Which effect is better, soundproof felt or soundproof cotton? When we are recuperating, if there is a little noise, it will make people feel uncomfortable, so the sound insulation design is very important. If the sound insulation effect is good, we can not only have a good sleep. Which effect is better to share sound insulation felt or sound insulation cotton?
Which effect is better, soundproof felt or soundproof cotton? 1 1. Which effect is better, soundproof felt or soundproof cotton?
1, sound insulation felt
(1), the sound insulation felt material is similar to coiled material, and the main material is rubber. It is more convenient to lay.
(2) The sound insulation felt material occupies a small space and can be directly attached to the wall or floor.
(3) The sound insulation felt has certain flexibility. Moreover, the sound insulation felt itself is relatively dense and thick, which is not easy to cause noise. In addition, the attraction of sound insulation felt also has a certain effect on shock absorption.
(4) There are many sound insulation felt materials in the market, and there are also many unqualified and inferior products. Inferior sound insulation felt not only can not achieve sound insulation effect, but also has poor flexibility and is easy to break.
(5) The price of sound insulation felt is relatively expensive, and the price of a slightly better sound insulation felt on the market is around 60. There are about twenty or thirty kinds of flat sound insulation blankets on the market, but the sound insulation effect is very poor.
2, soundproof cotton
(1), sound insulation cotton is similar to sponge material. When using soundproof cotton, stick it on the building. Laying is also more convenient.
(2) The sound insulation cotton is fluffy and takes up a little more space.
(3) The sound insulation effect of sound insulation cotton material is better, which is 2-3 times higher than other sound insulation materials on the market.
(4) Sound-proof cotton material belongs to environmental protection material. There is no harmful gas.
(5) Sound-proof cotton has better functions of keeping warm and preventing fire.
(6) Sound insulation cotton has good heat insulation effect.
(7) The price of sound-proof cotton materials on the market is different, ranging from 60 to 80.
2. What's the difference between sound-insulating cotton and sound-absorbing cotton?
Sound insulation cotton directly blocks the outdoor sound, which is also a sound insulation material, and the sound insulation cotton converts the outdoor sound into heat energy. The main purpose of using these two materials is to isolate the external sound, so the sound insulation cotton can also be regarded as a kind of sound insulation cotton. The correct installation method of sound insulation cotton should be to put the sound insulation cotton in the keel and cover it with a cover plate. Of course, it can also be directly attached to the glass, but this sound insulation effect is not as strong as that in the keel, and it is not beautiful.
Nowadays, people use more fiberglass at home or in the office. The color is yellow, and the price is relatively cheap. 20 yuan has a roll around. If it is used in a professional recording studio or studio, professional acoustic insulation cotton is generally used. This kind of soundproof cotton is very expensive, ranging from hundreds to thousands of meters.
Which effect is better, soundproof felt or soundproof cotton? 2 The materials with good floor sound insulation effect are:
1, poly-Mao sound insulation material
Good sound insulation effect, high density, good sound insulation effect, and better sound insulation effect if combined with other sound insulation diffusion materials. Durable sound insulation felt has the functions of anti-aging, corrosion resistance and moisture resistance. The overall cost is relatively low, and the sound insulation is large, which is deeply loved by consumers. Meet the requirements of environmental protection E 1 level and fire code, and the fire protection level reaches A 1 level.
2, soundproof cotton
Sound insulation cotton adopts advanced and unique patented technology to keep warm and sound insulation for partitions or partitions. It is widely used and will not solidify, shrink or collapse even in ordinary building applications. Sound insulation cotton has a strong sound absorption function; Can keep warm, the house is not so hot in summer; Light and thick; Non-toxic and harmless, without any adverse effects. Good sound insulation effect and favorable price.
3. Sound insulation felt
Sound insulation felt is a kind of flexible high-density coiled material made of elastic materials such as rubber and plastic, which is mainly used for matching with gypsum board, for sound insulation of walls and ceilings, and also for sound insulation and damping of pipelines and mechanical equipment.
Generally speaking, the scope of application of sound insulation felt can be as long as it is used for sound insulation measures. For example, soundproof felt and gypsum board can be used as soundproof walls, and soundproof felt can also be used as ceiling soundproof. It is also used for sound insulation and damping vibration reduction of pipelines and mechanical equipment. Therefore, there is no doubt about the sound insulation effect of the sound insulation felt.
Which effect is better, soundproof felt or soundproof cotton? First of all, sound-insulating cotton and sound-absorbing cotton are not the same concept. Many times, sound-absorbing materials are often mistaken for sound-absorbing materials, but the materials themselves can only play the role of noise reduction and can not play a good sound insulation effect, so they are called sound-absorbing materials acoustically, such as glass wool, rock wool, mineral wool and so on.
Secondly, generally speaking, if we want to sound insulation when dealing with the ceiling, we must follow the procedure of acoustic treatment, that is, sound absorption and sound insulation. Regarding the sound insulation of the ground, it depends on what materials are used in our ground, and different materials have different treatment methods. However, in order to achieve the ideal sound insulation effect, the floating structure floor is generally used, and then the sound insulation and shock absorption materials are laid, so that the sound insulation effect will be better.
Sound-absorbing cotton has a good sound attenuation effect, that is, it can convert sound energy into heat energy. Sound insulation materials can indeed block the sound from continuing to spread, but it is also easy to cause the reflection of acoustic energy. Our main purpose is to eliminate noise, such as "tonsure sound-absorbing cotton", which is a porous material with layered step density. All the holes inside are connected, and once the sound enters, it will rub against the hole wall of the material, and the energy will be converted to achieve the effect of silencing.
