Song Cheng, Du Ruofan, Zheng Yongmei
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, China.
National Laboratory for Computational Fluid Dynamics, School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China.
Materials (Basel). 2015 Jul 13;8(7):4249-4257. doi: 10.3390/ma8074249.
Inspired by the high adhesiveness of the electrospun fiber, we propose a method to fabricate multi-scale heterogeneous hump-on-string fiber via the adsorption of nanoparticles, the NPCTi which is the hydrolysate of titanium tetrachloride (TiCl₄) and the nanoparticles containing Al (NPCAl) which is produced by the hydrolysis of Trimethylaluminium (TMA, Al(CH₃)₃). The water collection efficiency of the fibers can be easily controlled via changing not only the size of the beads but also the ratio of the Ti and Al. In addition, we introduce a computational fluid dynamics (CFD) simulation to show the pressure distribution of on the surface of the fibers, which gives another explanation regarding the high water collection efficiency.
受电纺纤维高粘附性的启发，我们提出了一种通过吸附纳米颗粒来制备多尺度异质串上驼峰纤维的方法，即四氯化钛（TiCl₄）水解产物NPCTi和三甲基铝（TMA，Al(CH₃)₃）水解产生的含铝纳米颗粒（NPCAl）。通过改变珠子的大小以及Ti和Al的比例，可以轻松控制纤维的集水效率。此外，我们引入了计算流体动力学（CFD）模拟来展示纤维表面的压力分布，这为高集水效率提供了另一种解释。
