Membrane Science and Technology

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Preparation of hydrophilic PVDF hollow fiber by ozone modification method

Authors： ZHAO Qiang¹ PAN Kai WANG Lei CAO Bing²

Units： College of Material Science and Engineering, Beijing University of Chemical Technology

KeyWords： hollow fiber; ozone; hydrophilic; dry-wet spinning

ClassificationCode：TQ050.4+25

year,volume(issue):pagination： 2011, 31(2):78-82

Abstract：

Through the ozone modification method, the polyacrylic-acid chain was successfully grafted onto the PVDF molecular chain by heat-induced graft polymerization, and then the hollow fibers were prepared by dry-wet spinning. This research focused on how the ozone treatment time affected the hydrophilicity of modified PVDF hollow fibers. Experimental results indicated that, comparing with pristine PVDF hollow fiber, the modified PVDF hollow fibers had specific structure, lower water contact angle and higher water flux.

Funds：

教育部科学技术研究重大项目(308003)

AuthorIntro：

赵强(1985—)、男、北京、硕士研究生、北京化工大学、膜材料改性、

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