Preparation method of self-repairing super-hydrophobic/super-oleophylic aluminum alloy net for oil-water separation

• Main Authors: YU SIRONG, WANG LIYUAN, WANG JUN, WANG KANG, ZHU GUANG, LIU LIN, LI QUAN, LIU ENYANG
• Format: Patent
• Language: Chinese; English
• Published: 15.10.2021
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

The invention relates to a preparation method of a self-repairing super-hydrophobic/super-oleophylic aluminum alloy net for oil-water separation, and belongs to the field of metal material surface modification. The method comprises the following steps that firstly, the aluminum alloy net is subjected to alkali washing and ultrasonic washing; then the aluminum alloy net is put into a mixed solution of nickel chloride hexahydrate and hexamethylenetetramine to be subjected to hydrothermal treatment; then, the aluminum alloy net subjected to hydrothermal treatment is calcined; and finally, modification is conducted in a myristic acid ethanol solution, and the super-hydrophobic/super-oleophylic aluminum alloy net is obtained. Tests show that the contact angle of deionized water on the surface of the aluminum alloy net can reach 160.5 degrees, and the contact angle of gasoline and other oil products on the surface of the aluminum alloy net is 0 degree, so that the aluminum alloy net can be used for separating an oi