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Superhydrophobic cellulose-based bionanocomposite films from Pickering emulsions
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Image of FIG. 1.
FIG. 1.

SEM images showing surface morphology of (a) nanocomposite coating cast from ZnO nanofluid modified Pickering emulsion. Scale bar is . (b) Bionanocomposite cast from CN (as collodion) dispersed ZnO nanofluid modified Pickering emulsion. Scale bar is . (c) Polymer composite coating cast from CN/Zonyl (1/3) polymer blend dispersed in as-prepared Pickering emulsion. Scale bar is .

Image of FIG. 2.
FIG. 2.

(a) Wetting characteristics of CN, Zonyl, and CN/Zonyl (1/3) based nanocomposites as a function of [ZnO/emulsion] weight ratio in the spray atomized solutions. Overall polymer concentration within the atomized solutions was approximately 3 wt %. (b) Photograph of a one side coated strip of aluminum foil mechanically coiled showing the flexibility of the water repellent CN/Zonyl based bionanocomposite coatings. (c) Static water contact angles on various nanocomposite coatings as a function of number of coil-uncoil cycles mechanically induced on the foils and (d) thin polymer nanofibers resisting separation of the deliberately fractured CN/Zonyl bionanocomposite coating. Scale bar is .

Image of FIG. 3.
FIG. 3.

Effect of antiseptic concentration (as equal part mixture of dyclonine hydrochloride and benzethonium chloride) on wetting characteristics of the CN/Zonyl based bionanocomposite.


Generic image for table
Table I.

Composition details of the layered silicate stabilized Pickering emulsion with no surfactant or dispersant. As-prepared emulsion viscosity was 400 cp at 500/s shear rate. Cyclomethicones and layered silicate particles were provided by 3M, USA.


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Scitation: Superhydrophobic cellulose-based bionanocomposite films from Pickering emulsions