▎ 摘　　要

NOVELTY - A composite flame retardant material comprises 100 pts. wt. polyether polyol, 20-70 pts. wt. toluene diisocyanate, 0.2-1 pt. wt. nano-silica, 10-20 pts. wt. deionized water, 5-20 pts. wt. dimethyl phosphate, 2-8 pts. wt. graphene oxide, 10-25 pts. wt. ferrite, 1-5 pts. wt. zirconia, 2-8 pts. wt. zinc borate, 0.02-0.4 pt. wt. stannous octoate, 0.03-0.6 pt. wt. triethylenediamine, 0.2-3 pts. wt. silicone surfactant and 1-10 pts. wt. sodium bicarbonate. USE - Composite flame retardant material. ADVANTAGE - The composite flame retardant material is nontoxic, and has improved flame retardant effect and wave-absorbing property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of composite flame retardant material, which involves mixing raw materials, stirring, reacting, freezing and drying.