▎ 摘　　要

NOVELTY - Conductive ink composition comprises 50-60 pts. wt. 2,4-toluene diisocyanate, 30-35 pts. wt. polyethylene glycol, 60-70 pts. wt. epoxy resin, 10-15 pts. wt. conductive carbon black, 4-5 pts. wt. conductive graphite, 1-2 pts. wt. curing agent, 6-8 pts. wt. solvent, and 3-5 pts. wt. dispersant. The curing agent is at least one of aliphatic amine, alicyclic amine, aromatic amine, polyamide, acid anhydride and tertiary amine. The solvent is ethanol. The epoxy resin is bisphenol-A-type epoxy resin (E-51). USE - The conductive ink composition is useful in transparent conductive film, and flexible printed circuit, which is used in solar photovoltaic technology field. ADVANTAGE - The conductive ink composition and transparent conductive film has good adhesive force, good adhesiveness, good mechanical strength, and good adhesion with respect to the printed conductive circuit. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparation method of the conductive ink composition, comprising (i) reacting 2,4-toluene diisocyanate with polyethylene glycol to synthesize an isocyanate-terminated polyurethane prepolymer, mixing the isocyanate-terminated polyurethane prepolymer with an epoxy resin, and modifying the epoxy resin to obtain a modified epoxy resin, and characterizing the structure of polyurethane prepolymer and modified epoxy resin by Fourier transform infrared spectroscopy, i.e. FTIR, (ii) using the modified epoxy resin as the connecting material, adding conductive carbon black and conductive graphite into the connecting material in sequence, stirring and mixing evenly with a mixer to obtain conductive mixed raw material, (iii) adding curing agent, solvent and dispersant in sequence to the conductive mixed raw material, and pressurizing and stirring to mix evenly in the mixer, heating and concentrating, and cooling to obtain conductive ink composition, and (iv) quantitatively filling the conductive ink, and sealing in a low-temperature and humid environment for storage; transparent conductive film, comprising 50-55 pts. wt. tin oxide, 3-5 pts. wt. antimony trichloride, 0.8-1 pts. wt. absolute ethanol, 30-35 pts. wt. silicon dioxide solution and 15-18 pts. wt. conductive filler. The conductive filler is at least one of carbon nanotubes, graphene and poly 3,4 ethylenedioxythiophene; and installation method of the transparent conductive film, comprising (A) wiping the substrate dry with ethanol by setting the float glass as the substrate, adding multiple pieces into the silicon dioxide solution for impregnation, slowly lifting out, and drying to obtain primary impregnated substrate, (B) thoroughly grinding antimony trichloride, adding into absolute ethanol, and stirring for 1-1.2 hours to obtain a mixed powder, adding the mixed powder into the tin oxide solution, mixing and stirring evenly, adding the conductive filler, mixing and stirring evenly to obtain mixed base liquid, (C) adding the initial impregnated substrate into the mixed base solution, impregnating for is 5-7 minutes, slowly lifting the impregnated substrate from the mixed base solution to obtain target substrate, and (D) drying the target substrate in an environment of 100-105℃ for 15-17 minutes, and heating to 450-480℃ for 20-25 minutes to obtain a transparent conductive film.