改性松香树脂用量对溶聚丁苯橡胶/顺丁橡胶并用胶性能的影响  

Effect of amount of modified rosin resin on properties of solution polymerized styrene-butadiene rubber/polybutadiene rubber compounds

作　　者：冯坤豪 隆燕妮 陈朝晖[1] 杨舜宇 FENG Kun-hao;LONG Yan-ni;CHEN Zhao-hui;YANG Shun-yu(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]华南理工大学材料科学与工程学院,广州510641

出　　处：《合成橡胶工业》2019年第3期184-188,共5页China Synthetic Rubber Industry

摘　　要：研究了改性松香树脂用量对溶聚丁苯橡胶(SSBR)/顺丁橡胶(BR)并用胶硫化性能、物理机械性能、抗湿滑性能及动态力学性能的影响。结果表明,随着改性松香树脂用量的增加,SSBR/BR硫化胶的邵尔A硬度、100%定伸应力、300%定伸应力及回弹率逐渐降低,拉伸强度、扯断伸长率、撕裂强度、磨耗及压缩疲劳温升逐渐增加。并且随着改性松香树脂用量的增加,SSBR/BR胶料的湿摩擦系数逐渐增大,接触角逐渐减小,增加了胶料与路面的湿接触面积。同时,改性松香树脂在胶料中分相,硫化胶的损耗因子峰值提高,玻璃化转变温度向高温方向移动,提高了硫化胶0℃时的损耗因子,而不影响60℃时的损耗因子,使得SSBR/BR胶料在抗湿滑性能提高的同时,基本不影响其滚动阻力。The curing properties, physical and mechanical properties, wet skid resistance and dynamic mechanical properties of solution polymerized styrene-butadiene rubber(SSBR)/polybutadiene rubber(BR) compounds were studied. The results showed that with the increase of amount of modified rosin resin, the Shore A hardness, modulus at 100%, modulus at 300% and rebound resilience of SSBR/BR vulcanizates gradually decreased, and the tensile strength, elongation at break, tear strength, abrasion loss and compression fatigue temperature rise gradually increased. In addition, with the increase of amount of modified rosin resin, the wet friction coefficient of SSBR/BR compounds gradually increased, and the contact angle gradually decreased which increased the area between compounds and pavement. Meanwhile, when the modified rosin resin was separated in the compounds, the peak value of the loss factor of the vulcanizates increased, the glass transition temperature moved to the high temperature, the loss factor at 0 ℃ increased, but the loss factor at 60 ℃ was not affected. It could improve the wet skid resistance of SSBR/BR compounds without affecting its rolling resistance at the same time.

关 键 词：溶聚丁苯橡胶 顺丁橡胶 松香树脂 硫化性能 物理机械性能 抗湿滑性能 动态力学性能 

分 类 号：TQ333.1[化学工程—橡胶工业]