膜科学与技术

聚偏氟乙烯/聚对苯二甲酸乙二醇酯复合膜的自发浸润动力学研究

作者：徐晨汉，丁忠伟，刘丽英

单位：北京化工大学化学工程学院，北京，100029

关键词：复合膜；自发浸润；浸润动力学

出版年,卷(期):页码： 2018,38(6):8-13

摘要：

通过Matlab对液滴图像进行3D重构，计算了不同浓度二乙醇胺（DEA）在聚偏氟乙烯/聚对苯二甲酸乙二醇酯（PVDF/PET）复合膜孔中的平均接触角，并发现其平均接触角均十分接近90°。将改写的膜孔渗入方程与Matlab算法相结合，模拟了自发浸润的全过程，并发现了复合膜由皮层浸润向支撑层浸润的过渡阶段。根据模拟结果，分析、总结了复合膜自发浸润全过程。

The 3D droplet images were reconstructed by Matlab to calculate the average contact angles formed by diethanolamine (DEA) of different concentrations in the pores of polyvinylidene fluoride/polyethylene terephthalate (PVDF/PET) membrane. It is found that the average contact angle is very close to 90°. Combining the rewritten membrane wetting equation and the Matlab algorithm, the whole process of spontaneous wetting was simulated and the wetting transfer point of the composite membrane was found. Through the results of simulations and experimental results, the entire wetting process of the composite membrane was analyzed and summarized.

第一作者简介：徐晨汉（1993-），男，重庆人，硕士，主要从事膜浸润研究，E-mail：chenhan_xu@yeah.net 通讯作者，E-mail：dingzw@mail.buct.edu.cn

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