Surface modification of porous poly(tetrafluoroethylene) film via cold plasma treatment

被引：37
作者：
Shi, Tongna [1 ]
Shao, Meiling [1 ]
Zhang, Hongrui [1 ]
Yang, Qing [1 ]
Shen, Xinyuan [1 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2011年 / 258卷 / 04期
关键词：
Polytetrafluoroethylene; Surface modification; Plasma treatment; Scanning probe microscope; Contact angle; PTFE FILM; ADHESION; POLYTETRAFLUOROETHYLENE;
D O I：
10.1016/j.apsusc.2011.09.110
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, cold plasma technology was applied for the surface modification of porous polytetrafluoroethylene (PTFE) film to improve the hydrophilicity. The surface properties of PTFE, modified by air, helium (He) or acrylic acid (AAc), were investigated with scanning electron microscopy (SEM), scanning probe microscope (SPM), in situ X-ray photoelectron spectroscopy (XPS) and water contact angle measurements. The changes of the surface property before and after plasma treatment were discussed. According to SEM and SPM measurements, the surface roughness increased at different levels after plasma treatment. Compared to air and AAc plasma treatment, the He plasma treatment introduced large amounts of oxygen into the surface, as known from XPS results. Contact angle measurements revealed that the hydrophilicity of the PTFE film surface was greatly improved due to the surface roughness and changes of chemical elements on the PTFE surface. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1474 / 1479
页数：6
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