Effects of Polyamide 12 Content on the Morphological, Thermal, and Mechanical Properties of Polyolefin Compound

The inherently non-polar nature of polyolefins(POs) restricts their blending with polar polymers owing to thermodynamic immiscibility. Compared to copolymerization, melt blending represents a more commercially viable and practical methodology for tailoring macromolecular properties in industrial applications. The blending of polyamides and POs is of particular interest as it synergistically combines the high mechanical strength and thermal stability of the former with the facile processability, cost-effectiveness, and high impact toughness of the latter, theoretically yielding an optimized property balance suitable for diverse engineering applications. In this study, PO compounds were formulated by incorporating varying concentrations of polyamide 12 (PA12) utilizing maleic anhydride-grafted polyethylene as a reactive compatibilizer. The resulting blends were systematically characterized to evaluate their microstructural evolution, thermal transitions, and mechanical performance.