Authors
Xuetong Zhao, Yang Yang, Li Cheng, Jing Guo, Shenglin Kang, Yuchen Li, Xilin Wang, Lijun Yang, Ruijin Liao
Publication date
2023/9/5
Journal
Journal of Advanced Ceramics
Volume
12
Issue
9
Publisher
清华大学出版社
Description
Composite coatings or films with polytetrafluoroethylene (PTFE) are typically utilized to offer superhydrophobic surfaces. However, the superhydrophobic surfaces usually have limited durability and require complicated fabrication methods. Herein, we report the successful integration of PTFE with ZnO ceramics to achieve superhydrophobicity via a one-step sintering method, cold sintering process (CSP), at 300℃.(1–x) ZnO–x PTFE ceramic composites with x ranging from 0 to 70 vol% are densified with relative density of over 97%. Micro/nano-scale PTFE polymer is dispersed among ZnO grains forming polymer grain boundary phases, which modulate surface morphology and surface energy of the ZnO–PTFE ceramic composites. For the 60 vol% ZnO–40 vol% PTFE ceramic composite, superhydrophobic properties are optimized with static water contact angles (WCAs) and sliding angles (SAs) of 162 and 7 …
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