▎ 摘　　要

NOVELTY - An absorbent material comprises 100-125 pts. wt. polyacrylic acid superabsorbent resin, 45-53 pts. wt. poly(acrylic acid-acrylamide) superabsorbent resin, 30-36 pts. wt. acrylic acid/acrylamide/2-acrylamido-2-methylpropanesulfonic acid ternary copolymerized porous superabsorbent resin, 22-27 pts. wt. graphene oxide, and 8-11 pts. wt. carboxyl-containing carbon nanotubes. The monomer units in macromolecular chain of the poly(acrylic acid-acrylamide) superabsorbent resin includes acrylic acid and acrylamide in a ratio of 10:(8.5-12.5). The monomer units in macromolecular chain of acrylic acid/acrylamide/2-acrylamido-2-methylpropanesulfonic acid ternary copolymerized porous superabsorbent resin includes acrylic acid, acrylamide and 2-acrylamido-2-methylpropanesulfonic acid in a ratio of 10:(7-9):(3.5-4.5). The graphene oxide is edge graphene oxide, and groups grafted on edge of monolithic edge of edge graphene oxide include carboxyl group, hydroxyl group, epoxy group and carbonyl group. USE - Absorbent material is used for paper diaper (claimed). ADVANTAGE - The absorbent material has fast absorption rate, large absorption amount for urine, excellent antibacterial property and effect of adsorbing irritating gases such as ammonia, and low re-infiltration amount, and can effectively reduce urine leakage in actual use, and odor during use. The diaper using the absorbent material provides excellent comfort to baby. DETAILED DESCRIPTION - An absorbent material comprises 100-125 pts. wt. polyacrylic acid superabsorbent resin, 45-53 pts. wt. poly(acrylic acid-acrylamide) superabsorbent resin, 30-36 pts. wt. acrylic acid/acrylamide/2-acrylamido-2-methylpropanesulfonic acid ternary copolymerized porous superabsorbent resin, 22-27 pts. wt. graphene oxide, and 8-11 pts. wt. carboxyl-containing carbon nanotubes. The monomer units in macromolecular chain of the poly(acrylic acid-acrylamide) superabsorbent resin includes acrylic acid and acrylamide in a ratio of 10:(8.5-12.5). The monomer units in macromolecular chain of the acrylic acid/acrylamide/2-acrylamido-2-methylpropanesulfonic acid ternary copolymerized porous superabsorbent resin includes acrylic acid, acrylamide and 2-acrylamido-2-methylpropanesulfonic acid in a ratio of 10:(7-9):(3.5-4.5). The graphene oxide is edge graphene oxide, and groups grafted on edge of monolithic edge of the edge graphene oxide include carboxyl group, hydroxyl group, epoxy group and carbonyl group, in which content of carboxyl group is 37.5-41.8%, and content of hydroxyl group is 29.2-32.4%. INDEPENDENT CLAIMS are included for the following: (1) preparation of absorbent material, which involves mixing polyacrylic acid super absorbent resin, poly(acrylic acid-acrylamide) super absorbent resin, and acrylic acid/acrylamide/2-acrylamido-2-methylpropanesulfonic acid ternary copolymerized porous superabsorbent resin at 55-60 degrees C, vacuum drying until the moisture content is less than 8%, adding graphene oxide and carboxyl-containing carbon nanotubes, adding to crusher, crushing to less than 100 microns, mixing resultant mixture with deionized water for more than 2 hours, filtering, and freeze-drying to moisture content of less than 5% in a freeze dryer; and (2) paper diaper, which comprises a core comprising the absorbent material.