Hydrophobicity changes of polluted silicone rubber introduced by spatial and dose distribution of plasma jet  

作　　者：Shuang LI Xinzheng GUO Yongqiang FU Jianjun LI Ruobing ZHANG 李爽;郭新正;付永强;李健俊;张若兵(Engineering Laboratory of Power Equipment Reliability in Complicated Coastal Environments,Shenzhen International Graduate School(SIGS),Tsinghua University,Shenzhen 518055,People's Republic of China)

机构地区：[1]Engineering Laboratory of Power Equipment Reliability in Complicated Coastal Environments,Shenzhen International Graduate School(SIGS),Tsinghua University,Shenzhen 518055,People's Republic of China

出　　处：《Plasma Science and Technology》2022年第4期53-60,共8页等离子体科学和技术（英文版）

基　　金：supported by the Intergovernmental International Cooperation in Science and Technology Innovation Program(No.2019YFE0115600);National Natural Science Foundation of China(No.52177152);Science,Technology and Innovation Commission of Shenzhen Municipality(No.JCYJ20180508152057527)。

摘　　要：The hydrophobicity of polluted silicone rubber was improved rapidly under plasma jet treatment.It is an important phenomenon of the interaction between the plasma jet and the porous surface,and shows a wide application prospect in the power system.In this process,the spatial characteristics and dose of plasma jet are very important.Therefore,the variation of hydrophobicity of polluted silicone rubber under plasma jet treatment was studied,and the spatial characteristics and dose of plasma jet on polluted silicone rubber were also investigated in the work.The results show that the surface property(hydrophilic or hydrophobic)depended on the dose of plasma applied to the surface.The effective treated area was a circle,and the contact angles changed along the radial direction of the circle.This was attributable to the diffusion of plasma bullets on the surface and the distribution of plasma species.The plasma dose could be characterized by the energy density of the plasma applied on the surface.With the increase of plasma dose,the surface contact angles first increased rapidly and then decreased gradually.

关 键 词：plasma jet polluted silicone rubber HYDROPHOBICITY plasma dose energy density spatial distribution 

分 类 号：O53[理学—等离子体物理] TQ333.93[理学—物理]