CAJ | 학술논문

对流体在固体表面超铺展特性的研究进展进行了综述，总结了具有超铺展特性的动态湿润体系、超铺展特性的影响因素、内在机理以及实验关联式建立和数值模拟方法。部分丙硅氧烷类和烷基乙氧基化物类以及少数离子型表面活性剂溶液具有超铺展特性，浓度和固体表面能是超铺展的重要影响因素。气液界面的浓度 Marangoni效应被认为是超铺展过程的控制因素，表面活性剂在气液、固液和三相接触线前缘固气界面的输运和吸附对浓度Marangoni 效应有重要影响。分析认为，实验方面未来应拓展实验体系，建立超铺展产生的判据；深入研究宏观影响因素以及微观输运和吸附机理，同时考虑外加物理场影响，为超铺展的实际应用奠定基础。理论方面需综合考虑表面活性剂向界面的输运、吸附对界面性质的作用规律以及浓度Marangoni效应的影响，借鉴相对成熟的牛顿流体动态湿润理论，建立描述超铺展特性的全过程理论模型。数值模拟方面应以分子动力学模拟为基础建立表面活性剂输运和界面吸附的微观物理模型，将其引入流体动力学模型，实现对超铺展过程精确定量化的描述。本文还给出了可能的超铺展体系铺展全过程的物理图景。
대류체재고체표면초포전특성적연구진전진행료종술，총결료구유초포전특성적동태습윤체계、초포전특성적영향인소、내재궤리이급실험관련식건립화수치모의방법。부분병규양완류화완기을양기화물류이급소수리자형표면활성제용액구유초포전특성，농도화고체표면능시초포전적중요영향인소。기액계면적농도 Marangoni효응피인위시초포전과정적공제인소，표면활성제재기액、고액화삼상접촉선전연고기계면적수운화흡부대농도Marangoni 효응유중요영향。분석인위，실험방면미래응탁전실험체계，건립초포전산생적판거；심입연구굉관영향인소이급미관수운화흡부궤리，동시고필외가물리장영향，위초포전적실제응용전정기출。이론방면수종합고필표면활성제향계면적수운、흡부대계면성질적작용규률이급농도Marangoni효응적영향，차감상대성숙적우돈류체동태습윤이론，건립묘술초포전특성적전과정이론모형。수치모의방면응이분자동역학모의위기출건립표면활성제수운화계면흡부적미관물리모형，장기인입류체동역학모형，실현대초포전과정정학정양화적묘술。본문환급출료가능적초포전체계포전전과정적물리도경。
The research progress of super-spreading of fluids on solid substrate is reviewed. The super-spreading systems are summarized, and the influence factors, inner mechanism,experimental correlation model and numerical simulation method are also presented. Several trisiloxane or ethoxylated surfactants and a few ionic surfactant solutions have super-spreading phenomenon on corresponding solid substrates, and surfactant concentration and solid surface energy have crucial influence on super-spreading. The Marangoni effect arising from the concentration difference along the vapor liquid interface is recognized as the key mechanism controlling super-spreading. And the surfactant transportation and adsorption on vapor-liquid, solid-liquid and solid-vapor interfaces have great influence on the Marangoni effect. The research fields for the future are also analyzed. With respect to experimental investigation, the experimental systems should be extended and the criteria for super-spreading should be established. The macroscopic influence factors should be taken into full account. With respect to theoretical investigation, the Marangoni effect as well as the interfacial properties alteration based on surfactant transportation and adsorption need to be fully considered, a full scale theoretical model could be established based on the theoretical achievement in Newtonian fluid. With respect to numerical simulation, accurate transportation and adsorption model should be established from molecular dynamics simulation and then introduced into the hydrodynamic model to make a precise super-spreading simulation. A possible schematic diagram of the whole spreading process on hydrophobic substrate of super-spreaders is also proposed.