为了认识液-液界面的传质过程,提高传质速率,本文基于投影栅线法测量物体三维物体形貌的思想,建立起用于液-液界面传质的实验系统.在该系统下观测到液-液界面传质时界面出现了随机的波动,并且得到了有无微波时图像.借助分形数学对相关的机制做了详细讨论,得出MgO浓度的增加使传质作用增强,电磁场能改变了物质的活性,降低了传质过程的活化能,从而利于传质的进行,微波场的作用可能大于浓度梯度的作用,使传质对浓度的依赖关系减弱.
In order to understand the mass transfer process at the liquid-liquid interface and improve the mass transfer rate,an experiment system was established basing on the ideal of projection grating method which was used to measure shape of the 3D object.The random fluctuation due to the mass transfer at the liquid-liquid interface was observed under the system,and the images were obtained with and without microwave.The related mechanism was analyzed by using the fractal mathematics.The findings show that the mass transfer can be enhanced with the increasing of the MgO concen-tration,electromagnetic field can change the activity of the material,and the activation energy of mass transfer was reduced,which was helpful to the mass transfer.Besides,the role of the microwave field may be greater than the con-centration gradient effect.