▎ 摘　　要

NOVELTY - Phosphaphenanthrene silane graft modified graphene (I) is new. USE - Phosphaphenanthrene silane graft modified graphene. ADVANTAGE - The phosphaphenanthrene silane graft modified graphene has the intramolecular synergistic flame retardant of phosphaphenanthrene and graphene, and also has the synergistic effect of phosphorus and silicon double elements of the synergistic flame retardant of phosphaphenanthrene and graphene, phosphine phenanthrene and graphene synergistic flame retardant. DETAILED DESCRIPTION - Phosphaphenanthrene silane graft modified graphene of formula (I) is new.. An INDEPENDENT CLAIM is included for a method for preparing phosphaphenanthrene silane graft modified graphene of formula (I).