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| 分子链末端改性溶聚丁苯橡胶的结构与性能研究 |
| Structure and Properties of Chain-end Modified SSBR |
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| DOI： |
| 中文关键词: 胎面胶；溶聚丁苯橡胶；炭黑；微观结构；动态力学性能；滚动阻力 |
| 英文关键词: tread compound；solution styrene-butadiene rubber；carbon black；micro-structure；dynamic property；rolling resistance |
| 基金项目: |
| 中图分类号:TQ333.1；TQ330.38＋1 |
| Author Name | Affiliation | | WANG Lei | Beijing University of Chemical Technology | | ZHANG Xing-ying | Beijing University of Chemical Technology | | ZHAO Su-he | Beijing University of Chemical Technology |
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| 中文摘要: |
| 采用阴离子活性/可控聚合方法制备了溶聚丁苯橡胶（SSBR）、大体积官能团叔丁基二苯基氯硅烷制备封端改性SSBR（T-SSBR）和锡偶联星形SSBR，并对其结构和性能进行研究。结果表明：与未改性SSBR硫化胶相比，T-SSBR和星形SSBR硫化胶的炭黑分散性较好，达到纳米填料纳米尺度的分散，滞后损失较小，动态力学性能较好，拉伸强度、拉断伸长率、撕裂强度和回弹值较大；与星形SSBR硫化胶相比，T-SSBR硫化胶的拉伸强度、拉断伸长率和撕裂强度较小，动态压缩疲劳温升较低，抗湿滑性能较好，抗动态切割性能略低。 |
| 英文摘要: |
| Solution polymerized styrene-butadiene rubber(SSBR)，SSBR with end-capping modification (T-SSBR) by tert-butylchlorodiphenylsilane (large volume functional groups) and star-shaped SSBR were prepared by living/controlled anionic polymerization，and the structure and properties of those SSBRs were investigated.The results showed that，compared with unmodified SSBR，the dispersion of carbon black in T-SSBR and star-shaped SSBR vulcanizates were better，and carbon black in T-SSBR and star-shaped SSBR vulcanizates achieved nano-scale dispersion，the hysteresis loss were lower，the dynamic properties were better，and the tensile strength，elongation at break，tear strength and resilience were better.Compared with star-shaped SSBR vulcanizate，the tensile strength，elongation at break and tear strength of T-SSBR vulcanizate were lower，the dynamic compression fatigue heat build-up was lower，the wet-skid resistance was better，and the dynamic cutting resistance was a little worse. |
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