Electrorheological fluids materials, phenomena, applications
Polimery 2003, No 11-12, 743
A review on electrorheology i.e. reversible effect of increase in viscosity of some fluids (so called ER fluids), subjected to external electric field, is presented. The problem is described taking into account a division of fluids to heterogeneous ones (the suspensions of ground solid polar polymers in liquid non-polar polymer matrices) and homogeneous ones (including liquid crystalline polymers). There were described the compositions and characteristics of both types of ER fluids (Table 1 and 2), the factors infiuencing ER effect (Figs. 1 and 4) and mechanisms of this phenomenon as well as its models. A wide range of applications of electrorheologicai systems as „intelligent” materials (Fig. 5) was also presented.
Keywords: heterogeneous electrorheoiogical fluids, homogeneous electrorheological fluids, compositions, characteristics, application