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通过低能量功能端基的表面富集作用，研究了聚苯乙烯（ＰＳ）薄膜在聚甲基丙烯酸甲酯（ＰＭＭＡ）表面上的铺展和润湿动力学．用光学显微镜跟踪了ＰＳ薄膜的润湿行为，并对高分子熔体膜中非连续部分尺寸的增大速率进行了测定．分别用ＸＰＳ和ＡＦＭ对ＰＳ薄膜的表面组成和ＰＳ液滴的平衡接触角进行了测定．发现具有低表面能的氟碳端基在薄膜表面富集使ＰＳ薄膜的表面张力下降，并使ＰＳ液滴在ＰＭＭＡ表面上的平衡接触角减小，从而使高分子熔体膜中非连续部分尺寸的增长速率下降，得到了与液液界面铺展和润湿理论一致的实验结果．
Through the surface enrichment of functional end groups with low energy, the spreading and wetting kinetics of polystyrene (PS) film on the surface of polymethylmethacrylate (PMMA) were investigated. The wetting behavior of the PS films was observed with an optical microscope and the rate of increase of the discontinuity size in the polymer melt film was measured. The surface composition of PS films and the equilibrium contact angles of PS droplets were measured by XPS and AFM, respectively. It is found that the fluorocarbon terminal group with low surface energy is enriched on the surface of the film to reduce the surface tension of the PS film and reduce the equilibrium contact angle of PS droplets on the surface of the PMMA so that the discontinuous part of the polymer melt film The growth rate of size decreases, and the experimental results consistent with the theory of liquid-liquid interface spreading and wetting are obtained.