铜表面高疏水薄膜的制备及摩擦学性能的研究  

Fabrication and Tribological Performance of Hydrophobic Films on the Copper Substrate

作　　者：王中乾[1] 万勇[1] 杨椒燕[1] 许桢[1] 蒲吉斌[2] 

机构地区：[1]青岛理工大学机械工程学院,青岛266033 [2]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000

出　　处：《摩擦学学报》2012年第1期53-58,共6页Tribology

基　　金：山东省自然科学基金(Y2008F05);青岛市应用基础研究基金项目(09-1-3-35-jch)资助~~

摘　　要：通过简单两步法在金属铜表面构筑高疏水薄膜,首先金属铜经氢氧化钠化学刻蚀处理后在表面构筑微纳结构薄膜,然后覆盖硬脂酸薄膜以实现高疏水.采用扫描电子显微镜、X-射线光电子谱、傅里叶红外光谱仪和接触角测量仪等手段表征了金属铜表面高疏水薄膜的形成机制和表面形貌,并利用微纳米摩擦磨损试验机研究了高疏水薄膜的减摩耐磨特性.研究结果发现:在氢氧化钠处理导致的表面微织构化效应以及脂肪酸自组装薄膜的纳米润滑效应的联合作用下,金属铜表面形成的高疏水薄膜具有明显的减摩和耐磨特性.The hydrophobic films on copper substrate were fabricated by a simple two-step process.Firstly,nano-structured film was created to roughen copper surface by chemical etching process in the presence of sodium hydroxide.Resultant roughened copper surface was then overcoated with stearic acid to achieve hydrophobicity.Scanning electron microscopy,X-ray photoelectron spectroscopy,FT-IR Microscope and water contact angle measurement have been performed to characterize the morphological feature,chemical composition and hydrophobicity of the surface.The resulting surfaces had a water contact angle as high as ~146° and provide effective friction-reducing and wear protection for copper substrate,due to the combined beneficial effects of nanotexturing of sodium hydroxide treatment and nanolubrication of self-assembled stearic acid overcoat.

关 键 词：摩擦性能 氧化亚铜 自组装技术 化学刻蚀 

分 类 号：TH117.2[机械工程—机械设计及理论]