Rheology and Thermal Properties of Polypropylene/Poly(phenylene Sulfide) Microfibrillar Composites

Abstract:

The polypropylene (PP)/ poly(phenylene sulfide) (PPS) in-situ microfibrillar composites were prepared by the melt blending technology using a single screw extruder. Maleic anhydride grafted polypropylene (PP-g-MAH) is used as the compatibilizer. The rheology was characterized on capillary rheometer, and thermal behaviors of the PP/PPS were investigated by DSC. The experiment results reveal that the melting PP/PPS composites conform to the law of Non-Newton and show typical shear-thinning behavior. The viscosity of PP/PPS composites is nearly independent of the PPS concentration at 270°С and 280°С , respectively. However, the contents of PPS have an influence on shear viscosity of the PP/PPS at 290С and 300°С . The DSC results exhibit that the crystallization temperatures (T_C) of PP in the composites are higher than that of the pure PP, and the T_C of PP increases slightly with increasing PP content in the composites. Moreover, the melting temperature of PPS in the composites decreases slightly with increasing PP content.

• Periodical: Advanced Materials Research (Volumes 194-196)
• Pages: 1506-1509
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.194-196.1506
• Online since: February 2011
• Authors: Hong Wang, Jing Guo, Xi Yang He
• Keywords: PP/PPS In Situ Microfibrillar Composite, Rheology, Thermal Property

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