Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (3): 358-366.DOI: 10.11944/j.issn.1000-0518.2019.03.180243

• Full Papers • Previous Articles    

Fabrication of Superhydrophobic-Superoleophobic Surfacesby Facile Solution-Immersion and Surface Coating

SHI Yanlong(),FENG Xiaojuan,KANG Kai,HOU Yang   

  1. College of Chemistry and Chemical Engineering,Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities,Hexi University,Zhangye,Gansu 734000,China
  • Received:2018-07-13 Accepted:2018-10-23 Published:2019-03-01 Online:2019-02-28
  • Contact: SHI Yanlong
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.41761061), the Scientific Research Foundation of the Higher Education Institutions of Gansu Province(No.2016B-091), and the General Program of the Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities(No.XZ1603)

Abstract:

Superhydrophobic-superoleophobic materials have received considerable attention due to their wide potential applications in the fields of anti-fouling, water-proof and oil-proof. In this paper, superhydrophobic-superoleophobic zinc spheres are first prepared by immersing the zinc spheres into the solution of perfluorooctanoic acid, and then the superhydrophobic-superoleophobic surfaces are obtained by pasting the obtained superhydrophobic-superoleophobic zinc spheres on substrates of glass, wood, plastic, stainless steel, paper and stone. The contact angles of water and oil droplets on these surfaces all exceed 150°. Zinc spheres react with perfluorooctanoic acid to form zinc perfluorooctanoate, and the coordinate effects of micro/nanometer rough structures and chemical composition with low surface energy of the long fluoroalkyl lead to the formation of superhydrophobicity and superoleophobicity. The research may offer a new idea for the design and fabrication of superamphiphobic materials, as well as their application in self-cleaning, waterproof, oil-proof and anti-contamination.

Key words: superhyrophobicity, superoleophobicity, superamphiphobicity, zinc perfluorooctanoate, solution immersion