膜科学与技术

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ClassificationCode：TQ028.8

year,volume(issue):pagination： 2020,40(1):31-36

Abstract：

In this study, poly(vinyl alcohol) (PVA) anti-fouling surface coating layer was constructed onto polyamide nanofiltration membrane via the process of surface coating followed by crosslinking, and the effects of additive hydroxypropyl methylcellulose (HPMC) on the permeability and antifouling property of PVA coating layer were studied. Separation performance evaluation revealed that the pure water flux of polyamide membrane with PVA coating layer was only 46.4 l/m2 h, while with PVA/HPMC coating layer was 54.3 l/m2 h, showing an increase of 17%. This is mainly due to the reduction of the degrees of tacticity and crystalline of PVA coating layer by introducing HPMC. Anti-fouling experiments revealed that both the PVA and PVA/HPMC coating layers could endow the membrane with improved antifouling property and the blending of HPMC had no effect on antifouling property. The results show that adding HPMC could improve the permeability of PVA coating layer while maintaining its excellent anti-fouling performance.

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国家自然科学基金项目（21676256）

AuthorIntro：

第一作者简介：王炎锋（1976.01），男，浙江上虞人，工程师，从事反渗透和纳滤膜材料的制备及应用研究，E-mail：wangyanfeng1976@163.com 通讯作者，E-mail:yuschn@163.com

Reference：

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