[1]张兴涛,吴广宁,吴旭辉,等.聚酰亚胺薄膜的等离子体改性及其机理探究[J].高压电器,2019,55(09):208-214.[doi:10.13296/j.1001-1609.hva.2019.09.028]
 ZHANG Xingtao,WU Guangning,WU Xuhui,et al.Plasma Modification of Polyimide Film and Its Mechanism[J].High Voltage Apparatus,2019,55(09):208-214.[doi:10.13296/j.1001-1609.hva.2019.09.028]
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聚酰亚胺薄膜的等离子体改性及其机理探究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年09期
页码:
208-214
栏目:
研究与分析
出版日期:
2019-09-30

文章信息/Info

Title:
Plasma Modification of Polyimide Film and Its Mechanism
作者:
张兴涛 吴广宁 吴旭辉 雷毅鑫
(西南交通大学电气工程学院, 成都 610031)
Author(s):
ZHANG Xingtao WU Guangning WU Xuhui LEI Yixin
(College of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)
关键词:
介质阻挡放电 聚酰亚胺 不同材料 不同气隙距离 接触角 表面能 傅 里叶红外光谱
Keywords:
dielectric barrier discharge (DBD) polyimide (PI) different materials different air gap distances contact angle surface energy Fourier transform infrared spectroscopy(FTIR)
DOI:
10.13296/j.1001-1609.hva.2019.09.028
摘要:
为了研究大气压空气介质阻挡放电(dielectric barrier discharge,DBD)对聚酰亚 胺(polyimide,PI)薄膜的表面改性,文中首先利用搭建的介质阻挡放电平台测试了不同材 料、不同气隙距离下的DBD电气特性及其放电图像,并获得了较为均匀的DBD放电模式。之后利 用得到的等离子体对PI薄膜进行不同时间的处理,并测试了其接触角、表面能以及傅里叶红外 光谱(fourier transform infrared spectroscopy,FTIR),揭示了等离子的作用机理。研 究结果表明:相对于玻璃和环氧树脂,陶瓷作为阻挡介质时其放电更为均匀;随着陶瓷间气隙 距离的增大,放电持续时间和放电均匀度均减小,但放电功率密度增大,较小的气隙距离更适 合于聚合物的表面改性;随着等离子体处理时间的增加,PI薄膜表面的接触角减小,而表面能 增加。研究发现,等离子体处理在PI薄膜表面引入的-OH、-NH2等极性亲水基团以及刻蚀造成 的粗糙度增加是其亲水性和表面能增加的主要原因。
Abstract:
To investigate the surface modification of polyimide(PI) film via dielectric barrier discharge(DBD) in air, a dielectric barrier discharge platform was built to measure the electrical characteristics of DBD of different materials under different air gap distances and to obtain corresponding discharge images, and a uniform DBD discharge mode was achieved. Then, PI films were treated with different time using the plasma, and the contact angle, surface energy and Fourier transform infrared spectra(FTIR) were measured.The action mechanism of plasma was also revealed. The results show that: 1)ceramic barrier can achieve more uniform discharge than glass orepoxy resin barrier; 2)with the increase of the air gap distance between ceramics, the duration and uniformity of discharge decrease, but the discharge power density is on the contrary, and smaller air gap distance is more suitable for polymer surface modification; 3) with the increase of plasma treatment time, the contact angle of PI thin film decreases and the surface energy increases; and 4) the polar hydrophilic groups introduced to the surface of PI thin films, such as -OH and -NH2, as well as the increase of roughness caused by plasma etching, are the main reasons for the increase of hydrophilicity and surface energy of PI films.

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备注/Memo

备注/Memo:
收稿日期:2019-01-20; 修回日期:2019-03-24张兴涛(1992—),男,硕士研究生,主要从事变频电机匝间绝缘材料的改性研究(通信作者)。 吴广宁(1969—),男,博士,教授,博士生导师,主要从事高压电气设备的教学与研究工作。
更新日期/Last Update: 2019-09-10