Among all strategies for PP toughening, the introduction of a β-nucleating agent has been demonstrated to be the most reliable strategy. However, low temperature brittleness and poor impact resistance restrict its applicability. Moreover, the mechanical behavior shows that O-Sep (at proper content) simultaneously increased the tensile modulus, flexural modulus, and impact strength of PP/ABS/O-Sep blends.ĭue to its low density, good elongation, high thermal stability, and good solvent resistance, polypropylene (PP) has become one of the most popular engineering plastics. The rheological results show that O-Sep could increase the viscosity, storage modulus, and loss modulus of blends. The obtained results show that O-Sep enhanced the dispersion of ABS in the PP matrix and increased the crystallinity of blends. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were applied to study the crystallinity. Scanning electron microscopy (SEM) was applied to study the morphology and thermogravimetric analysis (TGA) was applied to study the thermal stability. The contents of O-Sep were correlated with the morphological, mechanical, and rheological behavior of PP/ABS/O-Sep blends. To improve the poor impact toughness of polypropylene (PP), organo-sepiolite (O-Sep) filled 80/20 ( w/w) polypropylene/poly(acrylonitrile-butadiene-styrene) (PP/ABS) nanocomposites were fabricated.
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