期刊
MATERIALS TODAY COMMUNICATIONS
卷 19, 期 -, 页码 487-494出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mtcomm.2019.04.005
关键词
Biomimetic surface; Lotus leaf; Micro-/nanostructure; Superhydrophobic stability; Injection molding
资金
- National Natural Science Foundation of China [51533003]
- Natural Science Foundation of Guangdong Province [2016A030308018]
- Science and Technology Project of Guangdong Province [2017B090911009]
- Guangzhou Municipal Science and Technology Project [201807010088]
Recently, the biomimetic replication of micro-/nanostructure present on lotus leaves has attracted great interest. Unfortunately, the nanostructure on the surfaces of lotus leaves, which play a critical role in making them superhydrophobic and self-cleaning, are difficult to precisely replicate. Herein, a nickel replica is fabricated by electroless plating and electroplating with natural lotus leaf as natural template. Using the nickel template, lotus leaf-like structure is fabricated on polypropylene (PP) surfaces by injection molding, an industrially feasible technique for fast mass-fabrication. It is demonstrated that the micropapillae on the lotus leaf are successfully fabricated on the PP replica, especially nanohairs with sharp tips and high aspect ratio are developed without additional surface coating or chemical modification. The PP replicas exhibit a highly similar wettability with the lotus leaf. More interestingly, the nanohairs on the PP replica are superior to the nanotubules on the lotus leaf in terms of the dynamic superhydrophobic stability and superhydrophobic thermal durability. Impact droplet exhibits shorter contact time on the PP replica than the lotus leaf. Mechanisms for the functionalities of the nanohairs on the PP replica are analyzed. Such superior properties are expected to have industrial applications, such as anti-icing, microdroplet transfer, and self-cleaning.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据