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A low-cost and high-value reinforcing filler for styrene butadiene rubber fabricated by a pneumatic separation technique from coal gasification fine slag

Polymer Journal volume 52, pages 493–503 (2020)Cite this article

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Abstract

A novel filler for rubber was prepared by deep processing of coal gasification fine slag (CGFS) using an airflow sorter. Five processed CGFS samples with different sizes and carbon contents were obtained. The effects of particle size, unburned carbon, and surface properties of CGFS on the comprehensive properties of filled styrene butadiene rubber (SBR) were investigated. The mechanical properties were improved with decreasing CGFS size, and the curing and mechanical properties exhibited better performance owing to the unburned carbon. Unburned carbon can improve the dispersion properties of the filler and the compatibility between the matrix and filler. The best values for the curing characteristics and mechanical properties of SBR appeared when CGFS-S2 and CGFS-S3 were used as the fillers, respectively. Heavy calcium carbonate (CaCO3) particles were used as a comparative filler, and the results demonstrated that CGFS particles have the potential to replace CaCO3 in rubber.

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Acknowledgements

This research was financially supported by the National Natural Science Foundation of China (grant number 51874145).

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Authors and Affiliations

  1. Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun, 130025, Jilin, PR China

    Weidong Ai, Jiupeng Zhang, Shiding Miao & Cundi Wei

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  1. Weidong Ai
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  2. Jiupeng Zhang
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  3. Shiding Miao
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  4. Cundi Wei
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Correspondence to Cundi Wei.

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Ai, W., Zhang, J., Miao, S. et al. A low-cost and high-value reinforcing filler for styrene butadiene rubber fabricated by a pneumatic separation technique from coal gasification fine slag. Polym J 52, 493–503 (2020). https://doi.org/10.1038/s41428-019-0300-6

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