CHARACTERIZATION OF COBALT（Ⅱ ）-PHTHALOCYANINE-METAL IRON COMPOSITES FOR MAGNETORHEOLOGICAL FLUIDS

GONG Rongzhou FANG Liang GUAN Jianguo YUAN Runzhang Wuhan University of Technology

摘 要：<正> Magnetorheological suspension based on 20 （v/v） % CoPc-iron composite particles dispersed in sili-cone oil have been obtained, which exhibited dynamic shear stress up to 2000Pa upon application of external magnetic field at 1300 Oe. The response is faster than 0. 1s with superior reversibility of changes in viscosity induced by external magnetic field at above 12. 5℃. Further, it was found that the MR fluid is in possession of long-term stability a-eainst sedimentation.

关键词：