HYDROPHOBIC SILICA COATING LAYER AND PREPARING METHOD OF THE SAME

摘要

PURPOSE: A hydrophobicity silica coating layer and a manufacturing method thereof are provided to manufacture the hydrophobicity silica coating layer including a hierarchy structure of three steps in which a -CF 2 and/or -CF 3 is formed on a silica particle layer of a microscopic in which a metal nanoparticle of a nano-size is formed. CONSTITUTION: A manufacturing method of a hydrophobicity silica coating layer comprises followings: a step of forming a silica particle layer by electrospraying a solution containing a silica precursor on a substrate; a step of immersing the substrate in which the silica particle layer is formed to a solution containing a metal salt precursor, and forming a metal nano-particle on the silica particle by irradiating the ultraviolet ray or the gamma ray; and a step of immersing the substrate including the silica particle layer in which the metal nano-particle is formed to a solution containing a fluorine - containing compound. [Reference numerals] (AA,EE,HH) Silica; (BB,FF,II) Base; (CC) Electric radiation; (DD,KK) Gold nanoparticle; (GG) Ultraviolet ray/gamma ray irradiation; (JJ) Fluoride alkyl silane surface treatment; (LL) Silica microparticle;