What material is good for room sound insulation? What are the indoor sound insulation materials?

Noise, this discordant sound, is particularly annoying to us. Noisy streets, car horns, industrial noise and so on are a lot of noise pollution. Noise pollution has become a very common environmental problem. We can't cut off the source of infection, we can only work hard on the route of transmission. At home, we need a quiet environment. You can consider decorating the room with sound-proof materials, so that you can be less polluted by noise and create a quiet atmosphere for yourself. So, what are the room sound insulation materials? What should I use? Let's introduce the room sound insulation materials.

Overview of room sound insulation materials

There are many kinds of room sound insulation materials in the market, and the sound insulation effect of the room is closely related to the quality of the room sound insulation materials. So what are the indoor sound insulation? In daily life, people are familiar with solid bricks, reinforced concrete walls, wood blocks, gypsum boards, iron plates, sound insulation blankets, fiberboards and so on. There is no difference between good and bad sound insulation materials, only the suitability and effect. The so-called sound insulation material refers to the material that can isolate, partition and separate sound or noise from vibration sound. This material is called sound insulation material. Because many people live in places with a certain degree of noise, which affects their normal lives, it is necessary to have sound insulation materials to maintain people's normal lives. The sound insulation capacity follows the principle of quality law, that is, the greater the unit dense area density of sound insulation materials, the greater the sound insulation capacity, and the area density is directly proportional to the sound insulation capacity. The sound insulation material has physical elasticity, and when sound waves are incident, it will stimulate vibration to spread in the interlayer. When the sound wave is not incident vertically, but at an angle θ with the interlayer, the wave front of the sound wave reaches the interlayer surface in turn, and the sound wave that reaches the interlayer first excites the bending vibration wave in the interlayer to propagate laterally along the interlayer. If the propagation speed of bending wave is consistent with the propagation speed of sound wave gradually reaching the surface of interlayer in air, sound wave will strengthen the vibration of bending wave, which is called coincidence effect. At this time, the amplitude of bending wave vibration is particularly large, and the energy of radiating sound waves to the air on the other side is also particularly large, thus reducing the sound insulation effect.

Types of room sound insulation materials

There are many kinds of sound insulation materials, and the common ones are: building sound insulation materials, KTV sound insulation materials, decoration sound insulation materials, sound insulation materials, shock absorption materials, sound absorption decorative materials, decorative sound absorption cotton boards, sound insulation boards, sound insulation and fire prevention materials, etc. Common specifications and thicknesses: 2.0mm sound insulation material, 4.0mm sound insulation material, 1.2 sound insulation material, etc. The following are some good sound insulation materials:

1, polyester fiber sound-absorbing board

It is an ideal indoor sound insulation material. Its raw materials? 100%? The polyester fiber has the advantages of sound absorption, environmental protection, flame retardancy, heat insulation, heat preservation, moisture prevention, mildew prevention, easy dust removal, easy cutting, easy embedding, simple construction, good stability, good impact resistance, good independence and high cost performance. There are many colors to choose from, which can meet different styles and levels of sound absorption? Decoration demand. Mainly used 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 and so on. KTV？ Private rooms, bars, industrial plants, computer rooms, family noise reduction and other places with high requirements for acoustic environment and high-grade decoration.

2. Sound insulation felt

Sound insulation felt is a good room sound insulation material on the market at present. Mainly used with gypsum board, it is used for wall sound insulation and ceiling sound insulation, as well as for sound insulation and damping vibration reduction of pipelines and mechanical equipment. The sound insulation felt is not felt, but the appearance is completely different. The felt is light and soft, and the soundproof felt is thin but heavy.

The soundproof felt is made of tasteless EPDM and more than a dozen organic minerals in a certain proportion. This product is black, environmentally friendly and tasteless. It is a good sound insulation material for low-frequency and high-frequency sounds, and can effectively suppress the spread of various vibrations. The thickness of this material varies from 1mm, 2mm and 3 mm. After testing by the National Building Materials Bureau, the weighted sound insulation Rw is 23dB, 27dB and 30dB respectively, and the material is also very flexible.

Sound insulation felt has the following advantages:

1. The material is light and thin;

2. Soft and high tensile strength;

3. Environmental protection, no environmental pollution;

4. Suppress the propagation of low-frequency sound waves; Excellent flame retardant performance;

5. The construction is convenient.

3. Wave peak sound absorption sponge

The indoor sound insulation material of peak sound absorption sponge is a kind of concave-convex wavy sponge formed by special treatment of equipment. Its interior is full of tiny gaps and semi-open structure, which can absorb a large amount of injected acoustic energy, attenuate sound waves, reduce the interference and echo of indoor reflected sound, and improve the purity of sound. Performance features mainly include:

1, high sound absorption rate

2, good thermal insulation

3. Flammable grade? B 1 grade

4. Compact structure and stable shape.

5, light weight, safe and convenient construction.

6, harmless to the human body, pollution-free and odorless to the environment.

7. It is waterproof. After soaking in water, it is strong in contact with water, its sound absorption performance is not reduced, and its shape remains unchanged.

8, can be used twice, easy to destroy, no secondary pollution to the environment.

The above is the introduction of room sound insulation materials. When choosing room sound insulation materials, it is best to choose the one suitable for your family in combination with the environmental location, so that creating a comfortable environment is more conducive to life and creating a good sleeping environment for your family. Everyone should consider the noise factor when decorating. Noise is an invisible killer, which destroys our physical and mental health invisibly, so it is really necessary to say that sound insulation is sometimes necessary.