▎ 摘　　要

NOVELTY - Conductive ink comprises 5-10 wt.% conductive material, 90-95 wt.% solvent and 0.5-2 wt.% dispersant. The conductive material comprises graphene, reduced graphene oxide, graphene derivative, carbon nanotube and/or conductive carbon black. USE - Conductive ink for RFID antenna (claimed) used in logistics management, book management and anti-fake recognition. ADVANTAGE - The conductive ink has high conductivity and flexibility, and is easy to perform laser and mechanical cutting processing. The method avoids environmental pollution caused by use and discharge of large amount of chemical etching liquid in metal etching process. The conductive film has high conductivity and good bonding force with base material, so the RFID antenna has good reading performance and good stability. The preparation method of the RFID antenna has low cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) an radio-frequency identification (RFID) antenna, comprising: conductive film and base material, where the conductive film is formed by drying conductive ink; and (2) a preparation method of the RFID antenna, comprising: (i) coating conductive ink on surface of base material, and drying to obtain conductive film with a thickness of 10-25 microns; (ii) roll-pressing and transferring conductive film to surface of base material with glue; and (iii) laser etching or mechanical cutting surface of conductive film according to designed antenna pattern. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flow chart of preparation method of RFID antenna. (Drawing includes non-English language text).