Orihara Hiroshi, Nishimoto Yuki, Aida Kohei, Na Yang Ho
Division of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Feb;83(2 Pt 2):026302. doi: 10.1103/PhysRevE.83.026302. Epub 2011 Feb 7.
We have investigated the structural change of an immiscible blend consisting of two polymers with equal viscosity subjected to a step electric field under shear flow. During the process, three-dimensional images were successfully acquired with a confocal scanning laser microscope, and at the same time, the transient shear stress was also measured. From the images, the interface tensor was calculated. In a blend of polymers with equal viscosity, the total shear stress may consist of the viscous, interfacial, and electric stresses. An experiment was performed to separate these stresses, and the results are discussed in terms of the interface tensor.
我们研究了由两种具有相同粘度的聚合物组成的不相容共混物在剪切流作用下受到阶跃电场时的结构变化。在此过程中，利用共聚焦扫描激光显微镜成功获取了三维图像，同时还测量了瞬态剪切应力。根据这些图像计算出了界面张量。在具有相同粘度的聚合物共混物中，总剪切应力可能由粘性应力、界面应力和电场应力组成。进行了一项实验来分离这些应力，并根据界面张量对结果进行了讨论。
