Mechanical and Morphology Properties of Polypropylene/ Nano-CaCO3 Composites

Teng Fei Shen; Fa Chao Wu

doi:10.4028/www.scientific.net/AMR.774-776.625

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 774-776Mechanical and Morphology Properties of...

Mechanical and Morphology Properties of Polypropylene/ Nano-CaCO₃ Composites

Abstract:

To provide polypropylene (PP) with better excellent mechanical properties, nanoCaCO₃ particles are incorporated into PP matrix by melt blending in this work. To improve the mophology between PP and nanoCaCO₃, maleic-anhydride grafted PP (PP-g-MAH) was added as a compatibiliser. The results showed that PP-g-MAH indeed enhanced the interfacial adhesion of PP /nanoCaCO₃ composites, which is demonstrated by the measurement of scanning electron microscope (SEM). The results of tensile tests revealed that the inclusion of nanoCaCO₃ slightly increased modulus and decreased tensile strength and significantly increased the elongation at break. At high fraction of nanoCaCO₃, the elongation at break was declined. The nanosized feature, shape and dispersion conditions of nanoCaCO₃, played important roles in determining the performances of PP/nanoCaCO₃ composites.

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Periodical:

Advanced Materials Research (Volumes 774-776)

Pages:

625-628

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.774-776.625

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Online since:

September 2013

Authors:

Teng Fei Shen, Fa Chao Wu

Keywords:

Composite, Mechanical Property, Morpholoy, Nano-CaCO₃, Polypropylene (PP)

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