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 Wet Grip and Hysteresis with Reinforcing and Individual Multi-wall Carbon Nanotubes

B15 krupp

Event: 200th Technical Meeting - Fall 2021
Location: Pittsburgh, PA
Date: October 05, 2021
Author: August Krupp
Paper Number: B15

Price: $20.00

  • The use of multi-wall carbon nanotubes (MWCNTs) for significantly improved wear resistant elastomer compounds, such as off-the-road (OTR) tire treads, has been established in previous studies. Those studies demonstrated an expansion in the ‘magic triangle’ of tire compound properties towards an optimization of wear resistance and rolling resistance or heat build-up, which is expected given the reinforcing properties of properly dispersed MWCNTs. A compound adjustment resulting in improved wet grip and rolling resistance simultaneously, while maintaining wear resistance, has not yet been studied with discrete carbon nanotubes. It is atypical for a reinforcing filler to be utilized in improving wet grip and hysteretic properties, but the use of discrete multiwall carbon nanotubes called MOLECULAR REBAR®, in combination with a change in elastomer composition or ratio of blends, can negate decreased wear resistance associated with altered polymer selection, while improving wet grip and hysteresis. The ‘magic triangle’ of compound properties can be expanded in any direction with individualized and reinforcing MWCNTs- improved wear and hysteresis with no change to wet grip has been demonstrated previously, and now improved wet grip and hysteresis has been shown with no change to wear resistance.

    Papers from 200th Technical Meeting - Fall 2021

    Items from 200th Technical Meeting - Fall 2021