Superhydrophobic to Icephobic Properties of Micro/nano-structure Composite Surfaces†

doi:10.7503/cjcu20140050

Abstract

Abstract:

A micro/nano-structure surface which composed of organic materials and ZnO nanohairs was obtained by replica method and hydrothermal method. The cycle of the micro-structure is about 300 μm and the height of micro-structure is about 70 μm. The length and diameter of nano-structure are 2—3 μm and 300—500 nm, respectively. The results show that the micro/nano-structure surfaces have low adhesion, low temperature superhydrophobic properties and long icing delay time. This study has a good reference value on the design of hydrophobic/icing delay materials.

Key words: Micro/Nano-structure, Composite surface, Ice-phobic, Anti-fogging, Low adhesion, Superhydrophobic

TrendMD:

WEN Mengxi, ZHENG Yongmei. Superhydrophobic to Icephobic Properties of Micro/nano-structure Composite Surfaces^†[J]. Chem. J. Chinese Universities, 2014, 35(5): 1011.

Figures/Tables 4

Fig.1 SEM images of the MN(A), N(B), M(C) and S(D) surfaces

Fig.2 Water contact angles(CA) on four surfaces with temperatures from -10 ℃ to 0 ℃(A)and advancing contact angle(ACA)/receding contact angle(RCA) on four surfaces at -10 ℃(B)

Fig.3 Relationship curves of adhesions on four surfaces at ambient temperature [(21.3 ± 3)℃](A) and bar-graph of adhesions on four surfaces(B)

Fig.4 Freezing processes of the droplets on the four surfaces^ (A) MN; (B) N; (C) S; (D) M.

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