One of the clearest trends in today’s tire industry is the development of eco-friendly tires. In fact, eco-friendly tires are proving to be a solution to a number of important industry-wide challenges:
- Reducing the amount of raw materials we use: eco-friendly tires last longer and thus use up less raw material, resulting in a more sustainable product and easing the strain on limited natural resources, like natural rubber (NR).
- Improving safety through improved endurance properties: with less energy dissipating through the tread, there is less heat generated in the tires, which prevents the separation of the tread belt.
- Improving fuel consumption: Tires containing treads with low hysteresis compounds have a lower rolling resistance, which means they also have lower fuel consumption.
Performance in tires
Heat build up:
- Goodrich flexometer testing has shown that the addition of Sulfron D3515 significantly reduces the build up of heat, which dramatically lengthens the time until blow out. This is particularly important for heavy-duty tires – for trucks, aircraft, and solid and OTR tires – as the reduction of heat build-up not only translates into increased durability, but also into reduced rolling resistance. You can also expect to see significant improvements in tread-wear rates by using higher levels of blacks, or blacks that give greater reinforcement. Sulfron D3515 will prevent the heat build-up that normally results from this kind of compound modification.
- Repeated contact with sharp stones, curbs, and other irregularities in the driving surface causes tearing, chipping and chunking. Although these phenomena are most commonly associated with off-the-road tires, it can also be observed in highway truck tires as well as in all-season passenger tires. The consequence is a shorter life-time for the tread rubber. Laboratory testing has demonstrated that a tire’s chip-and-chunk resistance can be significantly improved with the addition of Sulfron D3515.
- Tires are subjected to dynamic loading, and the associated degradation effects are damaging to their in-service performance. We can accurately predict the performance and energy loss of a particular tire in a range of operating conditions by using the known visco-elastic properties of the tire’s components. This enables tires to be evaluated in the laboratory at the design stage, minimizing development time and the costs incurred for manufacturing and testing numerous experimental tires. Using this technique, it has been demonstrated that the tan δ at rolling conditions (60°C, 10Hz and 2% strain) of a truck-tread compound is reduced by 30% upon addition of Sulfron D3515. That indicates a significant decrease in rolling resistance.