Dynamic mechanical testing is a powerful predictive tool that can provide valuable insight into the tire performance of tread compounds. In this investigation, model silica filled styrene butadiene rubber (SBR) tread compounds were characterized by DMA using shear, tension and compression deformation modes. Temperature sweeps were performed to predict traction (snow, ice, wet) and rolling resistance tire performance while double strain sweeps were used to characterize the magnitude of the Mullin’s and Payne effect. A comparison with theoretical expectations for the dynamic properties measured with the three deformation modes was also carried out. The results showed how tread performance can be improved by using a functionalized SBR and an extended mixing time for the silane coupling reaction but not without some compromises in other properties.
This webinar aired on October 30, 2025 1:00 pm GMT-4.
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