表面自由能的计算方法及其对材料表面性能影响机制的研究现状

Research Progress of Surface Free Energy′s Computing Methods and the Influence on the Properties of Material Surface

中文关键词: 表面自由能 Young方程 接触角

英文关键词: surface free energy, Young equation, contact angle

中文摘要:

      表面自由能是材料表面能量状态的一种描述,对材料的诸多性能有很大的影响。用于表面自由能计算的方法主要包括:Fowkes法、Owens-Wendt-Kaelble法、van Oss法以及Wu法等,每种方法都有其特点和计算形式。目前,表面自由能的计算方法多数是基于Young方程推导而来,其中的基本物理量接触角θ是表征自由能的一个重要指标。对于接触角θ的测量,同样存在多种方式,如量角法、量高法以及测力法等。从表面自由能计算方法出发,系统地总结了表面自由能对材料结合强度、润湿性能及其他性能的影响,综述了国内外学者对材料表面自由能的研究现状。最后对表面自由能未来的研究方向提出了展望。

英文摘要:

      Surface free energy is a represent of the materials′ energy states,for the properties of materials there is a great influence. The ways of calculation for the surface free energy include Fowkesequation, Owens-Wendt-Kaelbleequation, van Oss equation and Wu equation. Each method has its features and forms. At present, the evaluated methods of the surface free energy are based on the Young equation. The contact angle θ is an important physical quantity. For the contact angle θ, there are also many ways to measure. For example, it can be evaluated by angle-measurement method, height-measurement method or force-measurement method. Started with the aspect of calculation methods, the effects of surface free energy on the materials′ adhesive strength, wetting character and other properties are summarized systematically, and the research progress of surface free energy of material is summarized. Finally, the research direction of surface free energy is put forward.