Patent ID: 11935970
Assignee: BK ENERGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method of coating a photovoltaic panel, comprising:
a water-washing step of washing a surface of a photovoltaic panel by spraying water thereon;
a cleaning liquid application step of applying a cleaning liquid on the surface of the photovoltaic panel after the water-washing step;
a rinsing step of removing contaminants and the cleaning liquid on the surface of the photovoltaic panel by spraying washing water after the cleaning liquid application step; and a coating liquid application step of applying a coating liquid on the surface of the photovoltaic panel after the rinsing step and thus forming an anti-stain coating film;
wherein the coating liquid is formed by mixing 20 to 60 parts by weight of an acrylic solution, 5 to 15 parts by weight of a fluoroalcohol, and 2 to 10 parts by weight of a platinum colloid with respect to 100 parts by weight of an alkoxysilane solution; and
wherein the alkoxysilane solution is obtained by mixing, with respect to 100 parts by weight of a solvent, 100 to 150 parts by weight of methyltrimethoxysilane, and the acrylic solution is obtained by mixing 20 to 40 parts by weight of an ethyl acrylate monomer and 2 to 8 parts by weight of polyvinylpyrrolidone with respect to 100 parts by weight of methacrylic acid at a temperature of 70 to 90° C. and then adding 1 to 10 parts by weight of a wax and 0.5 to 5 parts by weight of polyoxyethylene stearyl ether.