Preparation, characterization, and properties of fluorine-free superhydrophobic paper based on layer-by-layer assembly
Preparation, characterization, and properties of fluorine-free superhydrophobic paper based on layer-by-layer assembly
复制标题
基于层层组装的无氟超疏水纸的制备、表征及性能
DOI：
10.1016/j.carbpol.2017.09.040
复制
发表时间：
2017-12-15
影响因子：
11.2
通讯作者：
Yang, Hao
中科院分区：
文献类型：
--
作者：
Yang, Jin;Li, Hui;Yang, Hao
本文报道了用阳离子淀粉和海藻酸钠层层沉积，并对三氯甲基硅烷进行改性的简单方法，制备了一种无氟超疏水纸张。分别对改性纸的表面化学成分、表面电位和表面形貌进行了表征。考察了改性纸的润湿性能和物理强度性能。经4次阳离子淀粉/海藻酸钠双层沉积和三氯甲基硅烷处理后，改性纸的水接触角达到161.7度，抗张强度比原纸提高6.8%。所制得的超疏水纸张不仅具有较低的细菌粘附性、自洁性和拒水性，而且在高相对湿度条件下仍保持较高的强度，在液体纸包装工业中具有很大的应用潜力。
A fluorine-free superhydrophobic paper was prepared by a facile method involving layer-by-layer deposition of cationic starch and sodium alginate together with subsequent modification of trichloromethylsilane has been reported in this article. The surface chemical compositions, potentials and surface morphologies of the modified papers were characterized, respectively. The wetting abilities and physical strength properties of the modified papers were investigated. After 4-time deposition of cationic starch/sodium alginate bilayer followed by trichloromethylsilane treatment, the water contact angle of modified paper reached up to 161.7 degrees, and the tensile strength increased by 6.8% in comparison to that of pristine paper. This as-prepared superhydrophobic paper not only showed low bacterial adhesion property, self-cleaning behavior, water repellency, as well as high durability against deformation, chemical and time, but also kept a high strength property under high relative humidity condition, which might has a great application potential in the liquid paper packaging industry.