| 摘要 |
PURPOSE: A soundproof material with excellent constructability for reducing noise between stories of a building is provided to block toxicity generated by cement and the like and to block noise and vibration between stories of a building while also improving insulation performance of a building wall body. CONSTITUTION: A soundproof material for reducing interlayer noise comprises 0.1-20 wt% of pulverized mixture, 20-30 wt% of ethylene vinyl acetate resin, 20-30 wt% of ionic exchangeable water, 25-40 wt% of calcium carbonate, 2-4 wt% of titanium dioxide, 0.1-1 wt% of iron oxide, and 0.1-4 wt% of multiwall carbon nanotube. The pulverized mixture comprises 50-96 wt% of oyster shell powder, and 1-20 wt% of a powder of aluminum oxide, potassium oxide, magnesium oxide and calcium carbonate. |
