The sound-absorbing cotton is actually different from the sound-absorbing cotton. The sound-absorbing cotton is mainly used for sound attenuation, and then the sound energy is converted into heat energy again. The sound-absorbing cotton is to block the sound transmission. The disadvantage is that sound energy reflection is easy to occur. If the sound insulation material is of good quality, it can play a very good sound insulation effect, that is, it can eliminate noise well.
The sound-absorbing cotton can be roughly divided into two types. The first is polyester fiber sound-absorbing cotton, and the second type is glass fiber sound-absorbing cotton. The general products are basically the same in terms of sound absorption effect, but the glass fiber is not environmentally friendly, and it will feel very good after contact with the skin Itchy, the construction is very inconvenient. The disadvantage of ordinary polyester fiber is that the fire performance is very poor, or there is no fire function, and the consequences of a fire accident are very serious. Therefore, when purchasing sound-absorbing cotton, it is necessary to choose the actual place and actual situation.