What are the differences in sound insulation performance between different materials? How do I choose the one that best suits my needs?

Noise pollution is ubiquitous in modern life, from bustling streets to noisy construction sites, causing numerous disturbances to our lives, work, and rest. Choosing the right sound insulation materials has become crucial in combating noise pollution. However, the market offers a wide variety of sound insulation materials, each with vastly different soundproofing effects. So how should one choose?

Common sound insulation materials include sound-absorbing cotton, sound-absorbing felt, foam materials, and solid wall materials, each with its own sound insulation principles and effects. Sound-absorbing cotton, such as glass wool and rock wool, mainly absorbs sound energy through the pores between its fibers, converting it into heat energy for dissipation, and is particularly effective at absorbing mid-to-high frequency sound. However, these materials often have environmental problems; for example, glass wool fibers are very fine, and if accidentally inhaled, they may damage the respiratory tract.

Sound insulation felt is a relatively dense, flexible material that primarily works by reflecting and blocking sound transmission. It offers good sound insulation, especially effective at suppressing low-frequency noise. However, sound insulation felt is quite rigid, making installation somewhat inconvenient, and it may emit an odor.

Foam materials, such as polyurethane foam, have some sound absorption and cushioning properties. They are lightweight and inexpensive, but their sound insulation performance is relatively weak, generally only suitable for occasions where sound insulation requirements are not high. Furthermore, their fire resistance is poor, posing a safety hazard.

Solid wall materials, such as brick walls and concrete walls, rely on their own weight to block sound transmission, providing good sound insulation for various frequencies. However, this method is costly and cannot be flexibly applied to the renovation of already decorated spaces.

Furthermore, its installation is extremely convenient. Lightweight and easy to cut, it can be flexibly adjusted to suit different installation spaces and needs. No professional tools or complex installation techniques are required; ordinary users can easily complete the installation, significantly saving on construction costs and time.