Chen Fengxiang, Yang Huiyu, Liu Xin, Chen Dongzhi, Xiao Xingfang, Liu Keshuai, Li Jing, Cheng Fan, Dong Binhai, Zhou Yingshan, Guo Zhiguang, Qin Yong, Wang Shimin, Xu Weilin
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University , Wuhan 430062, PR China.
State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University , Wuhan 430200, PR China.
ACS Appl Mater Interfaces. 2016 Mar 2;8(8):5653-60. doi: 10.1021/acsami.5b11420. Epub 2016 Feb 18.
To obtain a hydrophobic surface, TiO2 coatings are deposited on the surface of silk fabric using atomic layer deposition (ALD) to realize a hierarchical roughness structure. The surface morphology and topography, structure, and wettability properties of bare silk fabric and TiO2-coated silk fabrics thus prepared are evaluated using scanning electron microscopy (SEM), field-emission scanning electron microscopy (FESEM), scanning probe microscope (SPM), X-ray diffraction (XRD), static water contact angles (WCAs), and roll-off angles, respectively. The surfaces of the silk fabrics with the TiO2 coatings exhibit higher surface roughnesses compared with those of the bare silk fabric. Importantly, the hydrophobic and laundering durability properties of the TiO2-coated silk fabrics are largely improved by increasing the thickness of the ALD TiO2 coating. Meanwhile, the ALD process has a litter effect on the service performance of silk fabric. Overall, TiO2 coating using an ALD process is recognized as a promising approach to produce hydrophobic surfaces for elastic materials.
为了获得疏水表面，采用原子层沉积（ALD）法在丝绸织物表面沉积二氧化钛涂层，以实现分级粗糙结构。分别使用扫描电子显微镜（SEM）、场发射扫描电子显微镜（FESEM）、扫描探针显微镜（SPM）、X射线衍射（XRD）、静态水接触角（WCA）和滚落角，对如此制备的裸丝绸织物和二氧化钛涂层丝绸织物的表面形态与形貌、结构及润湿性进行评估。与裸丝绸织物相比，涂覆有二氧化钛涂层的丝绸织物表面具有更高的粗糙度。重要的是，通过增加ALD二氧化钛涂层的厚度，涂覆有二氧化钛涂层的丝绸织物的疏水和洗涤耐久性得到了很大改善。同时，ALD工艺对丝绸织物的使用性能影响较小。总体而言，采用ALD工艺的二氧化钛涂层被认为是一种为弹性材料制备疏水表面的有前途的方法。
