| 不同牌号溶聚丁苯橡胶的分子结构对其胶料性能的影响 |
| Influence of Molecular Structure of Different Grades of SSBR on Properties of Its Compound |
| 投稿时间：2024-04-30 修订日期：2024-05-24 |
| DOI：10.12136/j.issn.1000-890X.2025.07.0511 |
| 中文关键词: SSBR 绿色轮胎 白炭黑 滚动阻力 |
| 英文关键词: SSBR functionalization silica loss factor |
| 基金项目: |
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| 中文摘要: |
| 研究不同牌号溶聚丁苯橡胶（1种普通SSBR与3种官能化SSBR）的分子结构对胶料性能的影响。结果表明：普通SSBR2550的相对分子质量分布宽，官能化SSBR5251H和SSBRHPR850分子为四臂偶联；SSBR4602分子为双臂偶联；官能化SSBR5251H，SSBR4602和SSBRHPR850胶料的门尼粘度和结合胶含量明显大于普通SSBR2550胶料，填料分散性明显优于SSBR2550胶料；普通SSBR2550硫化胶的损耗因子（tanδ）最大和压缩疲劳温升最高，官能化SSBR4602硫化胶的tanδ最小和压缩疲劳温升最低；官能化SSBR4602硫化胶的耐磨性能最好和在0～250%应变下的定伸应力最大。综合来看，官能化SSBR4602胶料的性能最佳，适用于绿色轮胎胎面胶。 |
| 英文摘要: |
| The influence of molecular structure of different grades of solution polymerized styrene butadiene rubber（1 ordinary SSBR and 3 functionalized SSBR） on properties of its compound was investigated.The results indicated that，the molecular weight distribution of ordinary SSBR2550 was wide，the molecules of SSBR5251H and SSBRHPR850 were four arm coupling，the molecule of SSBR4602 was double arm coupling.The Mooney viscosities and bound rubber contents of the functionalized SSBR5251H，SSBR4602 and SSBRHPR850 compounds were significantly greater than those of the non functionalized SSBR2550 compound，and the filler dispersion was significantly better than that of SSBR2550 compound.The loss factor（tanδ） and compression fatigue temperature rise of the ordinary SSBR2550 compound were the highest，while the tanδ and compression fatigue temperature rise of the functionalized SSBR4602 compound were the lowest.The wear resistance of the functionalized SSBR4602 vulcanizate was the best，the tensile stress at 0～250% strain was the greatest.Overall，the functionalized SSBR4602 compound had the best performance，it was suitable for the tread compound of green tire. |
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