How does glass fiber sound-absorbing board absorb sound

Time2021-01-28 14:26:38

Glass fiber sound-absorbing board is widely used in building decoration. It is a board product with strong decoration and good sound-absorbing effect, which is of great help to the improvement of indoor environment. Glass fiber sound-absorbing board has the advantages of good molding, small bulk density, low thermal conductivity, thermal insulation, good sound-absorbing performance and corrosion resistance.

Glass fiber sound-absorbing board is a kind of artificial inorganic fiber, which can effectively control and adjust the indoor reverberation time, reduce noise and improve sound quality. Used in air-conditioned places, it can reduce the impact of the outside on the indoor temperature, so as to effectively save energy. It has excellent moisture-proof performance and can maintain the stability of flatness in any humid environment. A prominent feature of glass fiber sound-absorbing board is sound-absorbing function. It can improve the impact of noise on indoor environment and create a more comfortable living environment for people.

Glass fiber sound-absorbing board is a kind of open hole structure. Sound can bounce between gaps through gaps or cavities, so that sound can be transformed into heat energy and consumed, so as to achieve the function of attenuating sound waves. It mainly uses the principle of thin plate resonance sound absorption. In terms of resonance frequency, the violent vibration of glass fiber sound-absorbing plate can absorb a large amount of sound energy, while there are countless tiny pores in the middle of the sound-absorbing plate, which can absorb external audio. Sound waves go deep into the material along these pores, rub with the material, and convert sound energy into heat energy.

The structural characteristics of glass fiber sound-absorbing board can meet the requirements of sound-absorbing principle, and play a role in buffering and absorbing sound waves, so as to reduce the impact of noise. Ordinary decorative materials have no sound absorption effect, or the sound absorption effect is relatively small. When the sound wave reaches the material surface, it will not be absorbed, but reflected, resulting in relatively large noise.

At present, the external environment is relatively noisy. The sounds from machines, vehicles and stereos together cause great noise and bring great troubles to people's work and life. Some residents find it difficult to rest at night due to noise problems, which poses great harm to their physical and mental health.

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