摘要
综述了超铺展(superspreading)领域的基础研究及最新进展。在自然界中,液滴在很多表面上能完全快速铺展,这一特殊现象是在20世纪六十年代发现的。自此便开始对这类现象进行集中研究,但时至今日超铺展的机理仍未了解透彻。本综述详细调研了过去25年里超铺展方面的基础文献,并列出与超铺展剂相关的一部分结果。超铺展方面的文献可分为如下几组:①关于三硅氧烷表面活性剂的研究工作;②关于超铺展机理的研究工作;③分子动力学模拟;④关于三硅氧烷表面活性剂对薄液膜的影响的研究工作。过去十年里有许多综述类文章重点收录前两类工作。对于后两类工作,即分子动力学模拟和三硅氧烷表面活性剂对薄液膜的影响,尽管从科学角度来看很重要,但研究工作仍较少。A. Sankaran等研究了超铺展剂对矩形框内泡沫液膜的影响,确认了超铺展剂在泡沫液膜内导致强烈的Marangoni效应。常规表面活性剂从未观察过如此强烈的Marangoni效应。结合A.Sankaran等人对超铺展剂和非超铺展剂对泡沫薄膜的影响的差别的研究,本综述将对前述4类工作做进一步调研和搜集,这对于润湿(wetting)、反润湿(de-wetting)和超铺展领域的初学者和专家都很有帮助。
引文
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