Superhydrophobic fluorinated polyurethane films

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

A superhydrophobic polyurethane-based film is described, on which the water advancing and receding contact angles are 150° and 82°, respectively. The film was prepared from surface-fluorinated polyurethane (PU), obtained from a well-defined fluorinated isocyanate, with silica particles incorporated within the film. In the absence of the silica particles, smooth fluorinated PU films with about 2 wt% fluorine demonstrate water advancing and receding contact angles of 110° and 63°, respectively. A major cause for the large contact angle hysteresis, similar to the so-called ‘sticky’ superhydrophobic behavior, on the roughened PU films is believed to originate from the surface reorganization of the fluorinated PU upon contact with water, which is characteristic for the partially fluorinated PU film. When a similar poly(dimethylsiloxane) (PDMS)-based roughened film was made, the water contact angle hysteresis could be reduced significantly, since the long PDMS chain can effectively suppress the surface reorganization upon contact with water.

Original languageEnglish
Title of host publicationSuperhydrophobic Surfaces
EditorsA. Carre
Place of PublicationLondon
PublisherCRC Press
Pages139-152
Number of pages14
ISBN (Electronic)9789004193338
ISBN (Print)9789004165939
Publication statusPublished - 1 Jan 2009

Fingerprint

Polyurethanes
Contact angle
Water
Silicon Dioxide
Hysteresis
Isocyanates
Fluorine

Keywords

  • Contact angle hysteresis
  • Polyurethane
  • Superhydrophobicity
  • Surface reorganization

Cite this

Wu, D., Ming, W., van Benthem, R. A. T. M., & de With, G. (2009). Superhydrophobic fluorinated polyurethane films. In A. Carre (Ed.), Superhydrophobic Surfaces (pp. 139-152). London: CRC Press.
Wu, D. ; Ming, W. ; van Benthem, R.A.T.M. ; de With, G. / Superhydrophobic fluorinated polyurethane films. Superhydrophobic Surfaces. editor / A. Carre. London : CRC Press, 2009. pp. 139-152
@inbook{5341a8f9fbbf4553a3648f5fa3a776a8,
title = "Superhydrophobic fluorinated polyurethane films",
abstract = "A superhydrophobic polyurethane-based film is described, on which the water advancing and receding contact angles are 150° and 82°, respectively. The film was prepared from surface-fluorinated polyurethane (PU), obtained from a well-defined fluorinated isocyanate, with silica particles incorporated within the film. In the absence of the silica particles, smooth fluorinated PU films with about 2 wt{\%} fluorine demonstrate water advancing and receding contact angles of 110° and 63°, respectively. A major cause for the large contact angle hysteresis, similar to the so-called ‘sticky’ superhydrophobic behavior, on the roughened PU films is believed to originate from the surface reorganization of the fluorinated PU upon contact with water, which is characteristic for the partially fluorinated PU film. When a similar poly(dimethylsiloxane) (PDMS)-based roughened film was made, the water contact angle hysteresis could be reduced significantly, since the long PDMS chain can effectively suppress the surface reorganization upon contact with water.",
keywords = "Contact angle hysteresis, Polyurethane, Superhydrophobicity, Surface reorganization",
author = "D. Wu and W. Ming and {van Benthem}, R.A.T.M. and {de With}, G.",
year = "2009",
month = "1",
day = "1",
language = "English",
isbn = "9789004165939",
pages = "139--152",
editor = "A. Carre",
booktitle = "Superhydrophobic Surfaces",
publisher = "CRC Press",

}

Wu, D, Ming, W, van Benthem, RATM & de With, G 2009, Superhydrophobic fluorinated polyurethane films. in A Carre (ed.), Superhydrophobic Surfaces. CRC Press, London, pp. 139-152.

Superhydrophobic fluorinated polyurethane films. / Wu, D.; Ming, W.; van Benthem, R.A.T.M.; de With, G.

Superhydrophobic Surfaces. ed. / A. Carre. London : CRC Press, 2009. p. 139-152.

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

TY - CHAP

T1 - Superhydrophobic fluorinated polyurethane films

AU - Wu, D.

AU - Ming, W.

AU - van Benthem, R.A.T.M.

AU - de With, G.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - A superhydrophobic polyurethane-based film is described, on which the water advancing and receding contact angles are 150° and 82°, respectively. The film was prepared from surface-fluorinated polyurethane (PU), obtained from a well-defined fluorinated isocyanate, with silica particles incorporated within the film. In the absence of the silica particles, smooth fluorinated PU films with about 2 wt% fluorine demonstrate water advancing and receding contact angles of 110° and 63°, respectively. A major cause for the large contact angle hysteresis, similar to the so-called ‘sticky’ superhydrophobic behavior, on the roughened PU films is believed to originate from the surface reorganization of the fluorinated PU upon contact with water, which is characteristic for the partially fluorinated PU film. When a similar poly(dimethylsiloxane) (PDMS)-based roughened film was made, the water contact angle hysteresis could be reduced significantly, since the long PDMS chain can effectively suppress the surface reorganization upon contact with water.

AB - A superhydrophobic polyurethane-based film is described, on which the water advancing and receding contact angles are 150° and 82°, respectively. The film was prepared from surface-fluorinated polyurethane (PU), obtained from a well-defined fluorinated isocyanate, with silica particles incorporated within the film. In the absence of the silica particles, smooth fluorinated PU films with about 2 wt% fluorine demonstrate water advancing and receding contact angles of 110° and 63°, respectively. A major cause for the large contact angle hysteresis, similar to the so-called ‘sticky’ superhydrophobic behavior, on the roughened PU films is believed to originate from the surface reorganization of the fluorinated PU upon contact with water, which is characteristic for the partially fluorinated PU film. When a similar poly(dimethylsiloxane) (PDMS)-based roughened film was made, the water contact angle hysteresis could be reduced significantly, since the long PDMS chain can effectively suppress the surface reorganization upon contact with water.

KW - Contact angle hysteresis

KW - Polyurethane

KW - Superhydrophobicity

KW - Surface reorganization

UR - http://www.scopus.com/inward/record.url?scp=85056934041&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:85056934041

SN - 9789004165939

SP - 139

EP - 152

BT - Superhydrophobic Surfaces

A2 - Carre, A.

PB - CRC Press

CY - London

ER -

Wu D, Ming W, van Benthem RATM, de With G. Superhydrophobic fluorinated polyurethane films. In Carre A, editor, Superhydrophobic Surfaces. London: CRC Press. 2009. p. 139-152