PHOSPHOROUS-CONTAINING SILICON FLAME RETARDANT AND PREPARATION METHOD THEREFOR, FLAME RETARDANT RESIN COMPOSITION, PREPREG AND METAL FOIL-CLAD LAMINATE

摘要

Provided are a reactive phosphorous-containing silicon flame retardant, a preparation method therefor, a flame retardant resin composition, a prepreg and a metal foil-clad laminate.The reactive phosphorous-containing silicon flame retardant of the present invention has a structure represented by formula (I), can act both as a curing agent for a thermosetting resin and as a halogen-free flame retardant, and can achieve a flame retardant effect of UL94 V-0 at a lower level of phosphorus content.