Li Ben, Li Xuewu
Engineering Research Center of Additive Manufacturing Aeronautical Materials of Henan Province, Nanyang Institute of Technology, Nanyang 473004, China.
School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China.
Materials (Basel). 2024 Sep 12;17(18):4485. doi: 10.3390/ma17184485.
With the development of modern technology, the construction industry, and navigation technology, the metal Cu alloy has become an important metal material in mainstream industrial applications. As an indispensable basic metal material in the field of science and technology, its problem with corrosion is still a long-term problem that scientists have been working to solve. In this paper, air spraying technology is used to prepare an AlO-PDMS composite coating. By adjusting the content of AlO, the surface of the Cu alloy can reach different wetting states. The results show that the corrosion potential of the as-prepared superhydrophobic AlO-PDMS coating increases by 70 mV compared with the substrate, the corrosion current density decreases by one order of magnitude, and the impedance modulus increases from 2000 to 12,000 Ω⋅cm, indicating a significantly enhanced corrosion resistance. It also possesses excellent anti-pollution and anti-icing behaviors, thereby allowing them to work in harsh industrial conditions.
随着现代技术、建筑业和导航技术的发展，金属铜合金已成为主流工业应用中的一种重要金属材料。作为科技领域不可或缺的基础金属材料，其腐蚀问题仍是科学家们长期致力于解决的问题。本文采用空气喷涂技术制备了AlO-PDMS复合涂层。通过调整AlO的含量，铜合金表面可达到不同的润湿状态。结果表明，所制备的超疏水AlO-PDMS涂层的腐蚀电位比基体提高了70 mV，腐蚀电流密度降低了一个数量级，阻抗模量从2000 Ω·cm增加到12000 Ω·cm，表明其耐蚀性显著增强。它还具有优异的防污和防冰性能，从而使其能够在恶劣的工业条件下工作。
