| Properties of High Mooney Viscosity NdBR/SSBR Tread Compound |
| Received:April 25, 2019 Revised:April 25, 2019 |
| DOI：10.12136/j.issn.1000-890X.2019.11.0830 |
| Key Words: high Mooney viscosity；NdBR；SSBR；tread compound；silica；carbon black；dynamic mechanical property |
| Author Name | Affiliation | E-mail | | ZHAO Tianqi* | Beijing Research and Design Institute of Rubber Industry Co,Ltd | zhaotianqiztq@163.com | | ZHOU Zhifeng | Beijing Research and Design Institute of Rubber Industry Co,Ltd | | | ZHANG Zhiqiang | CNPC Jinzhou Petrochemical Co. ，Ltd | |
|
| Hits: 739 |
| Download times: 427 |
| Abstract: |
| Based on the tread compound formula of semi-steel radial tire，two kinds of high Mooney
viscosity neodymium butadiene rubber（NdBR，denoted as NdBR-1# and NdBR-2#，with Mooney viscosities of 67 and 72，and relative molecular mass distributions of 3. 26 and 2. 31，respectively）were blended with
solution polymerized styrene-butadiene rubber（SSBR），and the properties of the two tread compounds were
investigated. The results showed that，the scorching time of the two tread compounds was similar，and the
hardness，strength，elasticity，compression heat generation and aging resistance were similar. The NdBR-
2#/SSBR tread compound and the NdBR-1#/SSBR tread compound with large amount of silica （silica/
carbon black blend ratio was 75/5） had better crack growth resistance and cutting resistance. The dynamic
mechanical properties of the two tread compounds were balanced，and the rolling resistance was equal. But
when the carbon black N234/silica blend ratio was high（35/45 and 55/25），the NdBR-1#/SSBR tread
compound had better wet skid resistance. |
|
View Full Text
View/Add Comment Download reader |
| Close |
