With the improvement of people's living standards, people have higher and higher requirements on the acoustic environment around them, so many projects will use sound absorbing materials . Sound absorbing materials are the primary technical means for building acoustics and noise control, and their uses are very wide. In the building materials market, we can see various styles and sound-absorbing materials with different performance. There are many types of sound-absorbing materials, how to choose the sound-absorbing materials suitable for your use? Let's take a look at what are the sound-absorbing materials and how to choose them!
What are the sound-absorbing materials
1. Hemp fleece: Hemp fleece is a relatively cheap sound-absorbing material. Although it has sound-absorbing effect, it is poor in fireproof and moisture-proof.
2. Petroleum fiber cotton: The sound absorption effect of this material is relatively poor, it is not easy to absorb high-frequency noise, and it melts in case of fire.
3. Sponge: This sound-absorbing material is more commonly used in recording studios, and it is easy to absorb dust and has no flame retardancy.
4. Rubber plate: The sound absorption effect is very good, but the material itself is heavy, so it is a little difficult to construct.
5. Aluminum silicate cotton: fire-resistant, not easy to absorb high-frequency noise, and has no water absorption, no dirt resistance, and poor environmental protection.
6. Industrial felt: It is fire-proof and anti-corrosive, and the market price is relatively cheap. It is not suitable for indoor use in homes, but only for car floor and ceiling.
7. Modified sponge: Modified sponge is an improved sponge material. Although this material has improved water absorption performance, it has weakened its sound insulation and other functions.
8. Industrial rubber and plastic board: sound absorption, sound insulation and shock absorption are strong, and the price is cheap. It is often used in the thermal insulation equipment and air conditioning industry in the construction industry. But the lack of beauty is that the material has an odor, so it is not suitable for indoor use.
9. Asphalt board: Asphalt board not only has good sound absorption effect and low price, but also has the effects of waterproof and shock absorption. Of course, it also has some shortcomings. Asphalt board is not flame retardant, self-important, polluted, and less environmentally friendly.
10. Sound insulation felt: moisture-proof, moth-proof, flame-retardant, and sound insulation is also good, but the material has no sound absorption effect.
Selection of sound-absorbing materials
1. First, the sound absorption performance should meet the requirements of use. If you want to reduce the mid-high frequency noise or reduce the mid-high frequency reverberation time, you should choose materials with higher mid-high frequency sound absorption coefficient.
2. The sound absorption coefficient is not affected by the environment and time. The sound absorption performance of the material should be stable and reliable for a long time.
3. Waterproof, moistureproof, mothproof, anticorrosive, mildewproof and antibacterial, which is very important for use under humid environment. Such as swimming pools, underground works and wet areas.
4. The fireproof performance is good, and it should be flame retardant, flame retardant or nonflammable. Non-combustible materials should be used in public places such as movie theaters and subway projects.
5. The sound-absorbing material must have a certain mechanical strength, so that it is not easy to damage during handling, installation and use. Durable and not aging.
6. The material has good machinability. Lightweight, easy to process, install, repair and exchange. For large and thin roof structures with increased spans, the weight of the sound-absorbing ceiling is a crucial constraint.
7. Sound-absorbing materials and their products will not scatter dust, volatile harmful gases, radiation harmful substances and damage human health during construction, installation and use.
Edit Summary: What about the sound-absorbing material selection and sound-absorbing material on the introduction here, you can feel the sound-absorbing material required under the circumstances, we hope the above to be helpful. If you want to know the related acquaintances, you can pay attention to the information on this website, please stay tuned for more exciting!
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