Sound insulation cotton
Beichang Junkong Soundproof Cotton:
The sound-proof cotton material is light, flexible, durable, and has the functions of non-toxic, odorless, mildew-proof, flame-retardant and insulation. The highest sound absorption coefficient in the 125 ~ 4000HZ noise range is above 0.9, which is the best indoor sound insulation, sound absorption and energy saving material. This cotton is four times larger than the actual sound insulation area of ordinary flat sound-absorbing cotton. It is mainly used in acoustics, karaoke rooms, cinemas, conference rooms, target training rooms, offices, factory workshops, shopping malls, homes and other places with strict acoustic requirements.
100%聚脂纤维材质 ，防火处理后可达国家防火B1级，国家环保E1级，直接用在墙体或夹板内做填充材料，可满足专业声学场所的隔音要求。 1. 100% polyester fiber material , after fire treatment, it can reach national fire protection level B1 and national environmental protection E1 level. It can be directly used as filling material in the wall or plywood to meet the sound insulation requirements of professional acoustic places.
5公分厚 ，隔音系数高，中高低全频隔音，表面平整。 2, 5 cm thick , high sound insulation coefficient, medium and high full frequency sound insulation, flat surface. It is a substitute for traditional sound insulation filling materials such as rock wool and glass fiber.
3. Green and environmentally friendly, simple and convenient construction. It can be lightly adhered to the wall with hot-melt adhesive on all four sides, iron sheet or stuffed into the keel. Will not cause any harm to human body and skin.
常规规格0.9米*1.9米。 4. Various specifications can be made according to customer requirements, convenient and simple, outstanding personality, regular specifications 0.9 meters * 1.9 meters.
5.Scope of application: Suitable for opera houses, movie theaters, recording studios, recording studios, studios, audition rooms, business offices, television stations, radio stations, multifunctional halls, conference rooms, studios, concert halls, auditoriums, stadiums , Large entertainment cities, hotels, KTVs, high-end villas or homes, etc., which have stricter acoustic requirements.
(1) Compression permanent deformation 2% (GB / T10295-1988)
(Two) 45-degree angle combustion: flame-resistant grade (TB / T2402-1993)
(3) The noise reduction coefficient reaches 0.8 ~ 1.10 (GB 47-83)
(IV) The sound absorption coefficient reaches NRC = 0.76 (GB 47-83)
(V) Thermal conductivity 0.037 (GB / T10295-88)
(6) Hydrophobic rate: 98% (GB / T10299-1988)
(VII) Water vapor permeability index is 2.46 * 10-6g /