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Product name four | |
Sound-absorbing ceiling is a new type of inorganic composite building decoration material made of gypsum, without any harmful substances and public hazard gases, and is an environmentally friendly green material. Plate c |
Sound-absorbing smallpox is a new type of inorganic composite building decoration material made of gypsum, without any harmful substances and public hazard gases, and is an environmentally friendly green material. Plate can have good breathability in the process of air humidity change, which can regulate humidity to a certain extent, but will not produce water droplets attached to the surface of the plate. It is used in a 95% relative humidity environment. The degree of deformation is less than 2mm. It does not age and weathering for long-term use. It does not deform for ten years and does not mildew. The average fracture load is 300N. The plate back printing adopts a grid structure. The anti-deformation coefficient is much higher than that of the stripe back printing. New lightweight and high-strength plate, 6-8KG per square meter.
The perforations are closely arranged, and the perforation rate is between 3.8% and 30%. The frequency of sound absorption is generally between 100; 500Hz, the sound absorption coefficient is between 0.75; 0.80, and most of the thickness is 17mm.
Sound-absorbing smallpox forms a damping system with the material cavity filled at the rear. The energy of the sound can be gradually attenuated through this system, so as to achieve the effect of sound absorption and noise reduction. The perforation rate of sound-absorbing smallpox (from low perforation rate of 3.8% to up to 30%) can be applied to absorb various frequency bands of noise, perforation diameter and the diversity of the depth volume of the rear cavity, so that it allows users to; adapt to local conditions;, according to the frequency of different spatial sounds to choose different styles of sound-absorbing boards.