Preparation of corrosion-protective copper paste through single process and application thereof to dipole tag antenna

摘要

Provided are a method of producing corrosion-protective copper paste through a single process and an application thereof to a dipole tag antenna. Copper powder is surface-etched by using a hydrochloric acid in an inert gas atmosphere, a phosphoric acid aqueous solution is added thereto to form copper phosphate on the etched surface of the copper powder, and then, a vinyl imidazole-silane copolymer and poly(4-styrenesulfonate) were introduced thereto to form a corrosion-protective coating layer on the surface of copper powder on which the copper phosphate has been formed, and a centrifuge and an agate mortar are used to prepare a copper paste having high viscosity and high dispersability. When a copper paste thin film is formed on a flexible film by screen printing, a produced dipole tag antenna may have high efficiency.