公开(公告)号：US20230081397A1

公开(公告)日：2023-03-16

申请号：US17944227

申请日：2022-09-14

申请人： XI'AN JIAOTONG UNIVERSITY

发明人： Cunlu ZHAO ,  Huilong YAN ,  Yonghe CUI ,  Kai JIAO ,  Dongmin WEI ,  Fang QIAN ,  Qiuwang WANG

IPC分类号： F16L9/02 ,  C23C22/56 ,  C23F1/20

摘要： The present application provides an anti-corrosion super-slippery aluminum capillary tube and method and device for preparing the same. The preparation starts with the etching and drying of the inner walls of an aluminum capillary tube, which leads to the formation of an alumina capillary structure surface with micro-nano scale roughness. Next, the alumina capillary structure surface is modified to form a low surface energy modifying layer. Finally, the modified alumina capillary structure surface is wetted by a prewetting solution, so that a continuous film of the prewetting solution is formed on the inner wall of the aluminum capillary tube to function as a lubricating layer. The lubrication layer, on one hand, reduces the flow resistance for convey of liquid media, on the other hand, prevents the conveyed liquids from directly contacting the aluminum capillary tube body, thereby avoiding the corrosion of the aluminum capillary tube by corrosive liquids.