Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance

The lotus and taro leaf surfaces are superhydrophobic. We fabricated different surface patterns of lotus and taro leaves on Si surfaces and compared their contact angles and tribological properties. Three types of lotus patterns, consisting of a simple dot matrix of circular pillars with different p...

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Autores principales:	Hiroshi Tani, Naoya Yamashita, Shinji Koganezawa, Norio Tagawa
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2018
Materias:	superhydrophobicity oleophobicity lotus effect biomimetic texture Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/6a7b4b6a04004301a6d99feb8e59865f
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spelling	oai:doaj.org-article:6a7b4b6a04004301a6d99feb8e59865f2021-11-05T09:18:50ZTaro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance1881-219810.2474/trol.13.311https://doaj.org/article/6a7b4b6a04004301a6d99feb8e59865f2018-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/13/6/13_311/_pdf/-char/enhttps://doaj.org/toc/1881-2198The lotus and taro leaf surfaces are superhydrophobic. We fabricated different surface patterns of lotus and taro leaves on Si surfaces and compared their contact angles and tribological properties. Three types of lotus patterns, consisting of a simple dot matrix of circular pillars with different pitches, and six types of taro patterns having the pillars distributed within a field of hexagonal ridges with different central pillar diameters and pitches, were prepared. The contact angles of water and hexadecane on these patterns were measured, and the wear resistance of each pattern was evaluated by reciprocating wear tests. The taro pattern showed a significantly higher contact angle for hexadecane and a lower coefficient of friction than the lotus pattern. The taro pattern ridges are supposed to contain air in the valleys between the ridges and pillars, which prevented sticking between the pillars and cloth fibers. Thus, the taro pattern exhibits better oleophobicity and a lower frictional force.Hiroshi TaniNaoya YamashitaShinji KoganezawaNorio TagawaJapanese Society of Tribologistsarticlesuperhydrophobicityoleophobicitylotus effectbiomimetictexturePhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 13, Iss 6, Pp 311-315 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	superhydrophobicity oleophobicity lotus effect biomimetic texture Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	superhydrophobicity oleophobicity lotus effect biomimetic texture Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Hiroshi Tani Naoya Yamashita Shinji Koganezawa Norio Tagawa Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance
description	The lotus and taro leaf surfaces are superhydrophobic. We fabricated different surface patterns of lotus and taro leaves on Si surfaces and compared their contact angles and tribological properties. Three types of lotus patterns, consisting of a simple dot matrix of circular pillars with different pitches, and six types of taro patterns having the pillars distributed within a field of hexagonal ridges with different central pillar diameters and pitches, were prepared. The contact angles of water and hexadecane on these patterns were measured, and the wear resistance of each pattern was evaluated by reciprocating wear tests. The taro pattern showed a significantly higher contact angle for hexadecane and a lower coefficient of friction than the lotus pattern. The taro pattern ridges are supposed to contain air in the valleys between the ridges and pillars, which prevented sticking between the pillars and cloth fibers. Thus, the taro pattern exhibits better oleophobicity and a lower frictional force.
format	article
author	Hiroshi Tani Naoya Yamashita Shinji Koganezawa Norio Tagawa
author_facet	Hiroshi Tani Naoya Yamashita Shinji Koganezawa Norio Tagawa
author_sort	Hiroshi Tani
title	Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance
title_short	Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance
title_full	Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance
title_fullStr	Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance
title_full_unstemmed	Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance
title_sort	taro-leaf inspired patterning of oleophobic surfaces with high wear resistance
publisher	Japanese Society of Tribologists
publishDate	2018
url	https://doaj.org/article/6a7b4b6a04004301a6d99feb8e59865f
work_keys_str_mv	AT hiroshitani taroleafinspiredpatterningofoleophobicsurfaceswithhighwearresistance AT naoyayamashita taroleafinspiredpatterningofoleophobicsurfaceswithhighwearresistance AT shinjikoganezawa taroleafinspiredpatterningofoleophobicsurfaceswithhighwearresistance AT noriotagawa taroleafinspiredpatterningofoleophobicsurfaceswithhighwearresistance
_version_	1718444414827757568

Taro-Leaf Inspired Patterning of Oleophobic Surfaces with High Wear Resistance

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