A facile method for preparation superhydrophobic paper with enhanced physical strength and moisture-proofing property
A facile method for preparation superhydrophobic paper with enhanced physical strength and moisture-proofing property
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DOI：
10.1016/j.carbpol.2016.12.018
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发表时间：
2017-03-15
影响因子：
11.2
通讯作者：
Peng, Lincai
中科院分区：
文献类型：
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作者：
Li, Hui;Yang, Jin;Peng, Lincai
本研究提出了一种绿色简便的制备超疏水纸的方法，即在纸表面分层沉积TiO2纳米颗粒/海藻酸钠（ALG）多层膜，然后对胶体巴西棕榈蜡进行吸附处理。采用x射线光电子能谱（XPS）、zeta电位测量、扫描电镜（SEM）和原子力显微镜（AFM）对TiO2/ALG多层膜在纸表面的形成进行了表征。通过水接触角（WCA）的测定，研究了改性纸的润湿性能。并对改性纸的抗拉强度进行了评价。结果表明：经蜡处理的（TiO2/ALG）（3.5）多层膜改性后的超疏水纸WCA可达151.5℃，其抗拉强度比原纸提高了4.1%，防潮性能优异，在高相对湿度条件下具有较高的强度稳定性，在液体纸包装和防潮纸包装方面具有很大的应用潜力。(C) 2016 Elsevier Ltd.版权所有。
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.