Zhou Jiahui, Zheng Haikun, Sheng Wei, Hao Xiaoru, Zhang Xinmin
Hami Vocational and Technical College, Hami 839001, China.
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
Molecules. 2024 Apr 18;29(8):1837. doi: 10.3390/molecules29081837.
Zirconia (ZrO) is a ceramic material with high-temperature resistance and good insulating properties. Herein, for the first time, the surface of ZrO was modified with docosanoic acid (DCA) to improve its self-cleaning and hydrophobic properties. This surface modification transformed the surface of ZrO from hydrophilic to superhydrophobic. A two-step spraying method was used to prepare the superhydrophobic surface of ZrO by sequentially applying a primer and a topcoat. The primer was a solution configured using an epoxy resin as the adhesive and polyamide as the curing agent, while the topcoat was a modified ZrO solution. The superhydrophobic surface of ZrO exhibited a contact angle of 154° and a sliding angle of 4°. Scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, and other analytical techniques were used to characterize the prepared zirconia particles and their surfaces. Moreover, results from surface self-cleaning and droplet freezing tests showed that DCA-modified ZrO can be well combined, and its coatings show good self-cleaning and anti-icing properties on TA2 bases.
氧化锆（ZrO）是一种具有耐高温性和良好绝缘性能的陶瓷材料。在此，首次用二十二烷酸（DCA）对ZrO表面进行改性，以提高其自清洁和疏水性能。这种表面改性使ZrO表面由亲水性转变为超疏水性。采用两步喷涂法，通过依次涂覆底漆和面漆来制备ZrO超疏水表面。底漆是一种以环氧树脂为粘合剂、聚酰胺为固化剂配制的溶液，而面漆是一种改性ZrO溶液。ZrO超疏水表面的接触角为154°，滑动角为4°。利用扫描电子显微镜、X射线衍射、能量色散X射线光谱、热重分析等分析技术对制备的氧化锆颗粒及其表面进行表征。此外，表面自清洁和液滴冻结测试结果表明，DCA改性的ZrO能够很好地结合，其涂层在TA2基底上表现出良好的自清洁和防冰性能。
