Enhancing Mechanical Properties of Polypropylene Composites Reinforced with Date Palm Fiber Using Maleic Anhydride Grafted Polypropylene as a Compatibilizer

This study investigates the effects of incorporating date palm fiber (DPF), polypropylene grafted maleic anhydride (PP-g-MA), and impact-modifying masterbatch on the tensile properties of polypropylene (PP) composites. Using a design of experiments (DOE) approach and analysis of variance (ANOVA), the interactions between these components were analyzed. The tensile strength of the composites increased by up to ۲۱.۰۸% compared to pure PP, reaching ۱۹.۶ MPa, while the elastic modulus improved by ۵۴.۷۸%, reaching ۲.۴۳ GPa, at ۲۰ wt.% DPF and ۵ wt.% PP-g-MA. Although the masterbatch enhanced impact resistance, its higher concentrations reduced tensile strength by up to ۳۱.۹۷% compared to formulations with minimal masterbatch content. The optimal composition—۲۰ wt.% DPF, ۵ wt.% PP-g-MA, and ۱ wt.% masterbatch—exhibited the best overall mechanical performance, balancing tensile strength, elastic modulus, and impact resistance. This study highlights the synergistic effects of natural fibers and polymer compatibilizers, providing a pathway for the development of sustainable, high-performance bio-composites.

کلیدواژه ها:

Date Palm Fiber ، Composite ، compatibilizer ، Bio-composite ، mechanical property