【摘要】 使用大气压氮气介质阻挡放电(DBD)等离子体对丙纶熔喷无纺布进行表面处理,通过水接触角测量、傅里叶变换红外反射光谱、扫描电镜和X射线光电子能谱等测试方法研究了等离子体处理前后丙纶熔喷无纺布表面物理和化学特性的变化。研究结果表明,丙纶熔喷无纺布经大气压氮气DBD等离子体处理很短的时间(几秒)后,表面亲水性就可以大大改善;表面出现脱氢现象,同时引入大量的含氧、含氮官能团。此外,还考察了不同外加电压对丙纶无纺布表面改性的影响。更多还原

【Abstract】 The surfaces of non-woven polypropylene (PP) fabric were modified by nitrogen dielectric barrier discharge (DBD) plasma at atmospheric pressure.The influence of the surface modification conditions,such as the discharge voltage,exposure time and barrier width,on its physical and chemical properties was experimentally studied.The non-woven PP fabric,before and after the surface modifications,were characterized with scanning electron microscopy,Fourier transform infrared reflectance spectroscopy and X-ray photoelectron spectroscopy.The results show that the surface modification significantly affects its properties.To be specific,the plasma exposure for a few seconds considerably increases its hydrophilicity,generates a large number of oxygen and nitrogen functional groups,and initiates surface dehydrogenation.更多还原