What is the sound insulation effect of the sound insulation felt?
Advantages:
1, which has a certain sound insulation effect.
Acoustic blanket, as its name implies, is mainly used to isolate noise. The average sound insulation capacity of sound insulation felt is 20dB, which is mainly good for medium and high frequency sound insulation. Why can such a thin layer of sound insulation blanket block noise? This is mainly because of two structural principles, on the one hand, its damping characteristics, on the other hand, its newly improved sealing performance, which makes it very popular in low-noise buildings!
2, the application range is wide, and the construction is simple.
Acoustic blankets are widely used in homes, entertainment, offices and industrial places. Mainly used with gypsum board. It can be used not only as wallboard, but also as ceiling. In this way, whether listening to music at home or chatting loudly with neighbors will not affect each other!
If you often exercise at home or listen to music and watch TV, you'd better use soundproof blankets on the walls, ceilings and floors at home, and be well armed in all directions!
3. It has the function of shock absorption
The sound insulation felt has certain flexibility, and when it is used with gypsum board, it has certain shock absorption effect to a certain extent. For example, the shockproof board in auto parts is actually a kind of sound insulation felt! The way to stop the vibration of the sound insulation felt is to attenuate the vibration by isolating the sound vibration. The sound insulation felt itself is dense and thick, which is not easy to cause * * * sound. Coupled with the attractive effect of sound insulation felt, it also has a certain effect on shock absorption!
Disadvantages:
1, it is easy to buy fake and shoddy products. The market of sound insulation materials is mixed, and it is easy to buy inferior products. Inferior sound insulation felt not only can not achieve sound insulation effect, but also has poor toughness and is easy to break. Most importantly, mixing too many recycled raw materials and harmful additives is not only not environmentally friendly, but also harmful to human body!
2, the price is expensive. High-quality sound insulation felt is very expensive, but the sound insulation felt bought on the market at present is not up to the environmental protection standard. Chemical additives harmful to human body, such as plasticizers, may be added in the production process, which cannot be degraded naturally, and combustion will produce toxic smoke. And the cheapest imported soundproof felt is 67 1 square meter, and the better one is more than 300 square meters, which shows the high price!
Quality identification of sound insulation felt
1, smell it
Now consumers' awareness of environmental protection is getting higher and higher, and the requirements for environmental protection of materials used in decoration are getting higher and higher. As a sound insulation material, you should smell whether there is a pungent smell (such as strong rubber smell) after you get it. If so, I suggest you think twice before you act. Most of these pungent noise blankets are not environmentally friendly!
Step 2 look at the density
Of course, if you have an electronic scale, you can weigh them and compare their densities. However, the same density of sound insulation felt will also have advantages and disadvantages. Because copper powder, iron powder, lead powder and a series of metal powders. It is added to the main material of sound insulation felt, in which lead powder is toxic and copper powder is expensive, so ultrafine iron powder is generally used.
Consumers can cut the soundproof felt with wallpaper knife and look at the cross section in the sun. If you can clearly see the shiny iron powder particles, it means that it is a high-quality high-density sound insulation felt. Generally, the maximum density of sound insulation felt in China can reach 4.8kg/㎡(2 mm thick).
Step 3 Pull and Fold
As a damping sound insulation material, sound insulation felt has sound insulation ability not only in density, but also in elasticity and toughness. Because the sound insulation felt is generally used with gypsum board, cement pressure board and other boards, the damping performance of the sound insulation felt itself can reduce the vibration of the board caused by sound waves, thus achieving the effect of sound insulation and shock absorption.
First of all, after getting the sound insulation felt, consumers can cut it into small strips with wallpaper knife and pull it hard with both hands. If relaxed, it can be restored to its original state, indicating that it is a high-quality sound insulation felt.
Secondly, consumers can fold the soundproof felt in half and press it hard. After loosening, it is as smooth as new, without any cracks and deformation, indicating that the sound insulation felt is of good quality. If it breaks after being folded in half, it means that it is a poor quality sound insulation blanket.
Finally, consumers can test the tear strength of the sound insulation felt. Without borrowing tools, tear the sound insulation felt with both hands. If it is easy to tear a hole in the sound insulation blanket, it means that the tear strength of the sound insulation blanket is not high and it is inferior. Instead, it is a high-quality soundproof felt.
Which effect is better, soundproof felt or soundproof cotton? What's the difference between sound insulation cotton and sound insulation board?
1, the noise reduction principle is different.
Noise and sound waves absorbed by sound insulation cotton can reduce noise by rubbing against countless holes in the material; The sound insulation board can reduce vibration to a certain extent by reducing the penetration of noise and sound waves.
Acoustic board is a kind of high-density sound insulation material. Using it can effectively organize some noise to radiate outward, and its biggest feature is that its sound insulation ability can reach 30 decibels.
2. Different installation and use environments
When we use sound insulation board and sound insulation cotton in noise control, we need to choose suitable sound insulation and sound absorption materials according to different situations and noise reduction requirements.
3. Different silencing effects
Sound-insulating cotton has the function of noise reduction, and sound-absorbing materials can repeatedly consume absorbed sound waves inside, and convert sound energy into heat energy to consume noise, thus achieving the purpose of noise reduction.
As the name implies, the sound insulation board is mainly based on sound insulation, emphasizing certain rigor, isolating all external noises and ensuring the tranquility of the indoor environment. Acoustic panels are generally used in places with very high environmental requirements in room acoustics. Sound insulation materials such as sound insulation boards can block the propagation of noise sound waves, and the noise control effect of blocking the propagation path is very poor.