Tuning the wettability of an aluminum surface via a chemically deposited fractal dendrite structure

Duyang Zang; Feng Li; Xingguo Geng; Kejun Lin; Paul S. Clegg

doi:10.1140/epje/i2013-13059-2

Tuning the wettability of an aluminum surface via a chemically deposited fractal dendrite structure

Duyang Zang^*, Feng Li, Xingguo Geng, Kejun Lin, Paul S. Clegg

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We have developed a straightforward method to tune the wettability of an aluminum substrate within a contact angle (CA) range from 2 degrees to 170 degrees by chemical deposition in CuCl2 solution and fluoroalkylsilane (FAS) modification. The CA of the as-deposited surface decreases with deposition time due to the growth of fractal copper dendrites, which enhance the surface roughness significantly. After subsequent modification with FAS, a superhydrophobic surface with CA 170 degrees and sliding angle less than 5 degrees has been obtained. With the increase of CA, the maximum spreading of water droplets is reduced. A bouncing behavior is observed for droplets impinging on the superhydrophobic substrate, suggesting its potential application as a self-cleaning surface.

Original language	English
Article number	59
Number of pages	8
Journal	The European Physical Journal E (EPJ E)
Volume	36
Issue number	6
DOIs	https://doi.org/10.1140/epje/i2013-13059-2
Publication status	Published - Jun 2013

Keywords / Materials (for Non-textual outputs)

SUPER-HYDROPHOBIC SURFACE
SUPERHYDROPHOBIC SURFACE
COTTON TEXTILES
WATER
FABRICATION
ADHESION
FILMS

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10.1140/epje/i2013-13059-2

Cite this

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title = "Tuning the wettability of an aluminum surface via a chemically deposited fractal dendrite structure",

abstract = "We have developed a straightforward method to tune the wettability of an aluminum substrate within a contact angle (CA) range from 2 degrees to 170 degrees by chemical deposition in CuCl2 solution and fluoroalkylsilane (FAS) modification. The CA of the as-deposited surface decreases with deposition time due to the growth of fractal copper dendrites, which enhance the surface roughness significantly. After subsequent modification with FAS, a superhydrophobic surface with CA 170 degrees and sliding angle less than 5 degrees has been obtained. With the increase of CA, the maximum spreading of water droplets is reduced. A bouncing behavior is observed for droplets impinging on the superhydrophobic substrate, suggesting its potential application as a self-cleaning surface.",

keywords = "SUPER-HYDROPHOBIC SURFACE, SUPERHYDROPHOBIC SURFACE, COTTON TEXTILES, WATER, FABRICATION, ADHESION, FILMS",

author = "Duyang Zang and Feng Li and Xingguo Geng and Kejun Lin and Clegg, {Paul S.}",

year = "2013",

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doi = "10.1140/epje/i2013-13059-2",

language = "English",

volume = "36",

journal = "The European Physical Journal E (EPJ E)",

issn = "1292-8941",

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T1 - Tuning the wettability of an aluminum surface via a chemically deposited fractal dendrite structure

AU - Zang, Duyang

AU - Li, Feng

AU - Geng, Xingguo

AU - Lin, Kejun

AU - Clegg, Paul S.

PY - 2013/6

Y1 - 2013/6

N2 - We have developed a straightforward method to tune the wettability of an aluminum substrate within a contact angle (CA) range from 2 degrees to 170 degrees by chemical deposition in CuCl2 solution and fluoroalkylsilane (FAS) modification. The CA of the as-deposited surface decreases with deposition time due to the growth of fractal copper dendrites, which enhance the surface roughness significantly. After subsequent modification with FAS, a superhydrophobic surface with CA 170 degrees and sliding angle less than 5 degrees has been obtained. With the increase of CA, the maximum spreading of water droplets is reduced. A bouncing behavior is observed for droplets impinging on the superhydrophobic substrate, suggesting its potential application as a self-cleaning surface.

AB - We have developed a straightforward method to tune the wettability of an aluminum substrate within a contact angle (CA) range from 2 degrees to 170 degrees by chemical deposition in CuCl2 solution and fluoroalkylsilane (FAS) modification. The CA of the as-deposited surface decreases with deposition time due to the growth of fractal copper dendrites, which enhance the surface roughness significantly. After subsequent modification with FAS, a superhydrophobic surface with CA 170 degrees and sliding angle less than 5 degrees has been obtained. With the increase of CA, the maximum spreading of water droplets is reduced. A bouncing behavior is observed for droplets impinging on the superhydrophobic substrate, suggesting its potential application as a self-cleaning surface.

KW - SUPER-HYDROPHOBIC SURFACE

KW - SUPERHYDROPHOBIC SURFACE

KW - COTTON TEXTILES

KW - WATER

KW - FABRICATION

KW - ADHESION

KW - FILMS

U2 - 10.1140/epje/i2013-13059-2

DO - 10.1140/epje/i2013-13059-2

M3 - Article

SN - 1292-8941

VL - 36

JO - The European Physical Journal E (EPJ E)

JF - The European Physical Journal E (EPJ E)

IS - 6

M1 - 59

ER -

Tuning the wettability of an aluminum surface via a chemically deposited fractal dendrite structure

Abstract

Keywords / Materials (for Non-textual outputs)

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