| Effect of Raw Rubber System on Flexing Resistance of Sidewall Support Rubber |
| Received:December 17, 2018 Revised:December 17, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.12.0917 |
| Key Words: NR；BR；blend；sidewall support rubber；flexing resistance |
| Author Name | Affiliation | E-mail | | panyiren | Qingdao University of Science and Technology | pyr90hot@163.com | | Liu Huaqiao | Qingdao University of Science and Technology；Tire Technology Alliance | | | ZHU Lin | Qingdao University of Science and Technology | | | Wang Chuansheng* | Qingdao University of Science and Technology | chinaqust@163.com |
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| Abstract: |
| Sidewall support compound was produced by using the blend of natural rubber（NR） and
butadiene rubber（BR），and the effect of the blending ratio on the flexing resistance of sidewall support rubber
was studied. The results showed that with the increase of the addition level of NR in the NR/BR blend，
the carbon black dispersion was deteriorated，the tensile strength and elongation at break of the compound
increased，the elasticity decreased，and the compression fatigue temperature-rise increased. In contrast，the
flexing resistance of the compound could be improved by increasing the addition level of BR in the blend. |
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