强激光与粒子束, 2014, 26 (4): 045020, 网络出版: 2014-04-24   

纳秒脉冲放电对聚对苯二甲酸乙二酯憎水改性

Hydrophobic modification of polyethylene terephthalate using nanosecond-pulse dielectric barrier discharge
章程 1,2,*许家雨 1,3邵涛 1,2严萍 1,2,4牛铮 1,3周亦骁 1
作者单位
1 中国科学院 电工研究所, 北京 100190
2 中国科学院 电力电子与电气驱动重点实验室, 北京 100190
3 中国科学院大学, 北京 100039
4 电力设备电气绝缘国家重点实验室 (西安交通大学), 西安 710049
摘要
基于自主研制的ns脉冲电源(上升沿约70 ns,脉宽约100 ns)激励介质阻挡放电产生大气压低温等离子体,在CF4气氛下对聚对苯二甲酸乙二酯(PET)表面进行了憎水改性处理,测量了改性前后的薄膜表面的水接触角,给出了CF4气流量、放电电压、处理时间和CF4比例等参数对改性效果的影响规律。结果表明,大气压ns脉冲DBD表面处理能够实现PET材料的憎水性,改性后的PET表面水接触角由66°提高到最大100°。
Abstract
Compared to the traditional method for surface treatment, non-thermal plasmas have advantages such as low pollution, simple process and low cost. In the paper, non-thermal plasmas are generated by dielectric barrier discharge (DBD) excited by China-made nanosecond-pulse generator with a rise time of ~70 ns and a full width at half maximum of ~100ns. Such plasmas are used to modify the hydrophobic of the surface of polyethylene terephthalate (PET) in atmospheric carbon tetrafluoride (CF4). The static water contact angle of the PET surface is measured before and after treatment. The effects of CF4 flow, applied voltage, treatment time and CF4 ratio on modification performance are presented. The results show that the hydrophobic of the PET surface can be achieved using DBD plasmas. The static water contact angle of the PET surface can be up to 100° from 66°.
参考文献

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章程, 许家雨, 邵涛, 严萍, 牛铮, 周亦骁. 纳秒脉冲放电对聚对苯二甲酸乙二酯憎水改性[J]. 强激光与粒子束, 2014, 26(4): 045020. Zhang Cheng, Xu Jiayu, Shao Tao, Yan Ping, Niu Zheng, Zhou Yixiao. Hydrophobic modification of polyethylene terephthalate using nanosecond-pulse dielectric barrier discharge[J]. High Power Laser and Particle Beams, 2014, 26(4): 045020.

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