摘要
利用辉光放电电解等离子体技术对铜基底表面进行活化,再经硬脂酸修饰,得到铜基底超疏水性材料.考查了Na2SO4浓度、放电电压、放电时间、硬脂酸-甲醇溶液浓度、接枝时间以及接枝温度对超疏水表面性能的影响.用接触角仪、X射线衍射(XRD)、X射线光电子能谱(XPS)、红外光谱(FTIR)对铜表面的润湿性、表面元素组成及结构进行了表征和分析.结果表明,经修饰的铜基底表面具有良好的疏水性,接触角高达155.30°,滚动角小于5°,且稳定性良好.
An advanced oxidation technology,glow-discharge electrolysis plasma,has been successfully used in the fabrication of superhydrophobic copper-surfaces,that is,stearic acid is grafted onto the copper-substrate.To optimize the fabrication conditions,seven important parameters are examined in detail,such as the concentration of supporting electrolyte,stearic acid ethanol solution,discharge voltage,discharge time,species of alcohol,grafting time and temperature.The wettability,structure and ultimate composition of copper substrate are characterized by contact goniometer,X-ray diffraction（XRD）,X-ray photoelectron spectroscopy（XPS）,Fourier transform infrared spectroscopy（FT-IR）,respectively.It is found that under the optimal conditions,the contact angle（CA） for the modified copper-substrate surfaces is up to 155.30° and the sliding angle（SA） less than 5°.
出处
《西北师范大学学报（自然科学版）》
CAS
北大核心
2012年第2期42-46,56,共6页
Journal of Northwest Normal University(Natural Science)
基金
教育部重点科技基金资助项目(00250)
甘肃省自然科学基金资助项目(3ZS041-A25-028
096RJ2A120)
西北师范大学科技创新工程资助项目(NWNU-KJCXGC-01)
关键词
辉光放电电解等离子体
铜基底
超疏水表面
glow-discharge electrolysis plasma
copper substrate
superhydrophobic surface
