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.
作者
李昭
刘磊
杨艳平
刘豫皖
程茹
吴晓辉
卢咏来
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)
出处
《橡胶工业》
CAS
2020年第3期187-191,共5页
China Rubber Industry
