The Influence of Base Oil and Thixotropy on Magnetorheological Property of MRF
Adopting carbonyl iron powder and silicone/mineral oil as suspend phase and dispersed phase separately, and silica, kaolin as lubricant additives, magnetorheological (MR)fluid was prepared by ball milling.The apparent viscosity of base oil and shear stress were measured on a modified rotational viscometer.The experimental results demonstrated that an appropriate viscosity of base oil contributed to the rheology of MRF.Adding a small amount of thixotropy into MRF had little influence on zero-field viscosity, which facilitated the application of MRF to maintain adequate liquidity.Under low shear rate conditions, the shear stress was improved by adding thixotropy to some extent, especially in the mineral oil-based magnetorheological fluid, in which the role of silica was superior to kaolin.
Magnetorheological effect Base oil thixotropy Shear stress Shear strain rate
Jian-jian Yang Hua Yan Zhi-de Hu Shi-xiang Xu
Logistic engineering University,Chongqing,China
国际会议
2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)
昆明
英文
19-24
2012-11-09（万方平台首次上网日期，不代表论文的发表时间）