Rice husk ash as filler in tread compounds to improve rolling resistance
Fernandes, Mônica Romero Santos; Sousa, Ana Maria Furtado de; Furtado, Cristina Russi Guimarães
Abstract
In the tire industry carbon black is being replaced by silica as a filler in recent due to the development of “green tires”. Amorphous precipitated silica in combination with a silane coupling agent as a filler in tread compounds can result in fuel savings of 3% to 4% compared to a tire having treads made from compounds with carbon black. This means a 20% reduction of the rolling resistance and consequently lower greenhouse gas emissions. On the other hand, rice is one of the most important food crops generating around 22% in weight of husk during its milling, a material that is mainly used as fuel for energy generation, resulting in ash. Rice husk ash (RHA) contains over 70% of silica in amorphous form. In this paper we evaluated the effect of replacing carbon black with RHA in a basic tread formulation. Compounds mechanical, dynamic properties and morphology were analyzed.
Keywords
References
1. Eirich, F. R., Erman, B., & Mark, E. J. (2005). The science and technology of rubber. New York: Elsevier.
2. Li, Y., Han, B., Liu, L., Zhang, F., Zhang, L., Wen, S., Lu, Y., Yang, H., & Shen, J. (2013). Surface modification of silica by two-step method and properties of solution styrene rubber (SSBR) nanocomposites fillied with modified silica. Composites Science and Technology, 88, 69-73. http://dx.doi.org/10.1016/j.compscitech.2013.08.029.
3. Rauline, R. (1993). US Patent 5,227,425. Retrieved in 23 December 2015, from http://www.google.com/patents/US5227425
4. Fernandes, M., & Santos, N. (2013). SBR em solución para neumaticos de alto rendimento. In XII Jornadas Latinoamericanas de Tecnologia Del Caucho. Buenos Aires: SLT Caucho. Retrieved in 23 December 2015, from http://www.sltcaucho.org/jornadas2013/trabajos-tecnicos/#inline_content-conferencias
6. Dierkes, W. (2005). Economic mixing of silica-rubber compounds Interaction between the chemistry of the silica-silane reaction and the physics of mixing (Doctoral thesis). University of Twente, Enschede.
7. Mihara, S. (2009). Reactive processing of silica-reinforced tire rubber, new insight into the time- and temperature-dependence of silica rubber interaction mixing (Doctoral thesis). University of Twente, Enschede.
8. Dierkes, W. K, Noordermeer, J. W. M. (2012). Annual showcase. Tire Technology International, 14-18.
9. Pouey, M. T. F. (2006). Beneficiamento da cinza da casca de arroz residual com vistas à produção de cimento composto e/ou pozolânico (Master's dissertation). Universidade Federal do Rio Grande do Sul, Porto Alegre.
10. Ismail, H., Nasaruddin, M. N., & Rozman, H. D. (1999). The effect of multifunctional additive in white rice husk ash filled natural rubber compounds. European Polymer Journal, 35(8), 1429-1437. http://dx.doi.org/10.1016/S0014-3057(98)00223-7.
11. Chandrasekhar, S., Pramada, P. N., & Praveen, L. (2005). Effect of organic acid treatment on the properties of rice husk silica. Journal of Materials Science, 40(24), 6535-6544. http://dx.doi.org/10.1007/s10853-005-1816-z.
12. Costa, H. M., Furtado, C. R. G., Nunes, R. C. R., & Visconte, L. L. Y. (2001). Rice-husk-ash-filled natural rubber. ii. partial replacement of commercial fillers and the effect on the vulcanization process. Journal of Applied Polymer Science, 83, 2485-2493. http://dx.doi.org/10.1002/app.11514.
13. Ismail, H., Nasaruddin, M. N., & Ishiaku, U. S. (1999). White rice husk ash filled natural rubber compounds: the effect of multifunctional additive and silane coupling agents. Polymer Testing, 18(4), 287-298. http://dx.doi.org/10.1016/S0142-9418(98)00030-0.
14. Kalapathy, U., Proctor, A., & Shultz, J. (2000). A simple method for production of pure silica from rice hull ash. Bioresource Technology, 72(3), 257-262. http://dx.doi.org/10.1016/S0960-8524(99)00127-3.
15. Furtado, C., Mansur, C., Sousa, A. M., & Visconte, L. (2009). Silica sol obtaained from rice husk ash. Chemistry & Chemistry Technology, 3, 331-336. Retrieved in 23 December 2015, from ena.lp.edu.ua:8080/handle/ntb/3307
17. Fröhlich, J., Niedermeier, W., & Luginsland, H.-D. (2005). The effect of filler-filler and filler-elastomer interaction on rubber reinforcement. Composites. Part A, Applied Science and Manufacturing, 36(4), 449-460. http://dx.doi.org/10.1016/j.compositesa.2004.10.004.