▎ 摘　　要

NOVELTY - A graphene oxide organic phosphonic acid zirconium hetero-coupling flame retardant (I)-(III) is new. USE - Graphene oxide organic phosphonic acid zirconium hetero-coupling flame retardant used for polymer flame retardant comprising polypropylene, polyethylene, epoxy resin or polyvinyl alcohol (all claimed). ADVANTAGE - The product is solid, has stable performance and good dispersibility, enhances rubber surface mechanical property and heat stability performance, does not generate poisonous gas, overcomes halogen flame retardant defect, prevents melting droplet, effectively isolates air, captures free radical, delays polypropylene combustion, and generates coupling of flame retardant function. DETAILED DESCRIPTION - A graphene oxide organic phosphonic acid zirconium hetero-coupling flame retardant of formulae (I)-(III) is new. n= greater than or equal to 0; a1=graphene oxide layer plane structure; and a2=organic phosphonic acid zirconium sheet plane structure. An INDEPENDENT CLAIM is included for preparation of compound (I).