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There is, it is better than nothing, but it is not very useful, after all, NVH is a system engineering, and it has to be studied according to the model, not just paste the shock absorber and sound insulation cotton, however, the four-door shock absorber plate and sound insulation cotton have a great effect on the sound.
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If you install soundproofing cotton at home, the soundproofing effect is actually very good. Moreover, soundproof cotton is also a particularly common soundproof material, which can be made into wall panels, ceilings, and can also absorb a large amount of sound energy in the room. While reducing noise, you can feel the effect of soundproof cotton, which is actually not to be underestimated.
Moreover, some of the soundproofing cotton on the wall is basically made of fiber porous soundproofing materials, and the principle of soundproofing is that there are many tiny pores inside the material. When the external sound waves enter the material along these pores, they will rub against the material and convert all the sound energy into heat.
The principle of sound insulation and the sound insulation cotton is composed of many small holes, so that the sound of the outside world can enter these gaps of the sound insulation cotton through these holes, and the sound of the outside world cannot come out once it enters. Therefore, some energy will be consumed in this process, and it can achieve a good use effect while playing a sound insulation effect. And the sound of the soundproof cotton can reach more than 50 times after detection, and the average sound absorption coefficient is about about that, which is not only heat-resistant, but also ultraviolet-resistant.
There is no change in the temperature of the rain, and there is no degradation in performance.
The construction period is short, and when installing the soundproof cotton, the construction period will be shorter, and the work efficiency can be greatly improved. Not only can it save construction costs, but it can also save a lot of time. Moreover, the installation method of soundproof cotton is also very simple, and the maintenance is also very convenient.
While the weight is light, the mass per square meter is basically about 50 kg, which also reduces the load-bearing load of some walls.
At the same time, the most important point is that the fire protection effect of sound insulation cotton is particularly good, and the fire protection level is basically above A. In addition, it will not be affected in any way in the environment of dust or rain, and the phenomenon of water accumulation inside the component can be avoided.
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Upon inquiry. 1. The sound insulation effect of thermal insulation cotton is good, this material can not only play a sound insulation effect, but also have a heat insulation effect, especially suitable for hotels, KTV and other entertainment places. 2. In addition, insulation cotton can also be used in automobile engines, which can effectively avoid the high temperature of the engine from directly transmitting to the hood, so as to protect the paint on the surface of the hood, and at the same time avoid the fog of the hood affecting the line of sight in rainy days.
3. The sound absorption effect of thermal insulation cotton depends on the density of thermal insulation cotton in the unit area, the greater the density, the better the sound absorption effect. And good insulation cotton should have low moisture absorption, after many insulation materials absorb water, the insulation effect will be significantly reduced, because water has a higher thermal conductivity.
Hope mine is helpful to you.
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It depends on what you need sound insulation, there are many types of sound insulation cotton, and the types used in each place will be different, and the effect will be better if you use it correctly.
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The so-called soundproofing cotton is made of fiber-porous soundproofing materials, which can effectively isolate outdoor noise.
Its sound insulation principle is actually because there are a large number of tiny connected pores inside the material, and the external sound waves will penetrate deep into the interior of the material along the pores, so that there will be a certain friction with the material, so that the sound energy can be converted into heat energy. Once the outside sound enters, it cannot come out, so the energy will be gradually consumed in the process, thus playing a sound insulation effect.
1. The sound insulation is relatively large: the sound insulation effect is good, and it can reach more than 50 decibels after testing.
2. High sound absorption coefficient: the average sound absorption coefficient of soundproof cotton can be reached.
3. Weather resistance and durability: Soundproof cotton has many characteristics of heat resistance and ultraviolet resistance, and will not cause problems that reduce its performance due to the temperature change of rainwater.
4. Economical sound insulation board: the construction period is relatively short, which can improve the efficiency of the work, so as to save the cost of construction.
5. Convenient sound insulation panel: the installation will be very simple, and the maintenance will be more convenient.
6. The sound insulation board is light: the weight is very light, the mass per square meter is about 50 kg, which can well reduce the load-bearing load of the elevated light rail and the elevated road.
7. Fire protection of sound insulation board: the fire prevention effect is very good, and its fire rating can reach Class A.
8. Waterproof and dustproof: It will not be affected in any way in the environment of dust or rain, and can also avoid water accumulation inside its components.
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Hazards of soundproof cotton:The damage to the human body caused by the asbestos of soundproof cotton is classified as dust, which will attach to the human respiratory system.
, causes the person's respiratory immune system.
After all, many asbestos particles accumulate in the lungs, causing pneumoconiosis.
Asbestos is very harmful to the human body, because its fibers are very fine and easy to inhale, which directly causes lung diseases, lung calcifications and the like. And its influence is not short-lived, it usually accumulates over the course of 10-20 years.
Precautions when purchasing soundproof cotton.
1. When purchasing soundproof cotton, you should know that qualified and regular soundproof cotton products are fluffy materials, and there are a large number of small holes that are connected inside and outside, and these small holes are evenly distributed.
Strong vertical and horizontal ability, soft touch and smooth surface.
2. When purchasing soundproof cotton, it is recommended to buy non-combustible or flame-retardant fireproof materials, which meet the fire protection standards and have certain environmental protection functions.
3. In home decoration, do not buy asbestos soundproof cotton, because the fiber of asbestos is very fine, which is easy to inhale into the human body and will cause harm to the human body.
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The sound insulation effect of sound insulation cotton is very good.
The most common way to insulate sewer pipes is to wrap them around the outer walls of sewer pipes. That is, before the decoration, the sewer pipe is wrapped, and the material used is also soundproof cotton. After the parcel is completed, the sewer pipe is wrapped.
After the installation of soundproof cotton, everyone found that the sound of drainage from the sewer pipe was very small. Therefore, the sound insulation treatment of the sewer pipe in the home decoration is indeed effective.
The most common soundproofing treatment for walls is the installation of soundproofing cotton. At present, the more common is what we call soft pack, in fact, soft bag is essentially the use of soundproof cotton.
Hazards of soundproof cotton:
The hazards of soundproof cotton may cause ** lesions, or may have an impact on the digestive system and respiratory system. Soundproof cotton may be adsorbed on the **, enter the inside of the **, and may invade the deep layer of the **, causing undesirable **lesions.
Soundproof cotton may enter the intestine and cause certain effects on the digestive system, such as adsorbed in the gastric mucosa or intestinal mucosa, resulting in the function of the stomach and intestines being affected.
Soundproof cotton is relatively small, and may enter the lungs through the mouth to cause lung diseases, such as lung calcification, usually there are no obvious symptoms, and the incubation period is relatively long, but if it can be avoided from entering the lungs, it will cause adverse reaction symptoms.
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