Scalable Preparation of Superamphiphobic Coatings with Ultralow Sliding Angles and High Liquid Impact Resistance

Shuantao Dong; Yabin Li; Ning Tian; Bucheng Li; Yanfei Yang; Lingxiao Li; Junping Zhang

doi:10.1021/acsami.8b17825

Scalable Preparation of Superamphiphobic Coatings with Ultralow Sliding Angles and High Liquid Impact Resistance

ACS Appl Mater Interfaces. 2018 Dec 12;10(49):41878-41882. doi: 10.1021/acsami.8b17825. Epub 2018 Nov 29.

Authors

Shuantao Dong¹, Yabin Li¹, Ning Tian^{1

2}, Bucheng Li¹, Yanfei Yang^{1

2}, Lingxiao Li¹, Junping Zhang¹

Affiliations

¹ Key Laboratory of Clay Mineral Applied Research of Gansu Province, and State Key Laboratory of Solid Lubrication , Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000 , P.R. China.
² Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China.

PMID: 30475584
DOI: 10.1021/acsami.8b17825

Abstract

In spite of great progress, preparation of superamphiphobic coatings with excellent static and dynamic superamphiphobicity remains challenging. Here, we report superamphiphobic coatings with ultralow sliding angles and high liquid impact resistance. The coatings were prepared by spray-coating the polysiloxane/silica stock suspensions, synthesized by hydrolytic condensation of silanes with silica nanoparticles. The superamphiphobicity relies on microstructure of the coatings, controllable by the diameter of silica nanoparticles. The coatings feature excellent static and dynamic superamphiphobicity for various liquids with surface tension as low as 23.8 mN m^-1. Furthermore, we achieved large-scale preparation of the coatings, which paved the way for their applications.

Keywords: silanes; silica; superhydrophobic; superoleophobic; surface chemistry.