How to reflect the sound absorption effect of glass fiber board?

Glass fiber board is a special building material, it is made of glass fiber and other chemical raw materials. Glass fiber board has a good sound absorption effect, and is widely used in construction and industrial places. Glass fiber board manufacturers will introduce the sound absorption effect of glass fiber board in detail, and explain its performance in practical applications.

Sound absorption principle of glass fiber board

Glass fiber board is a kind of sound absorption board, the principle of sound absorption is the use of fine pores and fibers on the board, so that the sound wave is absorbed and scattered when propagating in the material, reduce the reflection of the sound wave, so as to achieve the effect of reducing noise. The sound absorption principle of glass fiber board can be explained from two aspects of the material: porosity and fiber structure.

Porosity is one of the important parameters of glass fiber sheet. The higher the porosity, the greater the capacity of the plate to absorb sound waves. Another factor that affects the sound absorption effect of the sheet is the fiber structure. Glass fibers are responsible for absorbing high-frequency sound waves, but their structure also allows low-frequency sound waves to be efficiently scattered and absorbed. Therefore, the glass fiber board has a good sound absorption effect in the audio frequency range.

The sound absorption effect of glass fiber board

1. Acoustic performance test

The sound absorption effect of fiberglass panels can be tested by acoustic performance testing. The acoustic performance test usually includes the absorption coefficient and the noise propagation coefficient. The sound absorption coefficient is a signature parameter that measures a material's ability to absorb sound waves. The sound absorption coefficient ranges from 0 to 1, where 1 indicates that the material absorbs 100 percent of the sound wave. The noise propagation coefficient is used to test the isolation ability of the material to the noise, and it can reflect the propagation degree of the material to the noise.

2. Application scenario

Fiberglass panels are widely used in industrial and construction fields. For example, in high-noise places such as computer rooms, power stations and steel plants, the use of fiberglass panels can effectively absorb noise and reduce sound levels. In the field of construction, fiberglass panels are often used in places where silence is needed, such as sound rooms, recording rooms and offices. In addition, fiberglass panels are also commonly used for indoor sound insulation and heat insulation. For example, fiberglass panels can be used in hotels and homes to isolate sound and prevent temperature escape.

3. Measured data

The measured data is one of the important indicators to measure the sound absorption effect of glass fiber board. Studies have shown that 1-inch fiberglass panels can absorb up to 65% of sound waves in the frequency range of 1000 Hz, while reducing the change in air acoustic impedance by 50%. In addition, the measured data also show that the glass fiber plate can absorb 90% of the sound wave in the frequency range of 2 KHZ and 4 KHZ.

Sum up

In short, glass fiber board is an efficient sound absorption material, and its sound absorption effect has been widely used and proved. The sound absorption effect of glass fiber board has been fully reflected through acoustic performance testing, application scenarios and measured data. With the advancement of technology and the innovation of sound absorbing materials, we have reason to believe that the sound absorption effect of glass fiber board will be more effectively improved.