Experimental study of the independence of diffusion and hydrodynamic permeability coefficients in collodion membranes.
Experimental study of the independence of diffusion and hydrodynamic permeability coefficients in collodion membranes.
复制标题
DOI：
10.1085/jgp.43.3.523
复制
发表时间：
1960-01
期刊：
影响因子：
--
通讯作者：
MAURO A
中科院分区：
文献类型：
--
作者：
ROBBINS E;MAURO A
在讨论跨膜转运时，通常提到的两个参数是“扩散渗透系数”和“流体动力学渗透系数”。“在这项研究中，这两个系数的大小是通过实验确定的不同孔隙率的火棉胶膜。流体动力学渗透率是占主导地位的，而收敛的两个渗透率往往获得作为膜变得不那么粗糙。利用得到的通量数据计算了“平均孔径”，并对这些计算的意义进行了解释。这两个系数之间的关系和跨膜输送处理的不可逆热力学系统进行了讨论。
The two parameters usually invoked when discussing transport across membranes are the "diffusion permeability coefficient" and the "hydrodynamic permeability coefficient." In this study the magnitude of these two coefficients is established experimentally for collodion membranes of differing porosities. The hydrodynamic permeability is predominant while convergence of the two permeabilities tends to obtain as the membranes become less coarse. The flux data obtained are used to calculate "average pore diameter" and the meaningfulness of these calculations is interpreted. The relationship between the two coefficients and transport across membranes as treated by the system of irreversible thermodynamics is discussed.