Sidewall-insert compound based on ZnO-treated aramid pulp fibers for run-flat tires
- 30 March 2016
- journal article
- research article
- Published by Informa UK Limited in Composite Interfaces
- Vol. 23 (8), 781-796
- https://doi.org/10.1080/09276440.2016.1170543
Abstract
To improve the endurance performance of run-flat tires by preventing the sidewall from folding at zero air pressure, a master batch of natural rubber and ZnO-treated aramid pulp (AP) is applied to the rubber sidewall-insert-layer compound. The mechanical, viscoelastic, and fatigue properties of the compounds are investigated by varying the AP content, and the endurance performance of actual run-flat tires is assessed. The results indicate that the mechanical properties are improved and the hysteresis is reduced as the AP content increased. The overall trend of the endurance times of the run-flat tires is consistent with the results of the DeMattia tests, constant-strain fatigue tests, and high-temperature tensile tests. The run-flat endurance time of the tire containing one part per hundred rubber (phr) of AP is superior to that of the tire containing 3 phr of AP because of the enhanced dispersion of the AP fibers.Keywords
This publication has 5 references indexed in Scilit:
- INFLUENCE OF FIBER TYPE AND COATING ON THE COMPOSITE PROPERTIES OF EPDM COMPOUNDS REINFORCED WITH SHORT ARAMID FIBERSRubber Chemistry and Technology, 2013
- Optimum design of run-flat tire insert rubber by genetic algorithmFinite Elements in Analysis and Design, 2012
- Reduced Hysteresis in Truck Tread Compounds by Using Aramid Short FibersRubber Chemistry and Technology, 2006
- Filler-Elastomer Interactions. Part VII. Study on Bound RubberRubber Chemistry and Technology, 1993
- Bound Rubber and Carbon Black ReinforcementRubber Chemistry and Technology, 1986