NR/SBR并用橡胶基磁敏橡胶的制备及性能的研究  

Preparation and performance of magnetorheological elastomer based on NR/SBR rubber

作　　者：游仕平[1] 钟喜春[1] 游世辉[2] 曾德长[1] 闻立时[1,3] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]九江学院机械工程学院,江西九江332005 [3]中国科学院金属研究所,辽宁沈阳110016

出　　处：《弹性体》2010年第1期1-4,共4页China Elastomerics

基　　金：国家科技部国际科技合作计划项目(2008DFA71270)

摘　　要：通过湿法预处理,用偶联剂KH-570对羰基铁粉进行表面改性,制备了综合性能较好的并用橡胶基实用型磁敏橡胶,研究了羰基铁粉含量对天然橡胶/丁苯橡胶(NR/SBR)并用橡胶基磁敏橡胶性能的影响;同时利用扫描电镜研究了改性羰基铁粉表面和磁敏橡胶复合材料断面的微观结构。结果表明,通过偶联剂改性的羰基铁粉其晶体结构未发生变化,且表面有一层致密的包覆层;以NR/SBR并用橡胶为基体的磁敏橡胶,当羰基铁粉用量为300份时,可表现出较好的机械性能和磁流变效应。A practical magnetorheotogical elastomer（MRE） with good properties was prepared by mixing NR/SBR rubber with surface modified carbonyl iron powders （CIPs）. The influence of the content of CIPs on the MRE performance was investigated. Scanning electron microscopy （SEM） was used to study the microstructures of modified CIPs and the magnetic rubber composites. The results indicated that the crystal structure of the modified CIPs has not changed and the carbonyl iron powder surface is densely covered with coupling agents. The MRE based on the NR/SBR rubber showed good mechanical properties and magneto-rheological effect when the content of CIPs was 300 copies.

关 键 词：磁敏橡胶 机械性能 磁流变效应 并用橡胶 

分 类 号：TQ332[化学工程—橡胶工业] TQ333