Classification and characteristics of commonly used sound insulation materials in decoration

With the continuous progress of society and the continuous improvement of the quality of life, people have higher and higher requirements for the home environment. The emergence of various new building materials, such as fireproof materials, sound insulation materials, and waterproof materials, has been hot for consumers. purchase.

Brand shop: balcony window

The emergence of soundproofing material allows you to get rid of the noisy sound, can make you work a tired day, get a moment of quiet in a quiet room, therefore, this product is highly favored by consumers. Here's to introduce you to sound insulation material.

First of all, let's first find out what is the sound insulation material?

Sound insulation materials are materials that can isolate, isolate, and separate sound, noise, and vibration sounds. Because people live in many places with a certain degree of noise and affect normal life, sound insulation materials must be used to maintain people's normal lives.

Classification of sound insulation materials

There are many kinds of sound insulation materials, common people generally have: building insulation materials, KTV sound insulation materials, decoration noise insulation materials, noise damping materials, vibration damping materials, sound-absorbing decorative materials, decorative sound-absorbing cotton board, sound insulation board, sound insulation and fireproof materials Wait.

Common specifications thickness: 2.0mm type soundproof material, 4.0mm type soundproof material, 1.2 type soundproof material, etc.

Soundproof material characteristics

There are various kinds of soundproofing materials, which are common in everyday life such as solid bricks, reinforced concrete walls, woodblocks, gypsum boards, iron plates, sound insulation felts, fiberboards, and so on.

Strictly speaking, almost all materials are soundproofed. The difference is that the volume of the different materials is different. The same material, due to the different surface density, there is a relatively large change in the amount of sound insulation.

The amount of sound insulation follows the principle of quality, that is, the greater the dense density per unit area of ​​the sound insulation material, the greater the amount of sound insulation, and the area density is directly proportional to the amount of sound insulation.

The sound-absorbing material has a certain elasticity in the physical, and when the sound wave is incident, vibration is excited to propagate in the interlayer. When the acoustic wave is not incident perpendicularly, but is incident at an angle θ to the interlayer, the acoustic wave fronts reach the surface of the interlayer in turn, and the bending vibration waves in the acoustically excited interlayer of the first-pass barrier propagate laterally along the interlayer. When the speed of propagation coincides with the speed of sound waves in the air that gradually reach the surface of the barrier, the acoustic waves reinforce the vibration of the bending waves. This phenomenon is called the coincidence effect. The amplitude of the bending wave vibration is particularly large, and the energy of radiating the sound wave to the other side of the air is also particularly large, thereby reducing the sound insulation effect.

Buy Materials Decorative Window Decoration Partition Partition Door