Fabrication of Superoleophobic Copper Surfaces with Low Adhesion and Acid/basic-resistance in Water

doi:10.7503/cjcu20130842

Abstract

Abstract:

A novel superoleophobic copper surface in water with special acid/basic resistant property was reported. When the surface is placed under water, an oil droplet has a high contact angle of about 162°, indicating that the surface is superoleophobic in water. Meanwhile, the surface is low adhesive to the oil droplet, and an oil droplet can roll on the surface easily with a sliding angle of about 3°. Noticeably, the surface has a special acid/basic-resistant property and can retain the low adhesive superoleophobic performance at various pH values(2—12) in water. The low adhesive superoleophobic property in water can be ascribed to the combined effect of the hydrophilicity and the hierarchical structures on the surface, and the acid/basic-resis-tance is due to the chemical stability of copper substrate.

Key words: In water, Superoleophobicity, Low adhesion, Acid/basic-resistance, Copper surface material

CLC Number:

O647

TrendMD:

CHENG Zhong-Jun, LAI Hua, FU Ke-Wei, ZHANG Nai-Qing, SUN Ke-Ning. Fabrication of Superoleophobic Copper Surfaces with Low Adhesion and Acid/basic-resistance in Water[J]. Chem. J. Chinese Universities, 2013, 34(12): 2778.

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