▎ 摘　　要

NOVELTY - Composite absorbent porous material comprises 100 pts. wt. polyether polyol, 30-60 pts. wt. toluene diisocyanate, 0.05-0.4 pts. wt. nano carbon solution, 0.2-0.5 pts. wt. nano white carbon black, 10-20 pts. wt. deionized water, 5-25 pts. wt. dimethyl methyl phosphonate, 2-8 pts. wt. graphene oxide, 10-20 pts. wt. barium titanate, 1-3 pts. wt. nano zinc oxide, 0.5-2 pts. wt. nano-tungsten oxide, 2-8 pts. wt. zinc borate, 0.02-0.4 pts. wt. stannous octoate, 0.03-0.6 pts. wt. triethylene diamine, 0.2-3 pts. wt. organosilicone surfactant and 2-8 pts. wt. sodium bicarbonate. USE - Used as composite absorbent porous material. ADVANTAGE - The material has less smoke, toxicity, flame retardancy and wide absorption frequency of absorbed waves. DETAILED DESCRIPTION - Composite absorbent porous material comprises 100 pts. wt. polyether polyol, 30-60 pts. wt. toluene diisocyanate, 0.05-0.4 pts. wt. nano carbon solution, 0.2-0.5 pts. wt. nano white carbon black, 10-20 pts. wt. deionized water, 5-25 pts. wt. dimethyl methyl phosphonate, 2-8 pts. wt. graphene oxide, 10-20 pts. wt. barium titanate, 1-3 pts. wt. nano zinc oxide, 0.5-2 pts. wt. nano-tungsten oxide, 2-8 pts. wt. zinc borate, 0.02-0.4 pts. wt. stannous octoate, 0.03-0.6 pts. wt. triethylene diamine, 0.2-3 pts. wt. organosilicone surfactant and 2-8 pts. wt. sodium bicarbonate, where polyether polyol has a hydroxy value of 30/ 60 mg potassium hydroxide/g and isocyanate index of the toluene diisocyanate is 0.6-1.15. An INDEPENDENT CLAIM is also included for preparing composite absorbent porous material, comprising (i) mixing polyether polyol, dimethyl methyl phosphonate, nano carbon solution, nano white carbon black, barium titanate, zinc borate, stannous octoate, triethylenediamine, deionized water and organosilicone surfactant, stirring well at room temperature and dispersing ultrasonic dispersion to obtain primary mixture; (ii) adding toluene diisocyanate, nano zinc oxide and nano-tungsten oxide into the primary mixture, stirring ultrasonically for 15-30 minutes, adding carboxy carbon nanotubes and sodium bicarbonate, pouring quickly into a mold, performing foaming at room temperature for 30-90 minutes to obtain wave absorbing material gel; and (iii) freeze drying the wave-absorbing material gel .