Abstract
Abstract Modification and characterization of the physical, chemical and morphological properties of chemically engineered bemban fibers have been carried out with various NaOH concentrations and soaking times. The aim is to obtain the most optimal bemban fiber modification result so that they can be recommended as functional material reinforcement in composites. Fibers were modified by soaking for 1, 2 and 3 hours in NaOH solutions with concentrations of 2%, 3% and 4%; and also at 5% NaOH for 0.5 hours, 1 hour and 2 hours. The modification has reduced the lignin content and increased the cellulose fiber content. These results were confirmed by the results of the functional group spectrum using FTIR and fiber morphology using SEM. The physical properties of fiber such as water content, fiber diameter and porosity decreased while fiber density increased. The characteristics of the bemban fiber with modification in 5% NaOH solution for 2 hours have optimum values for the modifications carried out.
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