• TRANSPORT PHENOMENA & FLUID MECHANICS • 上一篇 下一篇
刘俊吉a; 张瑜a; 李国庭b
a School of Science, Tianjin University, Tianjin 300072, China
b School of Chemical & Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
LIU Junjia; ZHANG Yua; LI Guotingb
摘要: A general expression of the dynamic surface adsorption [Г(t)] on the expanding spherical surface was derived by solving the corresponding diffusion equation under different initial and boundary conditions. Different from the result of the still spherical surface, two factors (smaller than 1) appe eared in the equation for the short time adsorption. Using the derived results, the adsorption kinetics of aqueous decanoyl-N-methylglucamine (Mega-10) solution was studied. In the short time region (t→0), a good agreement of experimental results with the theory was reached and the adsorption was controlled by diffusion.