▎ 摘　　要

NOVELTY - Conductive ink with temperature-limiting characteristic comprises 12-40% carbon-based conductive filling material, 5-8% conductive auxiliary materials, 7-13% temperature limiting material, 10-28% resin bonding material, 9.5-14% additive, 28-50% solvent. The conductive auxiliary materials are nickel-chromium alloy powder the temperature-limiting material is titanium diboride heat-sensitive conductive material. The Curie temperature of the titanium diboride heat-sensitive conductive material is 60-80degreesC. USE - Used as conductive ink with temperature-limiting characteristic. ADVANTAGE - The conductive ink has stable self-limiting temperature effect; prevents circuit damage and heat attenuation phenomenon caused by over-heat of the circuit and the conductive ink is used as a heating ceramic tile; has high circulating service life and fatigue resistance; PTC effect of the conductive ink can bear several times of overheating impact without failure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing conductive ink with temperature-limiting characteristics, comprising (i) mixing carbon-based conductive fillers, conductive auxiliary materials, temperature-limiting materials, resin binders, additives and solvents, ball milling for more than 30 minutes, grinding and dispersing to a particle size of less than 10 um to obtain temperature-limiting conductive ink with a viscosity of 80-120 Pas; and (ii) stirring, mixing high-density polyethylene, low-density polyethylene, titanium diboride, carbon black, flame retardant, stearic acid, crosslinking agent and antioxidant to obtain a mixture; and maturing the mixture at 80-100degreesC for 1 hour to obtain semi-finished product; and mixing semi-finished product at 140-180degreesC for 40-65 minutes.surface enhanced Raman scattering comprises the following steps organic framework ferric trichloride ultrasonic dissolving terephthalic acid transferring to high pressure kettle stopping reaction cooling at room centrifuging and separating washing ethanol to stir and centrifuging