预改性片层粘土在溴化丁基橡胶中的应用  

Application of Pre-modified Lamellar Clay in BIIR

作　　者：李昭[1] 刘磊[2] 杨艳平[2] 刘豫皖[2] 程茹 吴晓辉[1] 卢咏来[1] LI Zhao;LIU Lei;YANG Yanping;LIU Yuwan;CHENG Ru;WU Xiaohui;LU Yonglai(Beijing University of Chemical Technology,Beijing 100029,China;Aeolus Tyre Co.,Ltd,Jiaozuo 454000,China)

机构地区：[1]北京化工大学先进弹性体材料研究中心,北京100029 [2]风神轮胎股份有限公司,河南焦作454000

出　　处：《橡胶工业》2020年第3期187-191,共5页China Rubber Industry

摘　　要：研究预改性片层粘土(100份丁苯橡胶纳米复合80份粘土)在溴化丁基橡胶(BIIR)中的应用。结果表明:预改性片层粘土在BIIR中能够实现均匀的纳米分散,粘土片层与橡胶分子链的作用力增强;与未加预改性片层粘土的胶料相比,预改性片层粘土/BIIR复合材料的交联密度减小,正硫化时间缩短,拉伸强度、拉断伸长率和拉断永久变形增大,60℃时的损耗因子减小,气密性明显提高,其具有很高的性价比。The application of pre-modified lamellar clay[SBR/clay(dosage ratio 100/80)nanocomposite]in brominated butyl rubber(BIIR)was studied.The results showed that,uniform nano dispersion of the pre-modified lamellar clay in BIIR was achieved,and the interaction force between the lamellar clay and rubber molecular chain increased.Compared with the compound without the pre-modified lamellar clay,the crosslinking density of the pre-modified lamellar clay/BIIR composite decreased,the optimum curing time was shortened,the tensile strength,elongation at break and permanent deformation at break increased,the loss factor at 60℃decreased,the air tightness was significantly improved.The composite had a high performance cost ratio.

关 键 词：粘土 有机改性 溴化丁基橡胶 复合材料 气密层 动态力学性能 气密性 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ333.6