涂层
接触角
材料科学
润湿
纳米复合材料
纳米颗粒
耐久性
化学工程
硅烷
超疏水涂料
吸水率
复合材料
纳米技术
工程类
作者
Yanwei Chai,Gang Wang,Pengfei Shi,Hongjie Luo,Zhao Xichen,Biao Zhang,Jianfeng Zhu
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2022-12-08
卷期号:5 (12): 18708-18717
被引量:3
标识
DOI:10.1021/acsanm.2c04463
摘要
Exploring and developing an efficient protective coating for precious stone heritages that have been exposed to sunlight and rain for a long time is crucial. The UV resistance properties of nano-ZnO are apparent. Nano-SiO2 has a stable chemical structure and is one of the main components of stone. This paper introduces the synergistic protective effect of ZnO nanoparticles (ZnO-NPs) and SiO2 nanoparticles (SiO2-NPs) on stone, which is novel in this field. The functional nanocomposite coating (FZS coating) was obtained by spraying the ultrasonic mixture of ZnO-NPs and SiO2-NPs, cross-linked with a silane coupling agent, and modified by fluorocarbon. Wettability and UV aging tests showed that the sandstone deposited by FZS coating had excellent amphiphobicity (water contact angle (WCA) > 160°, oil contact angle (OCA) < 140°). The hydrophobicity was almost changeless after 300 h of UV irradiation, indicating high UV absorption capacity and durability. Interestingly, the amphiphobicity remains unchanged after alternating treatments of temperature and humidity, expressing superior weathering stability. This facile functional coating has potential applications protecting outdoor stone heritages.
科研通智能强力驱动
Strongly Powered by AbleSci AI