摘要
超疏水表面因其优异的自洁排水性能可望在高科技领域和日常生活等方面有美好的应用前景。目前通过对荷叶表面微纳结构仿生已达到在亲水材料上制备超疏水表面的准商业化水平。然而,超疏水表面现有制备方法一般都工艺复杂和费用高昂,同时其超疏水性与其他材料性能很难相容,限制了其实际应用。对此,特别需要深入理论研究,优化设计表面微纳结构,同时充分利用外界作用调控其润湿行为,实现其在某些高科技领域的率先应用。针对超疏水表面研究的这些关键问题,重点评述了当前超疏水表面理论研究特别是表面几何设计方面的最新进展,总结了目前国内外制备超疏水表面的流行技术方法,进而讨论了利用外界作用调控超疏水行为的可能性。
Superhydrophobic surfaces are promising for potential applications in high-technology field and daily life because of their excellent water - repellent and self-cleaning properties. At present, by mimicking the micro-nano structures of lotus leaves, it is available to fabricate superhydrophobic surfaces based on hydrophilic materials, which can almost be commercially applicable. However, the fabrication techniques for superhydrophobic surfaces are not only complicated but also expensive, and superhydrophobicity can not be compatible with other materials properties, thus limiting their practical applications. To solve these issues and to explore the possible initial applications in certain high-technology field, it is necessary to employ the advanced theories to design the optimal micro-nano structures, and it is also helpful to use the external forces to tune the wetting behavior. In this review, we aim at the above key issues to discuss the progresses on the theoretical and experimental aspects of the studies on superhydrophobic surfaces, with an emphasis on the geometrical design and fabrication methods. We also indicate the possible role of external forces in tuning the supeerhvdrophobic behavior.
出处
《中国材料进展》
CAS
CSCD
2009年第12期41-52,共12页
Materials China
基金
国家自然科学基金项目(20973146)
湖南省教育厅科学基金项目(08A068)资助
关键词
超疏水
接触角
接触角滞后
几何设计
制备方法
superhydrophobic
contact angle
contact angle hysteresis
geometrical design
fabrication method
