MoO_(2)/MoS_(2)复合材料构建超疏水表面

Construction of Superhydrophobic Surface by MoO_(2)/MoS_(2) Composites

超疏水材料表面构建的纳微粗糙度结构通常较为脆弱,且表面暴露于腐蚀性环境时通常会失去其超疏水性。为了解决这一问题,本研究以MoO_(3)为原料,采用两步气相硫化法制备出MoO_(2)/MoS_(2)复合材料。通过表征发现MoO_(2)/MoS_(2)复合材料具有良好的纳微粗糙度结构,且有优异的自润滑性和化学惰性。采用聚四氟乙烯滤纸负载MoO_(2)/MoS_(2)复合材料粉末,所构建的表面具有超疏水性(水接触角154.9°)和强液滴黏附力。本研究结果为制备具有高黏附力、耐腐蚀、耐磨损的超疏水表面提供了新思路,为解决腐蚀性液体微液滴的无损转移提供了新途径。

The surface roughness structure of superhydrophobic materials is usually fragile,and the surface will lose its superhydrophobicity when it is exposed to corrosive environment.In order to solve this problem,MoO_(2)/MoS_(2) composites were prepared from MoO_(3) by two-step gas phase vulcanization.The MoO_(2)/MoS_(2) composite has good micro/nano roughness structure,excellent self-lubrication and chemical inertness.The results showed that PTFE filter paper loaded by MoO_(2)/MoS_(2) composite powder had superhydrophobic surface(water contact angle was 154.9°)and strong droplet adhesion.The results provide a new idea for the preparation of super hydrophobic surfaces with high adhesion,corrosion resistance and friction resistance,and provide a new way to solve the non-destructive transfer of corrosive liquid micro droplets.