大气压重频纳秒脉冲放电对尼龙纤维的表面改性  

Surface Modification of Nylon Fiber Using Atmospheric Repetitive Nanosecond Pulse Discharge

作　　者：李黎[1] 彭明洋 腾云[2] 程勇[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074 [2]国网江苏省电力公司电力科学研究院,南京211103

出　　处：《高电压技术》2016年第3期753-761,共9页High Voltage Engineering

基　　金：国家自然科学基金(51107049)~~

摘　　要：纤维织物的等离子体表面改性有时需要较大面积或体积的低温等离子体环境以提高效率,为此设计了一种同轴多棒电极结构的重频纳秒脉冲放电发生器,能够在无阻挡介质的大气压空气中稳定地产生较大体积的低温弥散等离子体。用这种等离子体对不同目数的尼龙66纤维进行处理。采用垂直芯吸效应法测量了不同放电条件下尼龙表面亲水性能的变化。使用原子力显微镜和X射线光电子能谱分别观察尼龙表面微观结构、极性官能团种类和数量的变化。结果表明:纳秒脉冲放电等离子体能明显地使尼龙66纤维发生表面刻蚀,表面粗糙度增加,同时增大表面能,改善亲水性能。另外,就弥散等离子体处理时间和脉冲重复频率对处理效果的影响开展了比较研究。To study the application of large-scale plasma surface modification in fabric,we designed a repetitive nanosecond-pulse diffuse discharge reactor using multirod-to-cylinder electrode configuration, which would generate a large-scale of diffuse non-thermal plasmas steadily at atmospheric pressure in the absence of any barrier dielectric materials. We used this reactor to treat the PA66 fiber with the mesh number being varied. The experiments of wicking property were performed to measure the hydrophilicity changes of PA66 treated under different discharge conditions. Meanwhile, the modified PA66 fibers were analyzed by X-ray photoelectron spectroscopy（XPS） and atomic force microscopy（AFM） to detect the changes in surface microstructure and the effect on quantities and types of polar functional groups, respectively. Moreover, the influences of treatment time and treatment frequency were investigated under different discharge conditions.The results show that the plasma can change the surface of PA66 and improve the hydrophilicity.

关 键 词：纳秒脉冲 大气压空气 弥散放电 尼龙66 表面改性 亲水性 芯吸效应 

分 类 号：TS195.54[轻工技术与工程—纺织化学与染整工程]