In today's big cities, whether it is day or night, it is very embarrassing. If no soundproof cotton is installed in home improvement, it will feel very noisy. After installing soundproofing cotton, resting in the bedroom can also be protected from noise. However, there are still some people who may question the use of noise-absorbing cotton. What should we pay attention to when choosing noise-absorbing cotton? Is noise insulation useful? 1. Is sound insulation cotton useful? First of all, let's take a look at the material of sound insulation cotton. Currently, soundproof cotton in the market generally uses porous soundproof materials such as: centrifugal glass wool, polyester wool, cotton, mineral wool, rock wool Plant fiber spraying and so on. The soundproofing principle is that there are a large number of tiny interconnected pores inside the material, and the external acoustic wave can penetrate deeper into the material along these pores, thereby causing friction with the material and converting the acoustic energy into heat energy. 2. Is sound insulation cotton useful? Now let's take a look at the principle of soundproofing cotton. There are countless channels that are made up of tiny holes that are brocaded together. External sounds can enter these small gaps in the soundproofing cotton through these channels. And once outside sounds can't come out, because these passages are very long, outside sounds will be drilled in these passages, and they will collide. And in the process it will gradually consume energy, which will play a sound effect. 3. Is sound insulation cotton useful? The following Xiao Bian uses experimental results to tell everyone. Experiment 1: Multi-layer glass soundproofing: The glass wall is a double-layered structure. The song is played on a mobile phone indoors. The test is performed at an outdoor position of 20 cm. The test volume is 62.4 dB at high volume and 59.4 dB at low volume. Experiment 2: Sound-insulated cotton soundproof: In the market, a sound-proof cotton with a specification of 300 grams was purchased. The test results showed that the noise value was 57.9 decibels high and 48.3 decibels low, and the sound volume decreased significantly. What to pay attention to the purchase of soundproof cotton When choosing the soundproof cotton, we must know that the qualified and regular soundproof cotton products are fluffy materials, and there are a large number of small and medium holes that communicate with each other. These small holes have uniform distribution, strong aspect ratio, soft touch, and a smooth surface. In the purchase of soundproofing cotton, it is recommended to buy non-flammable or flame-retardant fire rating materials, such soundproofing cotton to fire standards, but also have a certain degree of environmental protection. Do not buy asbestos-insulated cotton in your home wear, because the fibers of asbestos are very fine and can easily inhale into the human body, causing harm to the human body. For example, it can cause lung diseases, lung calcification and other problems. And the impact of asbestos is not a short time, but it is such a long time as 10 or even 20 years. This article summarizes: soundproof cotton useful ? From the above soundproof cotton material, the principle of soundproof cotton and soundproof cotton experiment results show that sound insulation cotton soundproof effect is still very good, in the home with noise insulation cotton can play a role in insulating the outside noise . However, when installing soundproof cotton in homes, we must pay attention to the performance and quality of soundproofing cotton. China leading manufacturers and suppliers of Spray Wax Gun ,Woolwax Spray Gun, and we are specialize in Wax Oil Spray Gun,Cavity Wax Gun, etc. Spray Wax Gun ,Wax Spray Gun,Cavity Wax Gun NINGBO HENGHUA METAL SURFACE TREATMENT TECHNOLOGY CO.,LTD. , https://www.henghuametal.com
