Adsorption Kinetics of Decanoyl-N-methylglucamine at the Expanding Spherical Surface

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） appeared 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.

动态表面吸附的一般表情[f (t)] 在膨胀以后，球形的表面被解决相应散开方程在下面导出不同起始并且边界条件。与仍然球形的表面的结果不同，二个因素(比 1 小) 出现在方程因为短时间 adsorption.Usingthe 导出结果，水的 decanoyl-N-methylglucamine (Mega-10 ) 的吸附动力学答案被学习。在短时间区域(t -> 0 ) ，有理论的试验性的结果的一个好协议被达成，吸附被散开控制。