热解炭黑的研磨和偶联改性及其对丁苯橡胶的补强作用研究  

Grinding and Coupling Modification of Pyrolysis Carbon Black and Its Reinforcing Effect on SBR

作　　者：孙阿彬[1] 刘勋聪 王琦 夏琳[1] SUN Abin;LIU Xuncong;WANG Qi;XIA Lin(Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院/橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《橡胶工业》2020年第12期924-928,共5页China Rubber Industry

基　　金：国家自然科学基金资助项目(51303092);山东省自然科学基金资助项目(ZR2019MEM016);山东省重大科技创新工程项目(2019JZZY020223)。

摘　　要：采用研磨和偶联剂乙烯基三乙氧基硅烷(VTEO)对热解炭黑(CBp)进行改性处理,研究研磨改性CBp和VTEO改性CBp补强对丁苯橡胶(SBR)胶料性能的影响。结果表明:随着研磨时间的延长,CBp粒径减小,与橡胶大分子链的相互作用增强,研磨改性CBp补强SBR胶料的门尼粘度和Fmax-FL增大,硫化胶的物理性能提高;VTEO改性使CBp补强SBR胶料的t10延长,加工安全性提高,当采用1份VTEO改性50份CBp时,硫化胶的拉伸强度提高1.6 MPa。Pyrolysis carbon black(CBp) was modified by grinding and coupling agent vinyl triethoxysilane(VTEO),and the effects of grinding modified CBp and VTEO modified CBp on the properties of butadiene styrene rubber(SBR) compound were studied. The results showed that,with the extension of grinding time,the particle size of CBp decreased,and the interaction between CBp and rubber macromolecular chain was enhanced. The Mooney viscosity and Fmax-FL of the grinding modified CBp reinforced SBR compound increased,and the physical properties of the vulcanizates were improved. The t10 of VTEO modified CBp reinforced SBR compound was prolonged,which indicated the processing safety was improved. When 1 phr of VTEO was used to modify 50 phr of CBp,the tensile strength of the vulcanizate increased by 1.6 MPa.

关 键 词：热解炭黑 丁苯橡胶 研磨 硅烷偶联剂 改性 补强作用 

分 类 号：TQ330.381[化学工程—橡胶工业] TQ333.1