Egg cotton sound-absorbing cotton is a kind of sponge material which has been specially treated to form concave-convex waves. Its interior is covered with tiny gaps and semi-open structure, which can absorb a lot of incident acoustic energy, attenuate sound waves, reduce the interference and reverberation of indoor reflected sound and improve the purity of sound. It is a high-performance product of sound-absorbing and noise-reducing materials.
Second, the sound absorption principle of egg cotton:
Sound and shadow sound-absorbing cotton has a large number of pores and bubbles, which are connected inside and outside. When sound waves are incident, it will cause air vibration in the gap. Due to the viscous resistance of air and the friction between air and hole wall, a considerable part of acoustic energy is converted into heat energy and consumed. In addition, when the air is adiabatic compressed, the heat exchange between the air and the hole wall will continue, and part of the acoustic energy will be converted into heat energy due to heat conduction.
Uses: Sponge is nontoxic, odorless, environmentally friendly and hygienic, and is an ideal indoor sound insulation/absorption and audio reflection material. Widely used in indoor decoration of recording studio, recording studio, audio-visual room, audio-visual room, drum room, KTV, sound measuring room, language room, broadcasting room, audition room, acoustic laboratory, conference hall, studio, theater and other occasions, as well as places and equipment such as machine room noise elimination, generator noise elimination and sound box.
Third, the egg sound-absorbing cotton product uses:
1. Sound absorption treatment for home decoration (recording studio, piano room, drum room, home theater, rehearsal room)
2. Eliminate reverberation in entertainment places and improve sound quality (KTV rooms, partitions, ceilings, etc.). )
3, office space to eliminate echo (light wall, partition, conference room, etc. )
4, industrial noise control (factory walls, roofs, equipment, doors, control room, etc. )
Four, egg sound-absorbing cotton installation method:
(1) Apply the glue evenly on the back and wall of the sound-absorbing cotton respectively until the glue is 80% dry, spread the sponge flat and gently press it.
(2) Ordinary glue: all-purpose glue and resin glue. You can buy it in ordinary hardware stores.
(3) Stick it to cotton or a wall with sticky double-sided adhesive tape, and then press and flatten it.