膜科学与技术

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Dynamics of Spontaneous Wetting of Polyvinylidene Fluoride/Polyethylene Terephthalate Composite Membrane

Authors： XU Chenhan, DING Zhongwei, LIU liying

Units： College of Chemical Engineering，Beijing University of Chemical Technology，Beijing 100029， China

KeyWords： composite membrane; spontaneous wetting; wetting dynamics

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2018,38(6):8-13

Abstract：

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.

Funds：

项目来源“国家自然科学基金”（21576011）

AuthorIntro：

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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