With the continuous advancement of architectural acoustic technology, the types of sound-absorbing panels are becoming increasingly diverse to meet the acoustic needs of different scenarios.
Perforated sound-absorbing panels are one of the most common types. The sound absorption principle of this type of sound-absorbing panel is based on a large number of tiny and interconnected pore structures inside it. When sound is transmitted, the air vibrates in the pores, and due to friction and viscous resistance, the sound energy is converted into heat energy and absorbed. Common representatives include rock wool sound-absorbing panels and glass wool sound-absorbing panels. Rockwool sound-absorbing panels are known for their excellent fire-proof properties and are often used in places with strict fire-proof requirements, such as public areas in large shopping malls and high-rise office buildings. It not only effectively absorbs sound, but also prevents the spread of fire when a fire occurs, ensuring the safety of people and property. Glass wool sound-absorbing panels stand out among many sound-absorbing materials for their excellent sound-absorbing performance. They are especially suitable for places with extremely high requirements for sound quality, such as professional recording studios and music studios. They can accurately absorb sounds of various frequencies and provide a good sound quality for audio. Recording creates a pure acoustic environment.
Fiber sound-absorbing panels are also an important category of sound-absorbing panels. It uses natural or artificial fibers as its main raw materials. Wood fiber sound-absorbing board is a typical example. It is made of wood fiber through a special process. It not only retains the natural texture of the wood, is beautiful, but also has good sound-absorbing performance. In theaters, conference rooms and other places, wood fiber sound-absorbing panels are often used for wall decoration, which can not only effectively absorb sound, but also add a warm and natural atmosphere to the space. Polyester fiber sound-absorbing panels are also very popular. They are made of polyester fibers through hot pressing and are rich in colors and environmentally friendly and non-toxic. It can be directly pasted on the wall, which is easy to install and widely used in home theaters, children’s rooms and other indoor spaces that have high requirements for environmental protection and aesthetics.
The perforated sound-absorbing panel achieves the sound absorption effect by evenly perforating the panel and combining it with the air layer behind it. When sound contacts the perforated plate, part of the sound is absorbed by the surface of the plate, while the other part enters the air layer behind through the perforations and is further absorbed in the air layer. Metal perforated sound-absorbing panels are often used in large public spaces such as industrial plants and subway stations due to their high strength and durability. They can withstand large traffic and environmental pressure while effectively reducing noise. Gypsum perforated sound-absorbing panels are light in weight and have good fire resistance. They are widely used in interior decoration and can be used on ceilings or walls to create a quiet environment indoors.
Resonance sound-absorbing panels use the principle of resonance to absorb sound. When the sound frequency matches the natural frequency of the resonance chamber, resonance is induced, and the sound energy is converted into mechanical energy and consumed. The film resonance sound absorbing panel is a representative of this type. It forms a resonance system with the air layer behind it by installing a film on a frame. This type of sound-absorbing panel has a good absorption effect on low-frequency sounds and is often used in places where low-frequency noise is more prominent, such as underground parking lots, low-frequency equipment rooms, etc., effectively solving the problems caused by low-frequency noise.
Different types of sound-absorbing panels have their own characteristics. In practical applications, it is necessary to comprehensively consider factors such as the acoustic requirements of the venue, the spatial environment, and aesthetic requirements, and reasonably select sound-absorbing panels to achieve the best sound absorption effect.
