常压N2+H2O气液DBD等离子体处理PP无纺布的超亲水性研究  

Superhydrophilicity of PP Nonwoven Fabric Modified with Atmospheric Gas-Liquid DBD Plasma

作　　者：张燕 徐庆南 孔祥茹 孙浩 杨德正[2] 孙岩洲[4] 明平美[3] Zhang Yan;Xu Qingnan;Kong Xiangru;Sun Hao;Yang Dezheng;Sun Yanzhou;Ming Pingmei(School of Electronic Information and Electrical Engineering,Huzhou University,Huizhou 516007,China;Key Lab of Materials Modification(Dalian University of Technology),Ministry of Education,Dalian 116024,China;School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,China;School of electrical Engineering and Automatic,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]惠州学院电子信息与电气工程学院,惠州516007 [2]大连理工大学三束材料改性教育部重点实验室,大连116024 [3]河南理工大学机械与动力工程学院,焦作454000 [4]河南理工大学电气工程与自动化学院,焦作454000

出　　处：《真空科学与技术学报》2019年第9期767-774,共8页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金项目(11405044,U1204506);惠州学院博士科研启动项目

摘　　要：采用接触式气液介质阻挡放电装置,采用常压N2和N2+去离子水(H2O)两种介质阻挡放电等离子体对PP无纺布的表面进行改性研究,实验结果表明PP无纺布经N2+H2O等离子体处理60 s后表面出现了超亲水,其表面水接触角降为0°。但是经N2等离子体处理60 s,表面接触角由未处理时的115.8°降低至62°,并未出现超亲水。通过扫描电镜、X射线光电子能谱的对比分析发现,PP经N2+H2O等离子体处理60 s后,表面出现粘连、刻蚀,表面C1s的含量由原来的96.7%下降到31.8%,同时表面O1s和N1s的含量分别增加到38.4%和29.8%,比PP经N2等离子体处理60 s后C1s多降低20.8%,而O1s和N1s的含量分别多增加了12.7%和8.1%,并且PP表面分子出现明显的交联;而FTIR-ATR的结果进一步表明,PP经N2+H2O等离子体处理60 s后表面接入更多的-OH,从而导致表面超亲水。We experimentally addressed the surface modification of polypropylene(PP)non-woven fabric with atmospheric gas-liquid dielectric barrier discharge(DBD)plasma.The influence of the nitrogen+deionized water DBD plasma on the microstructures and wettability of the PP fabrics was investigated with scanning electron microscopy,X-ray photoelectron spectroscopy and Fourier transform infrared attenuated total reflection(FTIR-ATR)spectroscopy.The results show that the N2+H2O DBD plasma makes the difference.For instance,modified for 60 s,the PP fabric had a water-contact angle of 0°,showing a super-hydrophilicity,possibly because of high-OH density.The content of C1 s decreased from 96.7%to 31.8%,while contents of O1s and N1s increased to 38.4%and 29.8%,respectively.In addition,plasma-etching,surface-roughening,deformation,cracking and cross-linking of individual PP fibers were observed.When it comes to enhancement of hydrophilicity,N2+H2O plasma significantly outperforms N2 plasma.

关 键 词：气液等离子体 介质阻挡放电 表面改性 超亲水 

分 类 号：X703[环境科学与工程—环境工程] O539[理学—等离子体物理]