微纳结构超疏水表面的浸润性及防冰性能

以Ti合金为基体材料，通过超快激光加工微结构并复合纳米SiO₂/氟化聚氨酯涂料，获得微纳结构的涂层表面，并与涂料喷涂获得的纳米涂层表面和未处理的Ti合金表面进行对比分析。分别采用扫描电镜、超景深显微镜、接触角和冰结合力测量仪，研究分析未处理Ti合金表面、纳米结构表面、微纳结构表面的形貌、疏水性、防覆冰性能。结果表明:具有微纳结构的涂层表面具有最佳的超疏水性，接触角为158.9°；与未处理Ti合金表面、纳米结构表面相比，微纳结构表面冰结合力显著降低，表面冰结合强度约为410 kPa。 

Wettability and anti-icing performance of micro-nano structure superhydrophobic surface

Ti alloy was used as the matrix material, the ultra-fast laser was used to process the microstructure and compounded nano SiO₂/fluorinated polyurethane coating to obtain the micro-nano structure coating surface, and this surface was compared and analyzed with the nano structure surface by spraying coating and the untreated surface. Scanning electron microscopy, ultra depth of field microscopy, contact angle and ice bonding force measuring instrument were used to study the surface morphology, hydrophobicity and anti-icing performance of the untreated Ti alloy surface, the nano structure surface and the micro-nano structure surface. The results show that the surface-prepared coating with micro-nano structure has the best superhydrophobicity, showing a contact angle of approximate 158.9° . Compared with the untreated Ti alloy surface and the nano structure surface, the ice adhesion strength of the micro-nano structure is significantly reduced, and the surface ice adhesion strength is about 410 kPa.