Using a self-made material of ethylene-propylene rubber (EPR) and a modified polypropylene (PP) flame-retarding foamed material as the absorbor,this paper studies the sound absorption proporty and regulations.

• 本文以自行研制的乙丙橡胶（EPR） 改性聚丙烯（PP）基阻燃泡沫材料制成吸声体，研究其吸声特性及规律。