Sound insulation effect of polyester fiberboard

Polyester fiberboard is made by high hot pressing technology, which is cocoon-cotton-like, and can sound insulation in the noise range of 125/4000 Hz, and the sound insulation coefficient is above 0: 9. Polyester fiberboard is not only strong in sound insulation, but also decorative, green and easy to clean, and has become the first choice for decorative sound insulation and sound absorption materials in decoration.

Environmental protection sound insulation material

High-quality polyester fiberboard adopts high-pressure bonding, which can replace harmful traditional sound insulation boards such as sponge, glass fiber and rock wool. It is a new environmental protection sound insulation material.

Safe and reliable

It can directly contact with the human body, will not harm the human body, and will not release pollutants, so it is widely used in the field of architectural decoration. The flame retardant performance of polyester fiberboard can reach the national decoration standard B 1 level, and its oxygen index can also reach the national standard A level.

High noise reduction index

Through the understanding of sound insulation board, we know that the higher the density of sound insulation board, the higher the sound insulation ability, while the higher the density of polyester fiber, its noise reduction index can reach 0.79(GB? 47-83), the sound absorption index is also very high, which can reach NBC=0.8 1(GB-47-83), so the sound insulation effect of polyester fiberboard is the best.

Porous elastic plant sound-absorbing material

Generally speaking, the interlayer of polyester fiberboard will be rich in porous elastic plant sound-absorbing materials. For example, both sides and sides of polyester fiberboard are made of double-layer steel keel and gypsum board with a thickness of about 12mm, and then hollowed out by 75mm, and filled with ultra-fine glass wool light wall. Its average sound insulation capacity can reach 50dB, but its unit area is only 24mm, which is one tenth of the area of thick brick walls.

Fill completely

When the thickness of air interlayer reaches more than 5mm, the sound insulation capacity of each frequency band can be increased by 8- 10dB. For example, filling the air interlayer with new sound-absorbing materials for the stage can improve the sound insulation capacity by 2-8dB. It is worth noting that the degree of the secret room of the sound insulation board has great influence on the sound insulation effect. Therefore, when installing light wall with socket box, the position should be staggered and the surrounding gaps must be filled.