 This study investigates the optimal technological parameters for extrusion and injection molding of polypropylene rapeseed straw composites, using wide-angle X-ray scattering to analyze structural properties, and finds that crystallization is influenced by interfacial interactions and melt flow index. Additionally, variations in matrix structure occur due to shearing forces and cooling conditions during processing. This article was authored by D. Porkster, M. Sostak, W. H. Betnerik and others.