ＭＲ流体における磁性体の分離抑制に対する材料面からのアプローチ

-磁気駆動機能材料のロボット諸機構に対する最適化設計-

抄録

We have already reported that nanoparticles and PO-type dispersion media are useful for suppressing the separation of magnetic materials in MR fluids. In particular, a structure design represented by the bond chain length and the number of amide groups in the PO type dispersion medium is important. Also, reducing the difference in specific gravity between the magnetic material and the dispersion medium effectively worked. In the test, a fluorine-based medium having a specific gravity of about twice that of a conventional hydrocarbon-based medium was used.