Improved Rolling Resistance Using f-SSBR, Silica, and a Mercapto Silane

Wednesday, October 12, 2016: 11:15 AM
Rm 306-7 (David L. Lawrence Convention Center )
Russell Cody, BS, Research & Development/Technology, Momentive Performance Materials Inc., Charlotte, NC, Michael York, Ph.D, Additives, Momentive Performance Materials, Tarrytown, NY and Daria Sitnikova, Ph.D., Momentive Performance Materials GmbH, Leverkusen, Germany
High energy loss in tires leads to poor fuel economy. One approach to improve fuel economy has been to employ silica with a silane coupler in tread compounds to reduce rolling resistance while minimizing performance trade-offs. A virtually ethanol free mercapto silane was compared to standard sulfur silanes in optimized passenger tire tread compounds containing f-SSBR and 85 phr silica loadings to reduce rolling resistance. Reductions in Tan d at 60 ºC greater than 10% were obtained without loss in compound processing or properties. The new mercapto silane can improve fuel economy without loss of other tire performance parameters.