Self-healing anti-icing aluminum conductor steel-reinforced with composite microporous structure and preparation method thereof

A self-healing anti-icing aluminum stranded conductor with a composite microporous structure, comprising:

• an aluminum base;
• a porous alumina membrane formed on a surface of the aluminum base;
• and
• a low surface energy remediator filled in pores defined in the porous alumina membrane;
• wherein the porous alumina membrane on the on the aluminum base forms a uniform composite microporous structure, and wherein the composite microporous structure comprises an inner layer of pores with relatively small diameters of 26-200 nm and depths of 5-50 μm, and an outer layer of pores with relatively large diameters of 200-400 nm in diameter and depths of 5-50 μm;
• wherein the outer layer of pores each have a larger diameter than the inner layer of pores;
• wherein the inner layer of pores having relatively small diameters is configured to retain the low surface energy remediator for durable self-healing, and wherein the outer layer of pores having relatively large diameters is configured to provide an increased proportion of air cushion to enhance anti-icing performance of the self-healing anti-icing aluminum;
• wherein the low surface energy remediator is any one of perfluorooctanoic acid, octadecylamine, or perfluorooctyltrimethoxysilane.