Tam Jason, Lau Jonathan Chun Fung, Erb Uwe
Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, ON M5S 3E4, Canada.
Nanomaterials (Basel). 2018 Dec 20;9(1):2. doi: 10.3390/nano9010002.
The effect of high temperature exposure on the water wetting properties of co-electrodeposited superhydrophobic nickel-polytetrafluoroethylene (Ni-PTFE) nanocomposite coating on copper substrates was studied. This was accomplished by comparing the performance with a commercial superhydrophobic spray treatment (CSHST). The Ni-PTFE and CSHST coatings were both subjected to heating at temperatures up to 400 °C. Results showed that the Ni-PTFE was able to maintain its superhydrophobicity throughout the entire temperature range, whereas the CSHST became more wettable at 300 °C. Furthermore, additional abrasive wear tests were conducted on both materials that were subjected to heating at 400 °C. The Ni-PTFE remained highly non-wettable even after 60 m of abrasion length on 800 grit silicon carbide paper, whereas the CSHST coating was hydrophilic after 15 m.
研究了高温暴露对铜基体上共沉积超疏水镍 - 聚四氟乙烯（Ni - PTFE）纳米复合涂层水润湿性能的影响。通过与商业超疏水喷雾处理（CSHST）的性能进行比较来实现这一目的。Ni - PTFE和CSHST涂层均在高达400°C的温度下进行加热。结果表明，Ni - PTFE在整个温度范围内都能保持其超疏水性，而CSHST在300°C时变得更易润湿。此外，对两种在400°C下加热的材料进行了额外的磨料磨损试验。即使在800目碳化硅纸上磨损长度达到60米后，Ni - PTFE仍保持高度不可润湿，而CSHST涂层在磨损15米后变为亲水性。
