CYCLOTRIPHOSPHAZENE HALOGEN-FREE FLAME RETARDANT CONTAINING IMIDE STRUCTURE, AND PREPARATION METHOD AND USE

摘要

The present invention relates to a cyclotriphosphazene halogen-free flame retardant containing an imide structure. The halogen-free flame retardant has a structure of formula (1).The halogen-free flame retardant provided in the present invention has an intramolecular self-synergistic flame retarding effect, so that the flame retarding efficiency of the flame retardant is improved, and the amount of the flame retardant is reduced; and the halogen-free flame retardant can be well dispersed in a resin composition.