Abstract: With the rapid development of surface science and bionics, superhydrophobic materials have become a hot issue in current research, and their excellent properties have a very broad application prospect. In this paper, a Ni3S2 micro-nano composite structure was grew directly on the nickel foam by hydrothermal reaction, then the superhydrophobic surface with excellent properties was obtained after modification by tetradecanoic acid. The effects of reaction temperature and time on the water contact angles were investigated. It was found that the properties of the superhydrophobic surface were optimal while the reaction temperature was 180 ℃ and the reaction time was 6 h so that the static contact angle was up to 160.28°. Scanning electron microscopy was used to observe the microstructure of the superhydrophobic surface, and the interleaved cone arrays were found on the substrates. The chemical compositions of the superhydrophobic surface were analyzed by X-ray diffractometer and energy dispersive spectrometer. It was worth noting that a new Ni3S2 phase was formed compared to the nickel foam. The properties of the superhydrophobic surface were tested, finding that the surface had good acid and alkali resistance and corrosion resistance.
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2019, Vol. 33 
