▎ 摘　　要

NOVELTY - Producing planar heating element paste composition comprises heat-treating carbon nanotubes; silanizing using silane; preparing a dispersion by adding carbon nanotubes having a silane functional group formed by the silanization treatment, graphene particles, and mica modified with titanium dioxide to a solvent; adding a mixed binder mixed with hexamethylene diisocyanate, polyvinyl acetal and phenolic resin to a solvent, mixing solvent to which the mixed binder is added with dispersion, and stirring, where the step of silanizing the heat-treated carbon nanotubes using silane may include acid-treating the heat-treated carbon nanotubes with aqua regia with N-(3-(trimethoxysilyl)propyl)aniline and preparing first mixed solution by mixing silane, water and ethanol and stirring; preparing silanol solution by heat-treating stirred first mixed solution; stirring second mixed solution by mixing silanol solution and acid-treated carbon nanotubes; and heat-treating second mixed solution. USE - The planar heating element paste composition is useful for planar heating element and film heater for antifreeze based on carbon nanotube (all claimed), and as functional materials in electricity, electronics, automobiles, ships, aircraft, sports and military applications. ADVANTAGE - The planar heating element paste composition prevents freezing of the piping system, and has anti-static, electromagnetic wave shielding, radar wave absorption, sound insulation, soundproofing, heat dissipation, and heat generation, conductivity, workability, adhesion, scratch resistance, low-voltage, low-power driving and excellent bending resistance and environmental resistance, improved abrasion resistance, adhesion and temperature uniformity, excellent withstand voltage, durability, bending resistance, and environmental resistance characteristics, excellent and low heat loss rate, saves energy with lower power consumption compared to heating wires and metal heaters, and low construction cost due to the space-time space approximately twice wider than that of metal heaters. DETAILED DESCRIPTION - Producing planar heating element paste composition comprises heat-treating the carbon nanotubes; silanizing heat-treated carbon nanotubes using silane; preparing a dispersion by adding carbon nanotubes having a silane functional group formed by the silanization treatment, graphene particles, and mica modified with titanium dioxide to a solvent; adding a mixed binder mixed with hexamethylene diisocyanate, polyvinyl acetal and phenolic resin to a solvent, mixing the solvent to which the mixed binder is added with the dispersion, and then stirring, where the step of silanizing the heat-treated carbon nanotubes using silane may include acid-treating the heat-treated carbon nanotubes with aqua regia with N-(3-(trimethoxysilyl)propyl)aniline and preparing first mixed solution by mixing silane, water and ethanol for 20-30 minutes and stirring; preparing a silanol solution by heat-treating the stirred first mixed solution at 55-60 degrees C; stirring the second mixed solution prepared by mixing the silanol solution and the acid-treated carbon nanotubes for 50-60 minutes; and heat-treating the second mixed solution at a temperature of 110-130 degrees C for 3-4 hours. INDEPENDENT CLAIM are also included for: (1) planar heating element paste composition comprising conductive particles including carbon nanotube particles and graphene particles, hexamethylene diisocyanate, polyvinyl acetal, and a mixed binder in which a phenol-based resin is mixed, organic solvents, dispersant, and mica modified with titanium dioxide; (2) planar heating element comprising carbon nanotubes formed by printing the planar heating element paste composition; and (3) a film heater for antifreeze based on carbon nanotube comprising a planar heating element.