▎ 摘　　要

NOVELTY - A graphene modified foamed gypsum sound absorbing material comprises 58.00-64.00 %mass industrial by-product gypsum, 0.00-0.30 %mass retarder, 30.57-36.00 %mass water, 3.00-4.50 %mass foaming agent, 0.01-0.03 %mass catalyst, 1.20-2.00 %mass foam stabilizer and 0.00-0.10 %mass graphene oxide. USE - Graphene modified foamed gypsum sound-absorbing material. ADVANTAGE - The low-carbon sound-absorbing material has improved strength, toughness and sound absorption property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the sound absorbing material.