Surface modification of polyethylene terephthalate films using dielectric barrier discharge driven by repetitive nanosecond pulses

被引：1

作者：

Zhang C. ^{[1
,2
]}

Shao T. ^{[1
,3
]}

Yu Y. ^{[1
,2
]}

Long K. ^{[1
,2
]}

Wang J. ^{[1
]}

Zhang D. ^{[1
]}

Yan P. ^{[1
]}

Zhou Y. ^{[3
]}

机构：

[1] Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190

[2] Graduate University of Chinese Academy of Sciences

[3] State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University

来源：

Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 03期

关键词：

Dielectric barrier discharge; Gas discharge; Nanosecond pulse; Repetition rate; Surface modification;

D O I：

10.3788/HPLPB20102203.0539

中图分类号：

学科分类号：

摘要：

Surface treatment of polyethylene terephthalate(PET) films for improving the hydrophilicity using dielectric barrier discharge(DBD) excited by unipolar nanosecond pulses is presented. Homogeneous and filamentary discharges are obtained under certain experimental conditions and then used to modify the surface of PET films. The properties of PET films before and after treatment are characterized with water contact angle measurement, atomic force microscope and X-ray photoelectron spectroscope. The experimental results show that static water contact angles decrease evidently after DBD plasma treatment and the observed contact angle changes from 78° for the untreated samples to 25° after treatment. However, the decrease of contact angles is not continuous and it will reach a saturation state after certain treatment time. The improvement of surface hydrophilicity can be attributed to the enhancement of surface roughness and the introduction of oxygen-containing polar functional groups. In contrast with the filamentary DBD treatment, the homogenous DBD is more effective in PET surface treatment.

引用

页码：539 / 544

页数：5

共 19 条

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