Abstract: The well-proportioned composite sols were prepared by using the sol-gel technology with tetraethyl orthosilicate (TEOS) and methyl triethoxy silane (MTES) as the precursors in alcohol-soluble fluorinated polymer solution with PTFE doping under the hydrochloric acid and deficiency of water conditions. The gelation occurred on the composite coating surface after the substrate was coated with composite sols. The experimental results showed that the micrometer-scale and nanometer-scale hierarchical structures were formed by micrometer-sized PTFE particles and nanometer-sized silica particles on the coating surface. The gelation occurred just on the surface of composite coating，which was confirmation by XPS results，and the morphology of coating surface was similar to a lotus leaf according to SEM observation. The super-hydrophobic coating with excellent mechanical properties could be fabricated by this technique according to different requirements.

摘要： 在醇溶性氟化聚合物（FR）溶液中，以正硅酸乙酯（TEOS）和甲基三乙氧基硅烷（MTES）为前体，并掺杂聚四氟乙烯（PTFE），在酸性和水量不足的条件下，得到了均匀的复合溶胶。涂敷后，经表面凝胶化技术处理，使涂层表面得到微米级PTFE粒子和纳米级SiO2粒子相结合的微米纳米阶层结构。XPS证实了凝胶化只在涂层表面发生，SEM观察到涂层表面的形貌与荷叶表面极其相似，该方法可用于制备超疏水性功能涂层材料。