The anti-biofouling effect against barnacles of a super-hydrophobic and high-oleophobic surface of treated aluminum

Ohkubo, Yuji; Kusu, Kohtaro; Onishi, Shogo et al.

Sessile Organisms, 2012, 29(2), 41-48

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Identifier to cite or link to this item: https://hdl.handle.net/11094/84525

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Title
The anti-biofouling effect against barnacles of a super-hydrophobic and high-oleophobic surface of treated aluminum
Creator
NRID
1000010525786 1000010525786
ORCID
0000-0001-7366-5108 0000-0001-7366-5108
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Scopus Author ID
37461879400 37461879400
CreatorName
Ohkubo, Yuji
CreatorName
Kusu, Kohtaro
CreatorName
Onishi, Shogo
CreatorName
Ogawa, Kazufumi
Subject
anti-biofouling
barnacle settlement
super-hydrophobicity
micro- and nano-scale relief
apparent solid sureface energy
fluorocarbon monolayer
Description
Ohkubo Yuji, Kusu Kohtaro, Onishi Shogo, et al. "The anti-biofouling effect against barnacles of a super-hydrophobic and high-oleophobic surface of treated aluminum", Sessile Organisms, 29(2), 41-48, 2018. https://doi.org/10.4282/sosj.29.41.
Abstract
The effect of the low apparent solid surface energy of a specially engineered substrate on the settlement of barnacles was studied. To obtain an aluminum (Al) plate with low apparent solid surface energy, a plate was roughened by sandblasting and electrolytic chemical etching, and then coated with a chemically adsorbed monolayer (CAM) containing a fluorocarbon group. The plate was characterized by means of fluid contact angle measurements and a barnacle settlement test. The water contact angle (WCA) was 152°, and the oil contact angle of n-hexadecane (OCA) was 121°. The surface of the plate thus displayed super-hydrophobicity and high-oleophobicity. In addition, the wettability of this surface was evaluated, in terms of calculated apparent total solid surface energy, as approximately 1.6 mN/m. In laboratory experiments, barnacles did not settle on the plate when exposed for 7 days. In comparison to controls using a variety of untreated and partially treated plates, this indicates that the surface treated to have low apparent solid surface energy can have an anti-biofouling effect, which may be explained by a combination of effects of relief and material.
Publisher
The Sessile Organisms Society of Japan
Source Title
Sessile Organisms
Volume (Issue)
29(2)
Page
41-48
Date of Issued
2012
Language
English
Handle URL
https://hdl.handle.net/11094/84525
PISSN
13424181
NCID
AN10563630
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.4282/sosj.29.41
Access Rights
open access
CopyRight
© 2012 Sessile Organisms Society of Japan
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Version of Record
Category
学術雑誌論文 Journal Article