摘要
由于可通过外加磁场来控制磁敏橡胶的刚度和强度,同时可解决磁流变液颗粒沉降、稳定性差的问题,因此磁敏橡胶成为国内外广泛关注的一种新型智能材料。制备了尼龙帘线增强型天然橡胶/丁苯橡胶(natural rubber/styrenebutadiene rubber,NR/SBR)并用胶基磁敏橡胶,采用Zwick/Roell电子拉力机和力磁耦合动态力学分析仪研究其静态力学性能和动态磁流变效应。结果表明,尼龙帘线的加入可以极大地提高磁敏橡胶的抗拉强度,同时也可提高磁敏橡胶的剪切模量和零场剪切储能模量;当加入三层帘线时,其抗拉强度可达到17.8 MPa,零场剪切储能模量为2.87 MPa;但随着尼龙帘线的增多,其磁流变效应则降低。
Magnetorheological rubber can be controlled its stiffness and strength by the external magnetic field. Meanwhile, it resolved the problem of the particles settling and poor stability of the magnetorheological fluids, so magnetorheological rubber has become a new type of intelligent materials and received the widespread attention at home and abroad. The nylon cord reinforced magnetorheological rubber based on NR/SBR（ natural rubber/styrene butadiene rubber） blend was prepared for the first time, and studied its static mechanical properties and dynamic magnetorheological effect through the Zwick/Roell electronic pull machine and magneto-combined dynamic mechanical analysis. The results show that the tensile strength of magnetorheological rubber can be greatly improved and the shear modulus and the zero-field shear storage modulus of magnetorheological rubber are enhanced by adding the nylon cord, when joined three layers of nylon cord, its tensile strength can be achieved 17.8 MPa and the zero-field shear storage modulus is 2.87 MPa. But, with the increment of nylon cord, its magnetorheological effect is lower.
出处
《机械强度》
CAS
CSCD
北大核心
2012年第3期333-337,共5页
Journal of Mechanical Strength
基金
国家科技部国际科技合作计划项目资助(2008DFA71270)~~
关键词
磁敏橡胶
尼龙帘线
强度增强型
并用胶
Magnetorheological rubber
Nylon cord
Intensity reinforced
Mixing of rubber
