Exploration to generate atmospheric pressure glow discharge plasma in air  

作　　者：Wenzheng LIU Chuanlong MA Shuai ZHAO Xiaozhong CHEN Tahan WANG Luxiang ZHAO  Zhiyi LI  JJangqiNIU Liying ZHU Maolin CHAI 刘文正;马传龙;赵帅;陈晓中;王踏寒;赵潞翔;李治一;牛江奇;祝莉莹;柴茂林(School of Electrical Engineering, Beijing Jiaotong University)

机构地区：School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, People＇s Republic of China

出　　处：《Plasma Science and Technology》2018年第3期49-62,共14页等离子体科学和技术（英文版）

摘　　要：Atmospheric pressure glow discharge（APGD） plasma in air has high application value. In this paper, the methods of generating APGD plasma in air are discussed, and the characteristics of dielectric barrier discharge（DBD） in non-uniform electric field are studied. It makes sure that APGD in air is formed by DBD in alternating current electric field with using the absorbing electron capacity of electret materials to provide initial electrons and to end the discharge progress. Through designing electric field to form two-dimensional space varying electric field and three-dimensional space varying electric field, the development of electron avalanches in airgap is suppressed effectively and a large space of APGD plasma in air is generated. Further,through combining electrode structures, a large area of APGD plasma in air is generated. On the other hand, by using the method of increasing the density of initial electrons, millimeter-gap glow discharge in atmospheric pressure air is formed, and a maximum gap distance between electrodes is 8 mm. By using the APGD plasma surface treatment device composed of contact electrodes, the surface modification of high polymer materials such as aramid fiber and polyester are studied and good effect of modifications is obtained. The present paper provides references for the researchers of industrial applications of plasma.Atmospheric pressure glow discharge（APGD） plasma in air has high application value. In this paper, the methods of generating APGD plasma in air are discussed, and the characteristics of dielectric barrier discharge（DBD） in non-uniform electric field are studied. It makes sure that APGD in air is formed by DBD in alternating current electric field with using the absorbing electron capacity of electret materials to provide initial electrons and to end the discharge progress. Through designing electric field to form two-dimensional space varying electric field and three-dimensional space varying electric field, the development of electron avalanches in airgap is suppressed effectively and a large space of APGD plasma in air is generated. Further,through combining electrode structures, a large area of APGD plasma in air is generated. On the other hand, by using the method of increasing the density of initial electrons, millimeter-gap glow discharge in atmospheric pressure air is formed, and a maximum gap distance between electrodes is 8 mm. By using the APGD plasma surface treatment device composed of contact electrodes, the surface modification of high polymer materials such as aramid fiber and polyester are studied and good effect of modifications is obtained. The present paper provides references for the researchers of industrial applications of plasma.

关 键 词：dielectric barrier discharge electric field distribution atmospheric pressure glow discharge plasmas 

分 类 号：O461[理学—电子物理学] O53[理学—物理]