Molecular dynamics simulations based on a coarse-grained, bead-spring model were adopted to investigate the structure and spreading properties of hard disk lubricants functional perfluoropolyether ( PFPE) on amorphous carbon surfaces. 采用基于粗粒珠簧模型的分子动力学模拟方法,研究磁盘润滑膜极性全氟聚醚(Perfluoropolyether,简称PFPE)在无定形碳表面的结构和铺展特性。