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The β-nucleated ternary composites of polypropylene/nano-CaCO3/short poly(ethylene-terephthalate) fiber

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Abstract

A serial of β-nucleated polypropylene (β-PP)/nano-calcium carbonate (nano-CaCO3)/ short poly(ethylene-terephthalate) (PET) fiber composites were prepared using extrusion blending. Maleic anhydride grafted PP (PP-g-MA) was used to modify the compatibility. The relationships among components, structure, and properties of the PP composites were studied. The results show that adding nano-CaCO3 improved the mechanical properties of the materials. Adding PET fiber increased the rigidity and toughness but the tensile strength decreased. PP-g-MA modified the compatibility of the components of the composites. Both PET fiber and nano-CaCO3 had nucleation effect on the PP crystallization and slightly induced the formation of β crystals. Ternary β-PP/nano-CaCO3/PET fiber composites contained high β-crystal content, and the compatibilizer exhibited synergy effect with β nucleating agent to further increase the β-crystal content in the blends. Mo’s method could satisfactorily describe the nonisothermal crystallization behavior of ternary composites, whereas Jeziorny and Ozawa methods failed to do the same ideally.

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Acknowledgements

The Project was supported by the National Natural Science Foundation of China (Grant No. 21101076) and Major Science and Technology Projects of Guangdong Province, China (Grant No. 2010A080804021).

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Authors and Affiliations

  1. College of Science and Engineering, Jinan University, Guangzhou, 510632, China

    Zhidan Lin, Chao Chen, Zixian Guan, Mingqing Li, Guangheng Guo, Jiaming Xian & Wei Li

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  1. Zhidan Lin
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  2. Chao Chen
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  3. Zixian Guan
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  4. Mingqing Li
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  7. Wei Li
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Correspondence to Zhidan Lin.

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Lin, Z., Chen, C., Guan, Z. et al. The β-nucleated ternary composites of polypropylene/nano-CaCO3/short poly(ethylene-terephthalate) fiber. J Therm Anal Calorim 114, 229–237 (2013). https://doi.org/10.1007/s10973-013-2956-z

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  • DOI: https://doi.org/10.1007/s10973-013-2956-z

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