Zhang Pengfei, Huawei Chen, Liu Guang, Zhang Liwen, Zhang Deyuan
School of Mechanical Engineering and Automation, Beihang University.
School of Mechanical Engineering and Automation, Beihang University;
J Vis Exp. 2018 Mar 29(133):55888. doi: 10.3791/55888.
Anti-adhesion surfaces with high-temperature resistance have a wide application potential in electrosurgical instruments, engines, and pipelines. A typical anti-wetting superhydrophobic surface easily fails when exposed to a high-temperature liquid. Recently, Nepenthes-inspired slippery surfaces demonstrated a new way to solve the adhesion problem. A lubricant layer on the slippery surface can act as a barrier between the repelled materials and the surface structure. However, the slippery surfaces in previous studies rarely showed high-temperature resistance. Here, we describe a protocol for the preparation of slippery surfaces with high-temperature resistance. A photolithography-assisted method was used to fabricate pillar structures on stainless steel. By functionalizing the surface with saline, a slippery surface was prepared by adding silicone oil. The prepared slippery surface maintained the anti-wetting property for water, even when the surface was heated to 300 °C. Also, the slippery surface exhibited great anti-adhesion effects on soft tissues at high temperatures. This type of slippery surface on stainless steel has applications in medical devices, mechanical equipment, etc.
具有耐高温性能的抗粘附表面在电外科器械、发动机和管道等领域具有广泛的应用潜力。典型的抗湿超疏水表面在暴露于高温液体时很容易失效。最近，受猪笼草启发的光滑表面展示了一种解决粘附问题的新方法。光滑表面上的润滑层可以作为被排斥材料与表面结构之间的屏障。然而，先前研究中的光滑表面很少表现出耐高温性能。在此，我们描述了一种制备耐高温光滑表面的方法。采用光刻辅助方法在不锈钢上制造柱状结构。通过用盐水对表面进行功能化处理，添加硅油制备出光滑表面。所制备的光滑表面即使在加热到300℃时仍保持对水的抗湿性能。此外，该光滑表面在高温下对软组织表现出极大的抗粘附效果。这种不锈钢上的光滑表面在医疗设备、机械设备等方面具有应用价值。
