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Grafting polypropylene and treatment of calcium carbonate to improve structure and properties of polypropylene composites

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Abstract

In this paper, calcium carbonate was chemically treated with two kinds of dicarboxylic acids before compounding with polypropylene in the presence of dicumyl peroxide (DCP). It was observed that the mixture of dicarboxylic acids could improve the crystallization and impact strength properties of calcium carbonate/polypropylene composite. With further addition of DCP, more PP-g-MA was produced in the blend, resulting in PP composites with larger β-phase content and improved mechanical properties. In the experiments, the maximum K β value of 52.0 % was obtained. The elongation at break of composite increased from 252 % for PP composite with untreated calcium carbonate to 444 % for PP composite with chemically treated calcium carbonate.

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Acknowledgements

The Project was supported by Natural Science Foundation of China and Project of Science (Grant No. 21101076).

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Authors and Affiliations

  1. College of Science and Engineering, Jinan University, Guangzhou, 510632, People’s Republic of China

    Zhidan Lin, Lin Cao, Zixian Guan, Yujing Wang, Wenbin Gaosun & Wei Li

  2. Huizhou Special Functional Materials Engineering Technology Development Center, Huizhou Changyi Technology Co. Ltd., Huizhou, 516227, People’s Republic of China

    Hubin Lin & Chongming Du

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  1. Zhidan Lin
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  2. Lin Cao
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  3. Zixian Guan
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  4. Hubin Lin
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  7. Wenbin Gaosun
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  8. Wei Li
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Correspondence to Zhidan Lin.

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Lin, Z., Cao, L., Guan, Z. et al. Grafting polypropylene and treatment of calcium carbonate to improve structure and properties of polypropylene composites. J Therm Anal Calorim 117, 765–772 (2014). https://doi.org/10.1007/s10973-014-3824-1

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  • DOI: https://doi.org/10.1007/s10973-014-3824-1

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