Wollastonite and talc reinforced polypropylene hybrid composites: Mechanical, morphological and thermal properties

This study focused on evaluating the mechanical, thermal, and morphological properties of polypropylene (PP) hybrid composites containing two different inorganic mineral fillers, namely wollastonite (WO) talc. The were prepared by melt mixing process using a twin screw extruder an injection molding machine. All contained constant filler loading at 20 wt% with varying WO/talc weight ratios (20/0, 15/5, 10/10, 5/15, 0/20). Melt flow index (MFI), mechanical (impact strength tensile properties), heat distortion temperature (HDT) fractured surface morphology, thermal behaviors resulting investigated. results revealed enhancement in MFI, HDT, impact strength, Young’s modulus, crystallization temperature, melting degree crystallinity decline elongation break small increase compared to those pure PP. These according lubricating effect (increased flowability), reinforcing effects barrier HDT temperature), nucleating crystallinity) fillers.