Applied Surface Science 442 (2018) 461–466 Contents lists available at ScienceDirect Applied Surface Science journal homepage: www.elsevier.com/locate/apsusc Full Length Article Fabrication of a superhydrophobic surface with fungus-cleaning properties on brazed aluminum for industrial application in heat exchangers Jeong-Won Lee, Woonbong Hwang Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 790-784, Republic of Korea article i nfo abstract Article history: Extensive research has been carried out concerning the application of superhydrophobic coating in heat Received 12 December 2017 exchangers, but little is known about the application of this technique to brazed aluminum heat exchang- Revised 15 February 2018 ers (BAHEs). In this work, we describe a new superhydrophobic coating method, which is suitable for Accepted 17 February 2018 BAHE use on an industrial scale. We ﬁrst render the BAHE superhydrophobic by fabricating micro/nanos- Available online 21 February 2018 tructures using solution dipping followed by ﬂuorination. After the complete removal of the silicon resi- due, we verify using surface analysis that the BAHE surface is perfectly superhydrophobic. We also Keywords: studied the fungus-cleaning properties of the superhydrophobic surface by growing fungus for 4 weeks Superhydrophobic surface in a moist environment on BAHE ﬁns
Precambrian Research – Elsevier
Published: May 1, 2018
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