What are the common materials for sound insulation and noise reduction?
Release time：
2023-10-17
It mainly works together with gypsum board for wall and ceiling sound insulation, and is also commonly used for sound insulation and damping vibration reduction of pipelines and mechanical equipment.
1. Soundproof felt
It mainly works together with gypsum board for wall and ceiling sound insulation, and is also commonly used for sound insulation and damping vibration reduction of pipelines and mechanical equipment. Indoor soundproofing felt is not felt, felt is light and soft, while soundproofing felt, although thin, is very heavy.
The soundproof felt is made of odorless EPDM rubber and over a dozen other organic minerals in a certain proportion. It is black, environmentally friendly, and odorless. It has good soundproof effects on low-frequency and high-frequency sounds, and can effectively suppress the propagation of various vibrations. The thickness of indoor soundproofing felt varies from 1mm, 2mm, and 3mm, and the material has good flexibility and can be easily bent, making it very convenient to use and fireproof.
2. Sound insulation coating
The main soundproofing material for indoor soundproofing coatings is nano multi-layer structural materials, with coating molecules sandwiched in the middle. The entire intermediate membrane is evenly distributed with particles with sound insulation effects, which play a role in sound absorption and insulation by reducing the transmitted sound energy.
There are also some sound-absorbing nanomaterials in the soundproof coating. The surface of the sound-absorbing nanomaterials is filled with small pores with a diameter of about 1um, which penetrate from the surface to the center. The volume of the pores accounts for about 50% of the particle area and have good adsorption performance.
3. Soundproof cotton
Indoor soundproofing cotton is a type of sponge formed by special treatment of equipment, which is filled with small voids and a semi open structure inside. It can absorb a large amount of incoming sound energy, attenuate sound waves, and reduce the interference and echo of indoor reflected sound.
4. Soundproof panel
Sound insulation panels are generally high-density materials, and the classification of building sound insulation engineering can be based on the location and method of sound insulation.
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