Superhydrophobic
Paper from Nanostructured Fluorinated Cellulose Esters
Version 2 2018-08-15, 21:12
Version 1 2018-03-23, 15:21
Posted on 2018-08-15 - 21:12
The
development of economically and ecologically viable strategies for
superhydrophobization offers a vast variety of interesting applications
in self-cleaning surfaces. Examples include packaging materials, textiles,
outdoor clothing, and microfluidic devices. In this work, we produced
superhydrophobic paper by spin-coating a dispersion of nanostructured
fluorinated cellulose esters. Modification of cellulose nanocrystals
was accomplished using 2H,2H,3H,3H-perfluorononanoyl chloride and 2H,2H,3H,3H-perfluoroundecanoyl chloride, which are well-known for their ability
to reduce surface energy. A stable dispersion of nanospherical fluorinated
cellulose ester was obtained by using the nanoprecipitation technique.
The hydrophobized fluorinated cellulose esters were characterized
by both solid- and liquid-state nuclear magnetic resonance, Fourier
transform infrared spectroscopy, X-ray photoelectron spectroscopy,
and contact angle measurements. Further, we investigated the size,
shape, and structure morphology of nanostructured fluorinated cellulose
esters by dynamic light scattering, scanning electron microscopy,
and X-ray diffraction measurements.
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Khanjani, Pegah; W. T. King, Alistair; Partl, Gabriel J.; Johansson, Leena-Sisko; Kostiainen, Mauri A.; H. A. Ras, Robin (2018). Superhydrophobic
Paper from Nanostructured Fluorinated Cellulose Esters. ACS Publications. Collection. https://doi.org/10.1021/acsami.7b19310
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AUTHORS (6)
PK
Pegah Khanjani
AW
Alistair W. T. King
GP
Gabriel J. Partl
LJ
Leena-Sisko Johansson
MK
Mauri A. Kostiainen
RH
Robin H. A. Ras