Investigation on β-Polypropylene/Talc Composites

Abstract:

In this study polypropylene (PP) composites containing β-nucleating agent (NT-C) and talc filler were prepared by melt compounding. The melting and crystallization behavior, morphology and mechanical properties of the composites were studied by means of differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD), polarized light microscopy (PLM) and mechanical tests. The results indicate that talc suppresses the formation of β phase, but promotes the formation of α phase. The Izod notched impact strength and tensile strength of β-PP/talc composites are superior to those of PP/talc composites, indicating an outstanding balance of stiffness and toughness of β-PP/talc composites.

• Periodical: Applied Mechanics and Materials (Volumes 182-183)
• Pages: 259-264
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.182-183.259
• Online since: June 2012
• Authors: Jia Wei Duan, Qiang Dou
• Keywords: Composite, Crystallization, Polypropylene (PP), Talc, β Crystalline Form

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