引言 目前,噪声控制工程使用广泛的吸声材料是玻璃棉矿渣棉和岩棉。近年来由于我国化纤工业的发展,也有利用纺织化纤下脚作为吸声材料。这类纤维性吸声材料本身不成型,在实际使用时,为了不使纤维下落,需要用一层很薄的如布(玻璃纤维布)包复,还要一层透声的穿孔板起支承、保护和装饰作用。 Introduction At present, a wide range of sound-absorbing materials used in noise control engineering are glass wool slag wool and rock wool. In recent years due to the development of China’s chemical fiber industry, but also the use of textile chemical fiber as a sound-absorbing material. Such fibrous sound-absorbing material itself is not formed, in actual use, in order not to drop the fiber, you need to use a thin layer of cloth (fiberglass cloth) wrap, but also a layer of sound through the perforated plate from the bearing , Protection and decoration effect.