| 紫外照射对FOTS自组装分子膜表面特性和摩擦特性的影响 |
| |
| 引用本文： | 张会臣,连峰,关光辉,朱海波.紫外照射对FOTS自组装分子膜表面特性和摩擦特性的影响[J].摩擦学学报,2013,33(5):522-529. |
| |
| 作者姓名： | 张会臣 连峰 关光辉 朱海波 |
| |
| 作者单位： | 大连海事大学 交通运输装备与海洋工程学院, 辽宁 大连 116026;大连海事大学 交通运输装备与海洋工程学院, 辽宁 大连 116026;大连海事大学 交通运输装备与海洋工程学院, 辽宁 大连 116026;大连海事大学 交通运输装备与海洋工程学院, 辽宁 大连 116026 |
| |
| 基金项目： | 国家自然科学基金项目(51275064,50975036)资助. |
| |
| 摘 要： | 利用自组装技术在硅基底制备FOTS自组装分子膜,对FOTS自组装分子膜进行紫外照射.采用接触角测量仪、原子力显微镜(AFM)、傅里叶红外变换光谱仪(FTIR)、X光电子能谱(XPS)和多功能摩擦磨损试验机(UMT)评价薄膜的表面特性和摩擦学特性.结果表明:FOTS自组装分子膜的蒸馏水接触角为109°.紫外照射导致C元素被O3氧化,形成亲水的-COOH末端基团,使其接触角变小,表面粗糙度增大.在微载荷下,FOTS自组装分子膜和经不同时间紫外照射的FOTS自组装分子膜均可降低硅基底的摩擦和磨损.紫外照射后使FOTS自组装分子膜的摩擦系数增大,磨损加剧,这与其表面结构和润湿性变化相关.
|
| 关 键 词： | 硅 自组装分子膜 紫外照射 接触角 摩擦 |
Influence of UV Radiation on Surface Characteristics and Friction Properties of FOTS SAMs |
| |
| ZHANG Hui-chen,LIAN Feng,GUAN Guang-hui and ZHU Hai-bo.Influence of UV Radiation on Surface Characteristics and Friction Properties of FOTS SAMs[J].Tribology,2013,33(5):522-529. |
| |
| Authors: | ZHANG Hui-chen LIAN Feng GUAN Guang-hui and ZHU Hai-bo |
| |
| Institution: | Transportation Equipments and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China;Transportation Equipments and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China;Transportation Equipments and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China;Transportation Equipments and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China |
| |
| Abstract: | 1H,1H,2H,2H-Perfluorooctyltrichlorosilane (FOTS) self-assembled monolayers (SAMs) were deposited on silicon substrate by self-assembled technique. Ultraviolet radiation treatment on FOTS SAMs was conducted. By using contact angle meter, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and UMT-2 tribometer, surface characteristics and tribological properties were evaluated. The experimental results show that the contact angle of distilled water on FOTS SAMs was 109°. The formation of hydrophilic -COOH group due to the oxidation of carbon species by O3 during UV radiation made low contact angle and rough surface. FOTS SAMs with and without radiation had better tribolgical behavior than silicon substrate in micro loads. UV radiation increased friction coefficient of FOTS SAMs and accelerated wear because surface structure and wettability were modified by UV radiation. |
| |
| Keywords: | silicon self-assembled monolayers ultraviolet radiation contact angle friction |
|
| 点击此处可从《摩擦学学报》浏览原始摘要信息 |
| 点击此处可从《摩擦学学报》下载免费的PDF全文 |
|
