东南大学学报（自然科学版）Issue(6)：1161-1165,5.DOI:10.3969/j.issn.1001-0505.2014.06.012
硅表面微结构对表面润湿方向性影响的分子动力学研究
Effects of surface microstructure on wetting direction of silicon substrates by molecular dynamics study
摘要
Abstract
Molecular dynamics simulation is used to study the wetting effects of silicon surface mi-crostructure on the wetting direction of microstructure.The spreading direction of water droplets on surfaces of three different microstructures,together with the influence of the size of micro-structures on the surface,are discussed.The results show that there is a critical width value for different micro-structures.A hydrophobic surface is formed when the microstructure width is smaller than its critical size.Otherwise,a hydrophilic surface is formed.When a surface is hydrophobic,the spread of wa-ter droplet is isotropic,showing a sphere shape approximately in a top view after it is stable.When a surface is hydrophilic,the micro-droplet spreads anisotropically,leading to different special steady shapes due to the difference of microstructure shape.关键词
分子动力学/表面润湿性/表面微结构Key words
molecular dynamics/surface wetting/surface micro-structure分类
机械制造引用本文复制引用
王玉娟,郭亚杰,裘英华,陈云飞..硅表面微结构对表面润湿方向性影响的分子动力学研究[J].东南大学学报（自然科学版）,2014,(6):1161-1165,5.基金项目
国家自然科学基金资助项目（51345012）． （）
