Experimental investigation of structural stabilization in Sunn Hemp fiber and its influence on flexural, tensile, electrical properties of reinforced composite

Investigation of Dielectric and Mechanical Properties of Pretreated Natural Sunn Hemp Fiber-Reinforced Composite in Correlation with Macromolecular Structure of the Fiber

“…The alkalization process of fiber helps expose more cellulosic reactive sites and regulates the degree of swelling, which is required for enhancing the interfacial bonding with the matrix. 13 In contrast, physical treatment offers a greener pathway to modify the fiber structure to reduce chemical usage. Among various ways of physical treatment, microwave treatment results in a quick change in the electromagnetic field at a higher frequency and causes uniform volumetric heating within the fiber.…”

“…In this process, the cellulose polymer chains get rearranged. The alkalization process of fiber helps expose more cellulosic reactive sites and regulates the degree of swelling, which is required for enhancing the interfacial bonding with the matrix . In contrast, physical treatment offers a greener pathway to modify the fiber structure to reduce chemical usage.…”