Journal
CARBOHYDRATE POLYMERS
Volume 160, Issue -, Pages 9-17Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.12.018
Keywords
Superhydrophobicity; Layer-by-layer; TiO2 nanoparticles; Alginate; Moisture-proofing
Categories
Funding
- National Natural Science Foundation of China [21566020]
- Applied Basic Research Program of Yunnan Province [2014FD008]
- Talent Training Program of Yunnan Province [KKSY201305002]
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We proposed a green and facile method to fabricate superhydrophobic paper in this study, which is layer-by-layer (LBL) deposition of TiO2 nanoparticles/sodium alginate (ALG) multilayers on paper surface followed by an adsorption treatment of colloidal carnauba wax. The formation of TiO2/ALG multilayers on paper surface was characterized by X-ray photoelectron spectroscopy (XPS), zeta potential measurement, scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. The wetting property of modified paper was investigated by water contact angle (WCA) measurement. Moreover, the modified paper tensile strength has been evaluated. The results showed that WCA of paper modified with a wax-treated (TiO2/ALG)(3.5) multilayer reached up to 151.5 degrees, and this obtained superhydrophobic paper exhibited improved tensile strength (increased by 4.1% compared to the pristine paper), excellent moisture-proofing property and high strength stability under high relative humidity condition, which might has a great potential for use in the liquid paper packaging and moisture-proof paper packaging. (C) 2016 Elsevier Ltd. All rights reserved.
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