Abstract
In this study, we investigated the impact of surface treatment on polylactic acid (PLA)/sawdust fiber (SF) composites. Utilizing a 20% weight-to-weight ratio of agricultural waste, three distinct chemical modification approaches were employed to treat the sawdust, with the aim of enhancing the compatibility between the PLA matrix and the wood fibers. The treatments included alkali-, benzoyl chloride-, and permanganate-treated SFs. The results demonstrated an increase in rigidity with alkali treatment, while composites treated with benzoyl chloride and permanganate exhibited improved ductility. However, the thermal stability of the treated fiber composites was reduced. Comparative analysis revealed that wood fibers treated with sodium hydroxide and permanganates exhibited superior dispersion in the PLA matrix compared to fibers treated with benzoyl chloride. Beyond these findings, this assessment carries significant implications for sustainable material development, since the utilization of agricultural waste provides an alternative composite material for construction or industrial applications. The study's outcomes contribute to the ongoing quest for eco-friendly solutions in material science and offer practical insights for selecting the most suitable composite material based on specific applications and industry needs.
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