its natural characteristics in a variety of applications such as automotive, goods, structural, and infrastructure. The objective of this study is to enhance the static, dynamic mechanical and thermal stability of new fibers/biodegradable hybrid composites. This paper focuses for the first time on three new and distinct types of fiber and fillers such as luffa, Morinda tinctoria wood powder, and myrobalan seed powder. In this work, due to good attributes of luffa fiber, it was maintained constant weight percentage (wt%). Morinda tinctoria wood powder and myrobalan seed powder were used on various wt%. compositions. The alkali-treated fiber-reinforced epoxy composite samples were fabricated through the hand lay-up method. Tensile and flexural characteristics of luffa/epoxy (LMM5) composite was attained as 287.14 MPa and 378 MPa, respectively. Addition of more than 45% of myrobalan seed powder reveals negative effect on both ductile and flexural characteristics. Furthermore, in dynamic mechanical analysis, the incorporation of 45 wt% myrobalan seed powder changed the glass-transition temperature and rubbery stage. These composite materials have such a wide range of applications, including vibration sound absorption, isolation, packaging, structural, and so on.