炭黑/白炭黑并用补强天然橡胶/溶聚丁苯橡胶复合材料的结构与性能  

Structure and Property of NR/SSBR Composite Reinforced by Carbon Black/Silica

作　　者：李旭 李遇春 吴友平[1] LI Xu;LI Yuchun;WU Youping(Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学北京市新型高分子材料制备与成型加工重点实验室,北京100029

出　　处：《橡胶工业》2018年第9期997-1001,共5页China Rubber Industry

摘　　要：研究炭黑/白炭黑并用对天然橡胶(NR)/溶聚丁苯橡胶(SSBR)并用胶结构与性能的影响。结果表明:与不添加白炭黑的NR/SSBR并用胶相比,添加5~10份白炭黑的NR/SSBR并用胶定伸应力、拉伸强度、拉断伸长率和撕裂强度变化不大;添加15份白炭黑的NR/SSBR并用胶结合胶质量分数最大,交联密度增大,硬度减小,300%定伸应力提高,拉断伸长率降低,储能模量最低,Payne效应最弱,填料分散最好,滚动阻力最小,压缩疲劳温升最小,耐磨性能和压缩疲劳温升的平衡性最好。The effect of carbon black/silica on the structure and properties of natural rubber（NR）/solution-polymerized styrene-butadiene rubber（SSBR）blends was studied. The results showed that,compared with NR/SSBR blend without silica,the modulus,tensile strength,elongation at break and tear strength of NR/SSBR blends filled with 5 to 10 phr silica had little change. The mass fraction of bound rubber of the NR/SSBR blend filled with 15 phr silica was the highest,crosslink density increased,hardness decreased,modulus at 300% elongation increased,elongation at break decreased,storage modulus was the lowest and Payne effect was the weakest,filler dispersion was the best,rolling resistance and compression fatigue temperature rise was the lowest,and the balance between wear resistance and compression fatigue temperature rise was the best.

关 键 词：炭黑 白炭黑 天然橡胶 溶聚丁苯橡胶 滚动阻力 耐磨性能 压缩疲劳温升 

分 类 号：TQ330.381[化学工程—橡胶工业] TQ332