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1.Sound-absorbing materials: blankets, wool, cotton wool, sound-absorbing cotton, sound-absorbing cotton beads, sound-absorbing cotton sheets, rock wool, glass wool, glass felt, etc.
2.Sound insulation materials: wood sound insulation board, ceramic sound insulation board, glass fiber sound insulation board, aluminum alloy sound insulation board, rock wool sound insulation board, sound weaving, sound absorbing cotton wall, polyurethane foam, polystyrene board, polyurethane foam board, etc.
3.Noise reduction materials: polyurethane noise reduction pads, sound-absorbing cotton boards, foam noise reduction boards, imitation leather noise reduction boards, wood noise reduction boards, ceramic noise reduction boards, cotton felt noise reduction boards, aluminum alloy noise reduction boards, rock wool noise reduction boards, foam film noise reduction boards, etc.
Abstract] Sound insulation and noise reduction materials [Question] 1Sound-absorbing materials: blankets, wool, cotton wool, sound-absorbing cotton, sound-absorbing cotton beads, sound-absorbing cotton sheets, rock wool, glass wool, glass felt, etc.
2.Sound insulation materials: wood sound insulation panels, ceramic sound insulation panels, glass fiber...
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AsbestosIn fact, the harm does not come from toxicity, the material itself is not toxic, but from direct contact with the human body, as long as the sound insulation material is kept intact, it is completely usable and safe.
Soundproof cotton. Different from the soundproof board, although it is also a kind of soundproof material, but the main material of soundproof cotton is asbestos, asbestos itself is not toxic and formaldehyde, but one thing to note is that asbestos will have a certain degree of harm to the human body, because the fiber of asbestos is very small, easy to stick to the human body to cause disease.
The relevance is as follows. Therefore, the general construction personnel will do a good job of protective measures during construction. Asbestos itself is a dust hazard that can affect the respiratory system.
However, these phenomena are some adverse effects caused by direct contact between people and soundproof cotton, and in our daily lives, soundproof cotton will not be in direct contact with us, so there is no need to worry.
All in all, the sound insulation board and sound insulation cotton itself is not harmful, the material itself is not toxic, but from direct contact with the human body, in general, except for the construction personnel, we will not directly contact the sound insulation material, so it is safe to use. As long as you keep the room ventilated while decorating.
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**Lesion: Soundproof cotton.
The fibers are very fine, and it is easy to stick to the human fiber and penetrate into the disease, and then cause the disease. Respiratory tract.
Damage: Sound insulation cotton is a kind of harm to the human body caused by dust, which is easy to be inhaled into the body and attached to the human respiratory tract over time, which will lead to the respiratory system of the human body.
Damaged. <
**Lesion: The fiber of soundproof cotton is very fine, and it is easy to stick to the person's **, and then cause **lesion.
Respiratory tract damage: Noise insulation cotton is a kind of harm to the human body caused by dust, which is easy to be inhaled into the body and attached to the human respiratory tract over time, which will lead to damage to the respiratory immune system.
Soundproofing cotton is also a kind of soundproofing material, the material used in soundproofing cotton is mainly asbestos, itself is also non-toxic, generally the asbestos and other materials in the soundproof board are isolated from the outside world, as long as there is no direct contact, normal life is safe.
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The damage to the human body caused by the asbestos used in the soundproof cotton is classified as dust, which adheres to the respiratory system of the human body, which will cause damage to the respiratory immune system of the human body overnight, and eventually accumulate many asbestos particles in the lungs, causing pneumoconiosis.
Soundproof cotton can be applied in many places, many people will use soundproof cotton to achieve the purpose of sound insulation when decorating at home, but in fact, soundproof cotton is harmful to people's body, so let me tell you about the harm of soundproof cotton.
01 Principle of soundproof cotton.
Sound is produced by the vibration of the object Sound waves are transmitted in the air Cotton has a multi-fiber structure When sound waves pass through cotton, they are reflected, superimposed, and collided with each other by countless fibers, and the sound wave energy is converted into heat energy The sound wave intensity is weakened and the sound disappears.
02 The damage to the human body caused by the asbestos used in the soundproof cotton is classified as dust, which adheres to the respiratory system of the human body, which will cause damage to the respiratory immune system of the human body overnight, and eventually accumulate many asbestos particles in the lungs, causing pneumoconiosis.
03 Asbestos is very harmful to the human body, because its fiber is very fine, it is very simple to inhale, and it will directly cause lung diseases, lung calcification, and so on. And its influence is not short-lived, but generally accumulates over a long-term period of ten to twenty years.
04 Things to keep in mind.
When disassembling, we must pay attention to the disassembly skills, do not use brute force to damage the plate surface and paint layer, and use special buckle lifting tools for all buckles.
When disposing of attachments, be sure to pay attention to the strength and direction of force to avoid scratching the paint and scratching the panel. After applying the detergent, be sure to close the lid in time to prevent the detergent from volatilizing or knocking over the cleaning bottle.
When blanking, try to prevent excessive splicing and repeated blanking.
The wiring of the chassis and the air conditioning holes must not be concealed.
The flooring installation steps should be completed after the ceiling has been done to prevent soiling or damage to the seats and carpets. When operating a car with a safety airbag, it is necessary to pull out the key and disassemble it lightly to avoid damage to the vehicle caused by the explosion of the airbag.
The usual treatment is cavity sound insulation, which is mainly to fix the keel on the wall of the room, and then add a layer of sound insulation and sound-absorbing materials to fit with gypsum board. The cavity is filled with rock wool, and the soundproof material is attached to the inside of the gypsum board. Affix sound-absorbing panels to the outside of the plasterboard. >>>More
1.Sound-absorbing materials: blankets, wool, cotton wool, sound-absorbing cotton, sound-absorbing cotton beads, sound-absorbing cotton sheets, rock wool, glass wool, glass felt, etc. >>>More
As long as the material purchase is appropriate, the installation is scientific and reasonable, the sound insulation effect is still very good, and polyurethane foam is recommended as the sound insulation material, polyurethane foam is the main component of styrofoam. Cured polyurethane foam material can play a better role in sound insulation, sound absorption, and anti-corrosion, waterproof, and better polyurethane material has a flame retardant design, is a good choice of sound insulation materials.
Soundproofing, but a university asks. It's not just what people say, just lay out what you want, just put on something. There are many levels of sound insulation. It depends on what level you want to achieve, and it also depends on the amount of noise around you. >>>More
Glass wool belongs to a category in glass fibers and is a man-made inorganic fiber. Glass wool is a molten glass fiber, forming a cotton-like material, the chemical composition belongs to the glass class, is an inorganic fiberIt has good molding, small bulk density, thermal conductivity, thermal insulation, good sound absorption, corrosion resistance, and stable chemical properties. >>>More