Maleic Anhydride Grafted Polypropylene (MAgPP) acts as an effective coupling agent, improving the bond between polypropylene (PP) and glass fiber by creating a strong chemical interaction at their interface. Additionally, it serves as a compatibilizer, enhancing the compatibility and dispersion of glass fibers within the polypropylene matrix. This dual functionality results in improved mechanical strength, better elongation properties, and overall superior composite performance.