Biomimetic superhydrophobic and highly oleophobic cotton textiles

H.F. Hoefnagels, D. Wu, G. With, de, W. Ming

Research output: Contribution to journalArticleAcademicpeer-review

304 Citations (Scopus)

Abstract

We report a biomimetic procedure to prep. superhydrophobic cotton textiles. By in situ introducing silica particles to cotton fibers to generate a dual-size surface roughness, followed by hydrophobization with polydimethylsiloxane (PDMS), normally hydrophilic cotton has been easily turned superhydrophobic, which exhibits a static water contact angle of 155 Deg for a 10 micro L droplet. The roll-off angle of water droplets depends on the droplet vol., ranging from 7 Deg for a droplet of 50 micro L to 20 Deg for a 7 micro L droplet. When a perfluoroalkyl chain is introduced to the silica particle surface, the superhydrophobic textile also becomes highly oleophobic, as demonstrated by a static contact angle of 140 Deg and a roll-off angle of 24 Deg for a 15 micro L sunflower oil droplet. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)13158-13163
JournalLangmuir
Volume23
Issue number26
DOIs
Publication statusPublished - 2007

Fingerprint

cotton
textiles
biomimetics
Biomimetics
Cotton
Textiles
cotton fibers
sunflowers
silicon dioxide
Silicon Dioxide
Contact angle
Silica
water
Sunflower oil
surface roughness
Cotton fibers
Water
oils
Polydimethylsiloxane
Surface roughness

Cite this

Hoefnagels, H.F. ; Wu, D. ; With, de, G. ; Ming, W. / Biomimetic superhydrophobic and highly oleophobic cotton textiles. In: Langmuir. 2007 ; Vol. 23, No. 26. pp. 13158-13163.
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Biomimetic superhydrophobic and highly oleophobic cotton textiles. / Hoefnagels, H.F.; Wu, D.; With, de, G.; Ming, W.

In: Langmuir, Vol. 23, No. 26, 2007, p. 13158-13163.

Research output: Contribution to journalArticleAcademicpeer-review

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