Response of shear stress to ac electric fields under steady shear flow in a droplet-dispersed phase.
We have measured the response of shear stress to ac electric fields under steady shear flow in the droplet-dispersed phase of an immiscible polymer blend. A characteristic mode was found under steady shear flow, the relaxation frequency of which increased with increasing the shear rate. In the frequency dispersion, a scaling relation derived from dimensional analysis was confirmed to hold. The origin of the mode was investigated on the basis of the Maffettone-Minale (MM) model, in which the droplet shape is described by a second-rank tensor. The frequency dispersion of the response was also calculated using a modified MM model.
Na
Yang Ho
YH
Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
Aida
Kohei
K
Sakai
Ryosuke
R
Kakuchi
Toyoji
T
Orihara
Hiroshi
H
D003198:Computer Simulation; D004574:Electromagnetic Fields; D008956:Models, Chemical; D044367:Phase Transition / Q000528:radiation effects; D011108:Polymers / Q000737:chemistry* / Q000528:radiation effects*; D033081:Shear Strength / Q000528:radiation effects; D012996:Solutions / Q000737:chemistry* / Q000528:radiation effects*
D011108:Polymers; D012996:Solutions