磁流变体材料稳定性和润滑性能研究  

Study on stability and lubricating property of magnetorheological fluid

作　　者：刘奇[1] 唐龙[1] 张平[1] 廖昌荣[2] 陈伟民[2] 

机构地区：[1]国家仪表功能材料工程技术研究中心 [2]重庆大学智能结构研究中心,重庆400044

出　　处：《功能材料》2005年第8期1192-1195,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50135030);重庆市自然科学基金资助项目(8414)

摘　　要：通过触变剂与表面活性剂复合使用,同时对磁性悬浮相表面进行适当的处理,并加入适当的固体润滑剂合成了一种稳定性和润滑性能良好的磁流变体材料,该磁流变体材料性能为:0η≤1000mPa.s,τ0.5T≥60kPa,半个月内无明显沉降,无板结,“四球机法”测量其润滑性能为磨斑直径<2.75mm,该类型磁流变液用于磁流变阻尼器200万次振动试验取得了理想的试验效果。In this paper magnetorheological fluid （MRF） with satisfactory performance was made. It was important that the thixotropic agent, surface active agent and solid lubricating agent are added, the surface of magnetizable particles were suitable treated, at the same time,the stability and lubricating property of MRF were analyzed and discussed. The measured viscosity of MRF was low or equal 1000mPa·s,shear stress （τ） at 0.5T magnet field was above 60kPa, with good sedimental stability and lubricating property, the MRF material was used to MRF damper durability test and achieved excellent result.

关 键 词：磁流变液 稳定性 润滑性 

分 类 号：TF125.8[冶金工程—粉末冶金]