METHOD FOR PRODUCING SILVER NANOWIRE INK, SILVER NANOWIRE INK AND TRANSPARENT CONDUCTIVE COATING FILM

摘要

[Problem];To provide a method for producing nanowires that has high industrial practicability and a conductive film that has high transparency and high conductivity.;[Solution];A method for producing a silver nanowire ink, including mixing urethane resin particles having an average particle diameter of 200 nm or less, containing a urethane resin having a degree of elongation of less than 500%, with a silver nanowire dispersion liquid. The urethane resin may have an average value of 100% modulus (100% Mo), for example, of 6.0 MPa or more. The content of the urethane resin colloid or the urethane resin emulsion may be from 0.01 to 2.0% by mass based on the total amount of the silver nanowire ink. The content of silver is preferably from 0.01 to 2.0% by mass based on the total amount of the silver nanowire ink. The content of the viscosity modifier is preferably from 0.01 to 2.0% by mass based on the total amount of the silver nanowire ink.