Study of the Effects of Alkali Treatment and Fiber Orientation on Mechanical Properties of Enset/Sisal Polymer Hybrid Composite

In the manufacturing process of innovative fiber-based composite materials, natural fibers are among most commonly employed reinforcements. this study, Enset/Sisal (E/S) fiber with a polyester matrix was used to develop hybrid composites. Hand layup methods were for sample preparation from untreated, 5%, and 10% alkali-treated unidirectional woven orientations having 50:50 volume ratios. The mechanical properties water absorption composites influenced by treatment orientation. present investigation, result shows that treated orientation exhibit better than untreated E/S 5% NaOH-treated samples have higher tensile flexural strength composites, while lower properties. strengths impacts improved 5.21%, 9.25%, 5.98%, respectively, over morphological fracture surface observed using scanning electron microscopy (SEM).