Preparation and properties of modified polytetrafluoroethylene fiber by oxidation self-polymerization of dopamine

被引：0
|
作者：
Jia H. [1 ]
Jiang Z. [1 ]
Ma J. [1 ]
Jiang L. [1 ]
Chen S. [1 ]
机构：
[1] College of Textiles and Clothing, Qingdao University, Qingdao, 266071, Shandong
来源：
Fangzhi Xuebao/Journal of Textile Research | 2019年 / 40卷 / 01期
关键词：
Binding fastness; Dopamine; Hydrophilicity; Polytetrafluoroethylene;
D O I：
10.13475/j.fzxb.20180301705
中图分类号：
学科分类号：
摘要：
In order to improve the surface performance in hydrophilicity of polytetrafluoroethylene fibers, dopamine was employed to modify polytetrafluoroethylene fibers by oxidation self-polymerization. The effect of different treatment time for modifying polytetrafluoroethylene fibers was analyzed. Scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectrometer and water contact angle (WCA) tester were employed to analyze the surface morphology and the chemical structures of the modified polytetrafluoroethylene fibers. The binding fastness of the fibers to dopamine was analyzed by testing the elution absorbance of the modified fibers in different solutions.The results show that a dense layer of polydopamine is formed on polytetrafluoroethylene fibers with the increase in modification time, and the WCA decreases gradually from 120° to the platform of 69° when the treatment time is up to 24 h. The modified polytetrafluoroethylene fibers introduces hydrophilic groups such as -COOH and -NH2, and the hydrophilicity of the fibers are improved obviously. The binding fastness between fiber and polydopamine is stable. Copyright No content may be reproduced or abridged without authorization.
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页码：14 / 18
页数：4
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