Viscosity of two-dimensional suspensions
Viscosity of two-dimensional suspensions
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DOI：
10.1103/physrevlett.88.168102
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发表时间：
2002-04-22
影响因子：
8.6
通讯作者：
Zasadzinski, JA
中科院分区：
文献类型：
--
作者：
Ding, JQ;Warriner, HE;Zasadzinski, JA
在一系列条件下，脂质和表面活性剂单层表现出连续液体中离散固体域的共存。这样的单层的表面剪切粘度mu（s）坍缩到单个曲线上：mu（s）/mu（so）= [1 -（A/A（c））]（-1），其中mu（so）是液相的粘度，A是通过荧光显微镜测量的固相的面积分数，并且A（c）是临界固相分数。这种比例关系直接类似于具有长程排斥相互作用的溶剂中的球体的三维分散，其中面积分数取代体积分数。
Over a range of conditions, lipid and surfactant monolayers exhibit coexistence of discrete solid domains in a continuous liquid. The surface shear viscosity, mu(s), of such monolayers collapses onto a single curve: mu(s)/mu(so) = [1 - (A/A(c))](-1) , in which mu(so) is the viscosity of the liquid phase, A is the area fraction of the solid phase measured by fluorescence microscopy, and A(c) is a critical solid phase fraction. This scaling relationship is directly analogous to that of three-dimensional dispersion of spheres in a solvent with long-range repulsive interactions, with area fraction replacing volume fraction.