Acoustic laboratory or studio sound absorbing new material - melamine foam

Acoustic laboratory or studio sound absorbing new material - melamine foam

Melamine foam (melamine foam) melamine foam is a new type of melamine foam with a high open porosity three-dimensional grid structure. Its high sound absorption and fire safety make it suitable for acoustic testing, such as low-reflection laboratories, engine test stands, wind tunnels and recording studios. Combined with a melamine sound-absorbing sponge cover, the low-frequency sound-absorbing membrane (MA) developed by Fraunhofer-Institut für Bauphysik (Franhofer Institute of Building Physics, IBP can replace medium-frequency and high-frequency sound-absorbing materials. Space-saving, compact structure and surface smoothing ensure sound flow smooth.

BP has also developed a Synthetic Sheet Resonator (CSR) that replaces the low frequency sound absorbing membrane (MA) of the acoustic low frequency resonance box as an improved sheet resonator. A low-frequency resonance box can be constructed by covering a 0.5 mm thick melamine sound-absorbing sponge sheet on a 0.5 to 2.5 mm thick steel sheet. However, the acoustic open edge of a unit measuring 1 x 1.5 meters also absorbs intermediate and high frequencies. This Synthetic Sheet Resonator (CSR) is ideal for adjusting sound effects in schools and homes, offices and conference rooms. Because of its smooth surface, it is easy to cover the decorative surface layer for the composite sheet resonator. The versatility offered in the form of a blackboard or whiteboard has particular advantages. Placing a 15 cm thick melamine sound absorbing sponge plate in front of a 10 cm thick resonator (CSR) produces a 25 cm thick compact broadband sound absorber (CBA) that is in the frequency range above 30 Hz, even at equivalent Free sound field conditions can be maintained in small rooms.

In addition to excellent sound absorption properties, melamine foam has a broad development prospect in the building acoustics industry due to its high heat insulation, high fire safety, hygienic safety and light weight. Melamine foam is also a natural fireproof material. In all fire tests conducted so far, melamine has reliably met the requirements of maximum flame propagation speed. After contact with open flame, a dense coke layer is formed on the surface of the combustion body to block. Combustion, no dripping, non-toxic gas release, smoke density <15, self-extinguishing from fire.

In order to improve the noise reduction effect in the building, indoor ceilings, ceilings, indoor partitions, and soft-clad walls can be made of melamine foam and gypsum board, metal sheets, fabrics or other materials. Acoustic and noise control products made from melamine foam provide effective sound solutions for almost any environment, including offices, schools, hospitals, shopping malls, restaurants, recording studios, pavilions, theaters, stadiums, and more.