▎ 摘　　要

NOVELTY - A damping material sound-absorbing cotton includes sound-absorbing cotton layer (1) for covering surface and damping sheet layer (4) provided on middle portion of cotton. The damping sheet layer comprises 30-45 pts. wt. waste rubber, 20-30 pts. wt. waste cotton hemp modifying polyisoprene rubber, 20-35 pts. wt. carbon fiber, 10-15 pts. wt. modified nano-graphene, 3-9 pts. wt. flexibilizer, 2-8 pts. wt. nano white carbon black, 3-5 pts. wt. nano-calcium carbonate, 1-3 pts. wt. coupling agent, 2-4 pts. wt. compatibilizer, 0.5-1.5 pts. wt. mildew-proof agent, 1-2 pts. wt. antioxidant and 0.5-1 pt. wt. UV absorbing agent. USE - Damping material sound-absorbing cotton. ADVANTAGE - The cotton has microstructure of damping sheet layer with improved sound absorption and silencing effect. By controlling noise in cavity enclosed by damped sheet layer and reinforcing ribs, the sound-absorbing honeycomb layer is used to muffle and absorb sound with multiple apertures to achieve design effect, improve toughness, strength and rigidity of sound-absorbing cotton, and have practicality and creativity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the cotton. Sound-absorbing cotton layer (1) Bonding layer (2) Flame-retardant layer (3) Damping sheet layer (4) Sound-absorbing honeycomb layer (5)