What are the differences in the sound insulation effects of different materials?

There are many types of sound insulation materials, and each type has a different sound insulation principle. Different sound insulation materials need to be used according to different sound insulation requirements.

Polyester fiber cotton

Polyester fiber cotton is a safe and environmentally friendly sound insulation cotton. It is made of the same material as the clothes we wear, harmless and skin-friendly, and is often used for home sound insulation. When sound passes through polyester fiber cotton, it continuously reflects and transforms within the micropores, releasing sound energy in the form of heat energy.

Glass wool

Glass wool is a not very safe sound insulation material, often used in commercial places such as shopping malls and KTVs. Broken glass wool is very dangerous; the glass fibers can get stuck in the skin or be inhaled into the lungs. Therefore, protective measures must be taken when installing glass wool.

Rubber and plastic cotton

Rubber and plastic sound insulation cotton is mainly made by mixing rubber and plastic. This material has high flexibility and elasticity, and can effectively absorb and reduce the transmission of sound. It has a high density, good thermal insulation performance and sound insulation effect, so it is widely used in the construction industry.

Sound-absorbing cotton

The sound insulation effect of sound-absorbing cotton is not as good as the above-mentioned sound insulation cottons. Its main function is to reduce sound reverberation, thereby achieving better sound quality. Therefore, it is often used in places with high requirements for sound quality such as live broadcast rooms, studios, and vocal music rooms.