REBOUND RESILIENCE AND HEAT BUILD-UP OF HYBRID CARBON BLACK/SILICA-REINFORCED SOLID TIRE TREAD COMPOUND CONTAINING GROUND TIRE RUBBER OF DIFFERENT PARTICLE SIZES

  • Reginald Umunakwe Department of Materials and Metallurgical Engineering, Faculty of Engineering, Federal University Oye-Ekiti, Ikole Campus (Ikole Ekiti), Nigeria
  • Chioma Ifeyinwa Madueke Department of Materials and Metallurgical Engineering, Faculty of Engineering, Federal University Oye-Ekiti, Ikole Campus (Ikole Ekiti), Nigeria
  • Ifeoma Janefrances Umunakwe Department of Chemistry, Faculty of Science, Federal University Oye-Ekiti
  • Dosu Malomo Department of Chemistry, Faculty of Science, Federal University Oye-Ekiti
  • Akinlabi Oyetunji Department of Metallurgical and Materials Engineering, School of Engineering and Engineering Technology, Federal University of Technology Akure Akure, Nigeria
  • Wilson Uzochukwu Eze Department of Polymer Technology, Nigerian Institute of Leather and Science Technology, Zaria, Nigeria
Keywords: Ground tire rubber, heat build-up, hybrid filler, rebound resilience, vulcanizate

Abstract

The effect of addition of 20 phr ground tire rubber (GTR) of 40, 60, 80 and 100 mesh sizes in hybrid carbon black/silica (CB/SiO2) reinforced solid tire tread compound on the rebound resilience and heat build-up was investigated. The hybrid filler reinforcement was in the ratio of 50/10. Two-step mixing utilizing an internal mixer and two-roll mill was employed for the mixing, while vulcanization was carried out at 150. Results show that additional GTR lowered the rebound resilience and increased the heat build-up of the vulcanizates with the 100 mesh size GTR impacting the most adverse effect on the vulcanizates. The use of hybrid CB/SiO2 reinforcement helped in the recovery of some of the lost rebound due to the addition of GTR in the matrix. The use of hybrid CB/SiO2 reinforcement contributed to only a slight reduction in the heat build-up of solid tire tread compound containing 20 phr of GTR.

Published
2024-04-01
How to Cite
Umunakwe, R., Madueke, C., Umunakwe, I., Malomo, D., Oyetunji, A., & Eze, W. (2024). REBOUND RESILIENCE AND HEAT BUILD-UP OF HYBRID CARBON BLACK/SILICA-REINFORCED SOLID TIRE TREAD COMPOUND CONTAINING GROUND TIRE RUBBER OF DIFFERENT PARTICLE SIZES. LAUTECH Journal of Engineering and Technology, 18(1), 76-82. Retrieved from https://laujet.com/index.php/laujet/article/view/612