▎ 摘　　要

NOVELTY - Preparation of high thermal stability and ultra-low polymerization degree PVC composite material involves using 100 parts mass PVC with ultra-low polymerization degree, 0.5-2.5 parts mass modified graphene oxide, 1-3 parts mass additive and 1-3 parts mass stabilizer as raw material. The additive is selected from one or more of aromatic high-temperature nylon, polyphenylene sulfide and polyether ether ketone. USE - Preparation of high thermal stability and ultra-low polymerization degree PVC composite material (claimed). ADVANTAGE - The method provides PVC composite material with improved thermal stability and ultra-low polymerization degree.