Why did you choose to use sound-absorbing cotton? What are the performance characteristics of sound-absorbing cotton? Let’s get to know it together:
1. High sound-absorbing efficiency. Polyester fiber sound-absorbing cotton is a porous material. It was tested by the Institute of Acoustics of Tongji University. The test result of a 5cm thick product is NRC (Comprehensive Noise Reduction Coefficient): 0.79. There is still a lot of room for performance improvement;
2. Excellent environmental performance. It is tested by the National Building Materials Testing Center and reaches E1 level. It is evaluated that it can directly contact human skin.
3. The structure is compact and the shape is stable;
4. The product does not contain formaldehyde and is harmless to the human body. It does not add any glue during the molding process and uses fibers with different melting points to form. Experiments and practices have proved that it has no allergies to human skin, no pollution to the environment, and no smell. ；
5. Good waterproof performance, strong drainage after water immersion, sound absorption performance does not decrease, and the shape remains unchanged.
6.It can be used twice, it is easy to destroy, and there is no secondary pollution to the environment.
Post time: Oct-15-2021