介质阻挡放电（DBD）处理对聚偏氟乙烯（PVDF）基共聚物介电性能的影响。

Effect of Dielectric Barrier Discharge (DBD) Treatment on the Dielectric Properties of Poly(vinylidene fluoride)(PVDF)-Based Copolymer.

作者信息

Liu Jie, Zhou Yang, Yi Kewang, Zhang Shihai, Shao Tao, Zhang Cheng, Chu Baojin

机构信息

CAS Key Laboratory of Materials for Energy Conversion and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China.

Strategic Polymer Sciences, Inc., 200 Innovation Boulevard, State College, PA 16803, USA.

出版信息

Polymers (Basel). 2020 Jun 18;12(6):1370. doi: 10.3390/polym12061370.

Understanding the mechanism of dielectric breakdown is important for improving the breakdown field of a polymer. In this work, dielectric barrier discharge (DBD) treatment was applied to one surface of P(VDF-CTFE) (vinylidene fluoride-chlorotrifluoroethylene) film, and the dielectric properties of the film were studied. When the treated surface was connected to the high potential side of the power source for the breakdown test, the breakdown field of the treated film was significantly reduced compared to that of the pristine film. Based on the characterization results for the surface chemistry and morphology, it was proposed that the phenomenon was caused by the combined effects of hole injection from the metal electrode and the damage of polymer chains near the surface of the polymer film after the DBD treatment process.