Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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Improving SSBR Performance for Hybrid and Electric Vehicles

B12 bacchelli

Event: 200th Technical Meeting - Fall 2021
Location: Pittsburgh, PA
Date: October 05, 2021
Author: Fabio Bacchelli
Paper Number: B12

Price: $20.00

  • Electric vehicles and low emission hybrid cars are driving the transformation of mobility as we know it. This means it’s time to learn more about new materials, which can help target the rolling of high-tech tyres into carbon neutrality and ultimately into a CO2-emission-free future. However, matching sustainability with tyre performances will be the new challenge that both polymer producers and tyre makers will have to jointly face. In fact, electric engine torque has a positive and negative side. On the one hand, it means instant acceleration. On the other hand, this high instant torque places additional strain on the tires. To face such a demanding requirement, high molecular weight polymers are used, together with next generation fn-SSBR for a stronger filler-polymer interaction. High-cis BR with optimized architecture is also taken into account in order to improve compound extrudability, coming from the development of tread formulations with high silica load and polymers with enhanced elastic properties.
    An investigation is then presented for providing tyre tread compounds for hybrid and electric vehicles, containing specially designed SSBR grades produced through batch and continuous technology. Targeted key properties for the compounds are low hysteresis (lower rolling resistance) together with high grip and improved abrasion resistance. The sustainability of elastomers comes from the use of bio-attributed styrene/butadiene monomers through bio-naphtha and mass balance approach.

    Papers from 200th Technical Meeting - Fall 2021

    Items from 200th Technical Meeting - Fall 2021