▎ 摘　　要

NOVELTY - Preparing graphene oxide composite material involves preparing graphene oxide solution, preparing four-arm poly(ethylene glycol)-polycaprolactone-poly(ethylene glycol) solution, mixing graphene oxide solution with four-arm poly(ethylene glycol)-polycaprolactone-poly(ethylene glycol) solution so that concentration of the graphene oxide in mixed solution is 0.15-0.4 wt.%, and adding mixture volume of 8-12 wt.% of photoinitiator, and mixing uniformly to obtain solid. USE - Method for preparing graphene oxide composite material (claimed). ADVANTAGE - The method enables to prepare graphene oxide composite material which has greatly improved strength and biocompatibility. DETAILED DESCRIPTION - Preparing graphene oxide composite material involves preparing graphene oxide solution, preparing four-arm poly(ethylene glycol)-polycaprolactone-poly(ethylene glycol) solution, mixing graphene oxide solution with four-arm poly(ethylene glycol)-polycaprolactone-poly(ethylene glycol) solution so that concentration of the graphene oxide in mixed solution is 0.15-0.4 wt.%, and adding mixture volume of 8-12 wt.% of photoinitiator, and mixing uniformly to obtain solid. The solid is melted at 60 degrees C, mixture is homogeneously stirred, placed in uniform film, and placed in a UV cross-linking apparatus at light intensity of 390-410 uw/square centimeter for 25-35 minutes, cooling material, and stripping down composite material to obtain final product.