▎ 摘　　要

NOVELTY - The utility model claims a composite nano PVC plastic particle, comprising a PVC colloidal particle main body; the PVC colloidal particle main body is provided with a through hole passing through the PVC colloidal particle main body; the PVC colloidal particle main body is provided with a nano moisture-proof coating completely covered on the PVC colloidal particle main body; the nano moisture-proof coating is further provided with graphene heat-resistant coating completely covering the nano moisture-proof coating. The utility model has simple structure, strong moisture resistance, oxidation resistance and high temperature resistance, which effectively solves the problem that the traditional PVC colloidal particles in the process of storing the moisture in the air, it will be influenced by the high temperature to decompose the toxic gas, damage the health of human body.