Investigation of zinc oxide surface effect on polydienes vulcanization
https://doi.org/10.20914/2310-1202-2025-1-266-271
Abstract
Tests were carried out of complex vulcanization activators containing 30 wt. % zinc oxide based on P1T2 bentonite and zinc oxide with different specific surface areas. Vulcanization and elastic-strength properties of experimental and reference rubber compounds based on SKI-3 rubber and their vulcanizates were investigated. The experimental rubber compounds were obtained by replacing the traditional activator system (zinc oxide (5 parts by weight) and stearic acid (2 parts by weight)) with a complex vulcanization activator (5 parts by weight). It was found that the minimum torque in the experimental compounds was lower, which indicates good technological properties of the experimental rubber compounds. The optimum time and vulcanization rate were higher in the reference samples. Samples of complex vulcanization activators containing zinc oxide particles with a specific surface area from 5.2 to 18.1 m2/g were characterized by greater resistance to premature vulcanization. It has been established that the use of complex vulcanization activators allows to reduce the total time of manufacturing rubber compounds and vulcanizates. The elastic-strength indicators of the experimental rubbers in the presence of complex vulcanization activators were at the level of the reference ones. It is worth noting the best indicators of relative elongation at break for the experimental samples. It has been established that a complex vulcanization activator with a reduced content of zinc oxide and a specific surface area of zinc oxide particles from 4 to 7.5 m2/g mm provides the best set of physical and mechanical properties and can be recommended for practical use in rubber compounds, which will reduce the content of toxic zinc oxide for the environment and improve the technical and operational indicators of rubber products.
About the Author
A. A. Golyakevich
Voronezh state university of engineering technologies
Russian Federation
Russian Federation
Dr. sci., head of department, Department of technology of organic compounds, processings of polymers and technosphere safety, Revolution Av., 19 Voronezh, 394036, Russia
References
1. Dontsov A.A. On the mechanism of vulcanization structure formation during sulfur vulcanization. High Molecular Compounds. 1973. vol. 15A. no. 7. pp. 1545–1551. (in Russian).
2. Dogadkin B.A., Dontsov A.A., Shershnev V.A. Chemistry of elastomers. Moscow, Khimiya, 1981. 376 p. (in Russian).
3. Ikeda Y., Yasuda Y., Ohashi T. et al. Dinuclear Bridging Bidentate Zinc/Stearate Complex in Sulfur Cross-Linking of Rubber. Macromolecules. 2015. vol. 48. pp. 462–475.
4. Ikeda Y., Sakaki Y., Yasuda Y. et al. Roles of Dinuclear Bridging Bidentate Zinc/Stearate Complexes in Sulfur Cross-Linking of Isoprene Rubber. Organometallics. 2019. vol. 38. pp. 2363–2380.
5. Heideman G., Noordermeer J., Datta R., Baarle B.V. Effect of Zinc Complexes as Activator for Sulfur Vulcanization in Various Rubbers. Rubber Chemistry and Technology. 2005. vol. 78. pp. 245–257.
6. Butuc S.G. Novel Cyclic Polysulfide Based Blends: Elucidation of the Role of Zinc Oxide in Sulfur Crosslinking. Ph.D. Thesis. University of Twente, Enschede, The Netherlands, 2021.
7. Mukhutdinov A.A., Nelyubin A.A., Ilyasov R.S. et al. Environmental aspects of modifying ingredients and tire production technology. Kazan, Fen, 1999. 399 p. (in Russian).
8. Karmanova O.V., Tikhomirov S.G., Golyakevich A.A. Application of new vulcanization activators in the production of rubber products. Rubber Industry. Raw Materials. Materials. Technologies: Proc. of the XXVI Scientific and Practical Conference. Moscow, 2021. pp. 107–108. (in Russian).
9. Schwartz A.G. Application of the swelling method in the study of various rubber properties. Rubber and Rubber. 1965. no. 4. pp. 39–43. (in Russian).
10. Srivastava A., Sharma S. Recent advances in experimental and molecular dynamics study of graphene-oxide/natural rubber composites: A review. Journal of Reinforced Plastics and Composites. 2022. vol. 42. no. 3-4. pp. 110–130. doi: 10.1177/07316844221102939.
11. Fatneva A.Yu. Vulcanization activators for rubbers with reduced zinc oxide content. Ph.D. Thesis. Voronezh, VSUIT, 2020. 127 p. (in Russian).
12. Karmanova O.V., Golyakevich A.A., Shashok Zh.S., Leshkevich A.V., Safonov K.D. Influence of the dispersion of a complex vulcanization activator on the properties of rubber compounds and rubbers. Bulletin of VSUIT. 2024. vol. 86. no. 4. pp. 207–214. doi: 10.20914/2310-1202-2024-4-207-214. (in Russian).
13. Lin Y., Chen Y., Zeng Z. et al. Effect of ZnO nanoparticles doped graphene on static and dynamic mechanical properties of natural rubber composites. Composites Part A: Applied Science and Manufacturing. 2015. vol. 70. pp. 35–44. doi: 10.1016/j.compositesa.2014.12.008.
14. Krainoi A., Prasert W. et al. Effect of modified zinc oxide nanoparticles on enhancement of mechanical, thermal and antibacterial properties of disinfectant natural rubber latex foams. Materials Today Communications. 2023. vol. 35. 105601. doi: 10.1016/j.mtcomm.2023.105601.
15. Hadi F.A., Kadhim R.G. A Study of the Effect of Nano Zinc Oxide on Cure Characteristics and Mechanical Properties of Rubber Composites. Journal of Physics: Conference Series. 2019. vol. 1234. 012043. doi: 10.1088/1742-6596/1234/1/012043.
16. Qin X., Xu H. et al. Enhancing the Performance of Rubber with Nano ZnO as Activators. ACS Applied Materials & Interfaces. 2020. vol. 12. no. 42. pp. 48007–48015. doi: 10.1021/acsami.0c15114.
17. Mostoni S., Milana P. et al. Zinc-Based Curing Activators: New Trends for Reducing Zinc Content in Rubber Vulcanization Process. Catalysts. 2019. vol. 9. no. 8. 664. doi: 10.3390/catal9080664.
18. Mostoni S., D’Arienzo M. et al. Design of a Zn Single-Site Curing Activator for a More Sustainable Sulfur Cross-Link Formation in Rubber. Industrial & Engineering Chemistry Research. 2021. vol. 60. no. 28. pp. 10180–10192. doi: 10.1021/acs.iecr.1c01580.
19. da Silva A.A., de Souza M.A.V. et al. Magnesium oxide synthesized with Alpinia zerumbet leaf extracts as a sustainable alternative to zinc oxide in nitrile rubber compounds: A comparative vulcanization kinetics investigation. Journal of Applied Polymer Science. 2023. vol. 141. no. 7. e54945. doi: 10.1002/app.54945.
20. Roy A., Rajkumar K., Kapgate B. Prospects of Green Materials in Rubber Technology. Encyclopedia of Green Materials / Eds. C. Baskar, S. Ramakrishna, A. Daniela La Rosa. Singapore, Springer, 2024. doi: 10.1007/978-981-16-4921-9_282-1.
Review
For citations:
Golyakevich A.A. Investigation of zinc oxide surface effect on polydienes vulcanization. Proceedings of the Voronezh State University of Engineering Technologies. 2025;87(1):266-271. (In Russ.) https://doi.org/10.20914/2310-1202-2025-1-266-271
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