Studies on Dispersion of Insoluble Sulfur in Passenger Car Radial Belt Skim Compound

Authors

  • Arnab Dutta

    Hari Shankar Singhania Elastomer and Tyre Research Institute, Hebbal Industrial Area, Mysore, Karnataka, 570016, India
  • Hirak Satpathi

    Hari Shankar Singhania Elastomer and Tyre Research Institute, Hebbal Industrial Area, Mysore, Karnataka, 570016, India
  • Kanhaiya Anjana

    Hari Shankar Singhania Elastomer and Tyre Research Institute, Hebbal Industrial Area, Mysore, Karnataka, 570016, India
  • Sanjit Kumar Das

    Hari Shankar Singhania Elastomer and Tyre Research Institute, Hebbal Industrial Area, Mysore, Karnataka, 570016, India
  • Saikat Dasgupta

    Hari Shankar Singhania Elastomer and Tyre Research Institute, Hebbal Industrial Area, Mysore, Karnataka, 570016, India
  • Rabindra Mukhopadhyay

    Hari Shankar Singhania Elastomer and Tyre Research Institute, Hebbal Industrial Area, Mysore, Karnataka, 570016, India

DOI:

https://doi.org/10.30564/opmr.v5i1.5811
Received: 28 June 2023 | Revised: 21 July 2023 | Accepted: 23 August 2023 | Published Online: 30 August 2023

Abstract

Good dispersion of compounding ingredients in a rubber formulation is crucial for mechanical performance. After mixing, certain materials like sulfur, recycled materials, and zinc oxide can remain undispersed within the rubber matrix, which can lead to critical flaws and influence performance. Improper dispersion is one of the reasons for poor physico mechanical properties. The influence of temperature, mixing time and storage time of different grades of insoluble sulfur collected from one source are studied along with the standard sample of different sources. To better understand the reason for poor sulfur dispersion and high blooming, all the chemical and physical properties are analysed. The topological structures are evaluated using the thermomechanical techniques. The reason for poor dispersion and premature failure of the rubber specimen has been studied by SEM-EDS. The degradation of insoluble sulfur to soluble sulfur can be negligible during the melt mixing if the mixing is done in a controlled way. The final mixing temperature shall be maintained at 90 °C to 95 °C to restrict the insoluble to soluble sulfur conversion. This paper highlights the methodology of the development of oil-coated sulfur in rubber composites and provides insight into the dispersion of polymeric sulfur in natural rubber-based tyre carcass compounds.

Keywords:

Insoluble and soluble sulfur;; Rubber compound; Dispersion

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How to Cite

Dutta, A., Satpathi, H., Anjana, K., Das, S. K., Dasgupta, S., & Mukhopadhyay, R. (2023). Studies on Dispersion of Insoluble Sulfur in Passenger Car Radial Belt Skim Compound. Organic Polymer Material Research, 5(1), 15–24. https://doi.org/10.30564/opmr.v5i1.5811

Issue

Vol. 5 , Iss. 1 (June 2023)

Article Type

Article

License

Copyright © 2023 Arnab Dutta, Hirak Satpathi, Kanhaiya Anjana, Sanjit Kumar Das, Saikat Dasgupta, Rabindra Mukhopadhyay

Creative Commons License

This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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