Composition of indoor sound insulation material
1, sound insulation board
Polymer materials are compounded in two plates to form a damping structure which is about a sound insulation plate bundle. When sound waves hit the sound insulation board, polymer materials will convert sound energy into heat energy under the action of shear stress, thus significantly blocking the transmission of sound.
2. Damping pad
The sound insulation and damping pad adopts a unique formula and technology, which is made of olefin damping pad materials. It has a unique flexible closed-cell structure and layered technology, which can control and buffer the sound transmission, and is an ideal floor sound insulation material. At the same time, it has excellent waterproof, moisture-proof, corrosion-resistant and compression flexural properties.
3, sound insulation sealant
Sound insulation sealant is an innovative product of sound insulation sealant in the sound insulation building materials market. It is a kind of sealant specially developed for the sealing application of professional sound insulation materials, which has excellent sound attenuation and vibration reduction characteristics, thus playing a role in high-efficiency sound insulation.
4, sound insulation wallboard
The soundproof wallboard adopts a special process formula, and by adding surfactant, it realizes ultra-fine micropore foaming and increases the sound absorption and sound insulation ability of the wall. A sound insulation layer is added inside the wallboard to form a double-suction sound insulation structure. Compared with similar common wallboard, the sound insulation capacity is improved by 6~8db.
5. Spatial sound absorber
A sound-absorbing member suspended in the upper part of the building space is used to reduce indoor noise or improve indoor sound quality. The invention has the characteristics of less materials, light weight, low investment, high sound absorption efficiency, flexible layout and convenient construction. Many countries began to use spatial sound absorbers in 1950s, and they were widely used in 1970s.
China has been using it since 1970s. In the 1980s, the application increased day by day. According to the use nature, area, story height, structural form, decoration requirements and sound source characteristics of the building, the spatial sound absorber can have various shapes such as plate, square block, cylinder, cone and sphere. Among them, the plate structure is the simplest and the most widely used.
6. Acoustic board
Acoustics board is a plate-like material with sound absorption and noise reduction function, which is mainly used for noise reduction in theaters, concert halls, museums, exhibition halls, libraries, interrogation rooms, galleries, auction halls, gymnasiums, lecture halls, multi-function halls, hotel lobbies, hospitals, shopping malls, schools, piano rooms, conference rooms, studios, recording studios, KTV rooms, bars, industrial workshops, computer rooms, families and other places.
Sound-absorbing decorative board is a new building material, which has excellent sound-absorbing performance and flame-retardant and fireproof effects. Generally, decorative fabrics of various colors and patterns are available, and some products can be processed into sound absorbers of various shapes according to design requirements.
7.scarf
Muffler is a noise reduction device installed on the airflow channel of aerodynamic equipment (such as blower, air compressor, etc.) or in the air intake and exhaust system. Muffler can block the propagation of sound waves and allow airflow to pass through, which is an effective tool to control noise.
8, insulating glass
Insulating glass consists of two or more layers of flat glass. Two or more pieces of glass are bonded around with aluminum alloy frame or rubber strip with high strength and good air tightness. A space is left between the sealed glasses, and inert gas is filled to obtain excellent heat insulation and sound insulation performance. Due to the air or gas sealed in the glass chamber
Poor thermal performance leads to excellent sound insulation effect.
9, laminated glass
Laminated glass means that PVB intermediate film is sandwiched between two or more pieces of glass. PVB intermediate film can reduce the amount of noise penetrating glass, reduce the noise decibel and achieve sound insulation effect.
At present, there are many kinds of sound insulation materials used for sound insulation in the market. Different sound insulation materials have different characteristics, and the available space is different. When purchasing sound insulation materials, we should understand their characteristics and choose the most suitable materials to reduce the impact of noise on our life and work.