Preparation and Properties of Superhydrophobic Conversion Film on Aluminium Alloy

WAN Shan; JIANG Dan; CAI Guang-yi; LIAO Sheng-zhi; DONG Ze-hua

doi:10.11868/j.issn.1001-4381.2017.000509

Cailiao gongcheng (Sep 2018)

Preparation and Properties of Superhydrophobic Conversion Film on Aluminium Alloy

WAN Shan,
JIANG Dan,
CAI Guang-yi,
LIAO Sheng-zhi,
DONG Ze-hua

Affiliations

WAN Shan: Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
JIANG Dan: Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
CAI Guang-yi: Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
LIAO Sheng-zhi: AVIC Special Vehicle Research Institute, Jingmen 448035, Hubei, China
DONG Ze-hua: Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

DOI: https://doi.org/10.11868/j.issn.1001-4381.2017.000509
Journal volume & issue: Vol. 46, no. 9
pp. 144 – 151

Abstract

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A superhydrophobic conversion film on AA6061 aluminium alloy was prepared via ultrasonication-assistant chemical etching by FeCl3/HCl aqueous solution,KMnO4 passivation,and ultrasonic deposition of trichloro (1H,1H,2H,2H-heptadecafluorodecyl) silane. Field emission scanning electron microscopy (FESEM),contact angle test and Fourier transform infrared spectrometer (FTIR) were used to investigate the morphology,hydrophobicity,and chemical compositions of superhydrophobic conversion film, respectively. The results show that superhydrophobic surface exhibits a high contact angle of 153° and endows the Al matrix promising self-cleaning ability, resistance to acid or alkali erosion, anti-friction and anti-corrosion capability. Compared with the dipping method, ultrasonic preparation of superhydrophobic film on Al alloy surface can not only improve the homogeneity of self-assembly of PFCPS, but also enhance its bonding force with Al matrix and form a superhydrophobic film with good protective performance.

Published in Cailiao gongcheng

ISSN: 1001-4381 (Print)
Publisher: Journal of Materials Engineering
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: http://jme.biam.ac.cn/CN/1001-4381/home.shtml

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