| Performance Comparisons of Four High-vinyl Solution Polymerized Styrene-butadiene Rubbers Filled with silica |
| Received:December 29, 2015 Revised:December 29, 2015 |
| DOI： |
| Key Words: Solution styrene-butadiene; silica; molecular weight and distribution; mechanical properties; wet traction; rolling resistance |
| Author Name | Affiliation | E-mail | | TAO Yan-chun | Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials,Beijing University of Chemical Technology | taoychmail@163.com | | SUN Zheng | Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials,Beijing University of Chemical Technology | | | WU You-ping* | Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials,Beijing University of Chemical Technology | wuyp@mail.buct.edu.cn |
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| Abstract: |
| The structures, the cure behaviors, mechanical properties, filler dispersion, wet traction and rolling resistance of two domestic solution polymerized styrene-butadiene rubbers reinforced by silica were studied, and compared with the foreign similar products. The results showed that among the four raw SSBRs, the molecular weights and its distributions of SSBR2564S, SSBR2557S were similar to SSBR2550, while SSBR6270 was coupled, having wider molecular weight distribution than that of the others. The cure behaviors and scorch safety of all the samples were similar. Among four SSBR vulcanizates, SSBR6270 possessed maximum tear strength and elongation at break while the mechanical properties of the others were similar. All the SSBR composites exhibited excellent abrasion wear resistance, wet traction and rolling resistance. In conclusion, domestic products SSBR2564S and SSBR2557S are similar to the foreign products SSBR2550 and SSBR6270 and all of them could be used as the base rubber to achieve low rolling resistance. |
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