改性纳米二氧化硅的制备及其在溶聚丁苯橡胶/顺丁橡胶并用胶中的应用  

Preparation of Modified Nano Silica and Its Application in SSBR/BR Blends

作　　者：毛义梅[1] 张洪影 张春华[1] 王延鹏[1] 李小红[3] 丁涛[1] MAO Yimei;ZHANG Hongying;ZHANG Chunhua;WANG Yanpeng;LI Xiaohong;DING Tao(Henan University,Kaifeng 475004,China;Northwest Rubber ＆ Plastic Research and Design Institute Co.,Ltd,Xianyang 712023,China)

机构地区：[1]河南大学阻燃材料与功能河南省工程实验室,河南开封475004 [2]西北橡胶塑料研究设计院有限公司,陕西咸阳712023 [3]河南大学纳米材料工程研究中心,河南开封475004

出　　处：《橡胶工业》2018年第7期772-776,共5页China Rubber Industry

基　　金：国家重点基础研究发展计划("973"计划)项目(2015CB654703);河南省科技发展计划项目(172102410028)

摘　　要：用偶联剂KH570作修饰剂,采用液相原位表面修饰技术制备改性纳米二氧化硅,并考察其在溶聚丁苯橡胶(SSBR)/顺丁橡胶(BR)并用胶中的应用。结果表明:与未改性纳米二氧化硅相比,改性纳米二氧化硅在橡胶基体中的分散性较好,与橡胶的相容性提高,团聚减弱;改性纳米二氧化硅/SSBR/BR复合材料的物理性能和耐磨性能提高,Payne效应减弱;修饰量为50 mmol·kg^(-1)的改性纳米二氧化硅/SSBR/BR复合材料物理性能、耐热老化性能和耐磨性能最好。The modified nano silica was prepared by liquid phase in-situ surface modification with coupling agent KH570 as a modifier,and its application in SSBR/BR blends was studied. The results showed that,compared with the unmodified nano silica,modified nano silica had better dispersion in the rubber matrix,improved compatibility with rubber and reduced agglomeration. In addition,the physical properties and wear resistance of modified nano silica/SSBR/BR composites were improved and Payne effect was weakened. Among the composites,the composite containing the modified nano silica with the modifier amount of 50 mmol·kg^（-1） showed the best physical properties,heat aging resistance and wear resistance.

关 键 词：溶聚丁苯橡胶 顺丁橡胶 纳米二氧化硅 原位改性 耐磨性能 PAYNE效应 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ333.1