Micro-nano composite structure with structural color and super-hydrophobic function

The invention relates to a micro-nano composite structure with structural color and a super-hydrophobic function, and belongs to the field of surface modification. The invention provides a micro-nano composite structure which is composed of a V-shaped groove structure with a micrometer scale and a periodic nano grid structure distributed on the surface of the V-shaped groove. The micro-nano composite structure has two surface characteristics of structural color and super-hydrophobicity at the same time. In the micro-nano composite structure, the surface structural color can be regulated and controlled by adjusting the period of the periodic nano grid-shaped structure, so that the surface generates the required structural color; the surface hydrophobicity is regulated and controlled by adjusting the width, the distance and the opening angle of the V-shaped groove, and the surface can have the super-hydrophobic characteristic. According to the micro-nano composite structure, the surface has the structural color