Conductive film Manufacturing using Coffee Ring Effect

• Main Authors: PAIK CHOONG HOON, KIM KYU BYUNG, SHIN YONG WOO
• Format: Patent
• Language: English; Korean
• Published: 26.01.2023
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CONDUCTORS; CORRECTING FLUIDS; DYES; ELECTRICITY; FILLING PASTES; INKS; INSULATORS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention provides a conductive film, which creates a conductive network on the surface of the film by the coffee ring phenomenon of the conductive metal particle emulsion solution, so that the difference in light transmittance from a base film is within 8% and the electrical resistance is 20 Ω/□ or less. The conductive film exhibits two-dimensional conductivity. The conductive film is manufactured through the steps of: preparing a conductive metal particle emulsion solution; rolling the conductive metal particle emulsion solution on the surface of the film; drying the coated film; and thermally curing the dried film. 본 발명은 전도성 금속입자 에멀젼 용액의 커피링 현상에 의해 필름의 표면에 전도성 네트워크를 만들어서 기재 필름과의 광투과율 차이가 8% 이내이고, 전기저항이 20Ω/□ 이하인 2차원적 전도성을 나타내는 전도성 필름에 관한 것이다.