▎ 摘　　要

NOVELTY - Use of carbon nitride (C3N4) and its composite as a performance regulator in plastic. The carbon nitride and its composite are used as performance regulators for thermoplastic plastic by heating and melting with thermoplastic plastic, which is used to improve the melting temperature of the thermoplastic plastic, oxygen barrier properties and/or water vapor barrier properties. USE - The carbon nitride (C3N4) and its composite is useful as performance regulator in plastic, which is useful in functional product field and food, medicine, and fruit and vegetable quality. ADVANTAGE - The carbon nitride can control the performance adjustment of thermoplastic plastic plastic plastic by controlling the addition of carbon nitride and its composite.