A Novel Method for Preparing Biomimetic Oleophobic Surface on X70 Pipeline Steel

Hao Li; Si Rong Yu

doi:10.4028/www.scientific.net/AMM.513-517.165

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517A Novel Method for Preparing Biomimetic Oleophobic...

A Novel Method for Preparing Biomimetic Oleophobic Surface on X70 Pipeline Steel

Abstract:

A novel method for preparing oleophobic surface is presented. In this article, an oleophobic surface on X70 pipeline steel was prepared successfully by the combination of shot blasting, hydrochloric acid aqueous solution etching, and modified with low-energy material. The influences of the concentration of hydrochloric acid and chemical etching time on the oleophobicity were analyzed. And the optimal experimental parameters were determined. The surface morphology and chemical composition were observed by the field emission scanning electron microscopy (FESEM) and energy dispersive spectrometer (EDS), and the contact angle was measured by contact angle meter. The results showed that micro-nanocomposite structure on the substrate was formed after shot blasting and chemical etching of hydrochloric acid aqueous solution. After low-energy modified, the specimen obtained the better oleophobicity, and the maximum contact angle between the surface and peanut oil was 140°.

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Periodical:

Applied Mechanics and Materials (Volumes 513-517)

Pages:

165-168

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.513-517.165

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Online since:

February 2014

Authors:

Hao Li*, Si Rong Yu

Keywords:

Biomimetic, Chemical Etching, Micro/Nanostructure, Oleophobicity, Shot Blasting

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