A high-performance magnetorheological material: preparation, characterization and magnetic-mechanic coupling properties
A high-performance magnetorheological material: preparation, characterization and magnetic-mechanic coupling properties
复制标题
高性能磁流变材料：制备、表征及磁力耦合性能
DOI：
10.1039/c1sm05301a
复制
发表时间：
2011-01-01
期刊：
影响因子：
3.4
通讯作者：
Fan, Yanceng
中科院分区：
文献类型：
--
作者：
Xu, Yangguang;Gong, Xinglong;Fan, Yanceng
通过将铁颗粒分散到塑料聚氨酯（PU）基体中，开发了一种新型高性能磁流变材料，称为磁流变塑性体（MRP）。系统测试了MRP材料的动态性能（包括储能模量和损耗因数），并分析了铁颗粒含量和磁场的影响。结果发现，铁颗粒重量分数为80%的各向异性MRP产品（A-MRP-80）表现出较高的动态性能：最大磁致储能模量为6.54 MPa；相对MR效果高达532%；通过调整磁场，损耗因子可降至0.03。这种MRP比之前报道的磁流变弹性体（MRE）表现出更高的磁流变性能。提出了其高磁流变性能的机理，并讨论了铁颗粒分布和温度对动态性能的影响。
A novel high-performance magnetorheological material, named as magnetorheological plastomer (MRP), was developed by dispersing iron particles into a plastic polyurethane (PU) matrix. The dynamic properties (including storage modulus and loss factor) of the MRP material were systematically tested and the influences of the iron particle content and magnetic field were analyzed. It is found that the anisotropic MRP product with 80% iron particle weight fraction (A-MRP-80), shows a high dynamic property: the maximum magneto-induced storage modulus is 6.54 MPa; the relative MR effect reaches as high as 532%; the loss factor can be reduced to 0.03 by adjusting magnetic field. This kind of MRP shows a much higher magnetorheological performance than the previously reported magnetorhelogical elastomer (MRE). The mechanism for its high MR performance was proposed and the influence of the iron particle distribution and temperature on the dynamic properties were discussed.