Acoustic cotton material

Yellow fiber composite acoustic cotton  
MG64-30T / MG48-50T

fire resistance  :
The fire test results meet the requirements of GB8624-2006 Class A

Key Features :
Acoustic glass wool belongs to a category of glass fiber cotton, which is an artificial inorganic fiber.Quartz sand, limestone, dolomite and other natural ore as the main raw materials, with some alkali, borax and other chemical raw materials melted into glass.In the melting state, flocculated fine fibers are flocculated with the help of external force, and the fibers and fibers are three-dimensional cross, intertwined with each other, showing many small gaps.These gaps can be seen as pores.Therefore, glass wool can be regarded as a porous material with good sound insulation and sound absorption properties.

internal structure  :
Acoustic glass wool is a typical porous sound-absorbing material with a good sound-absorbing properties, with a large number of tiny pores and fluffy interlaced fibers.Glass wool can be made into wall panels, ceilings, spatial sound absorbers, etc., which can absorb a lot of sound energy in the room, reduce reverberation time and reduce indoor noise.

Scope of application  :
sound absorption cavity filling

Color selection   :    Yellow 

Specifications    :   MG64-30T 1200*600*30mm
                                 MG48-50T 1200*600*50mm 

Density    :    MG64-30T 64kg/m³
                       MG48-50T 48kg/m³ 

Size of Leaflet   :    MG64-30T 0.72/㎡
                                 MG48-50T 0.72/㎡ 

    Packing Quantity & Packing Weight    :    MG64-30T 35pcs & 53.2kg
                                                                             MG48-50T   20pcs  &  42.3kg 

    Packing size    :    MG64-30T 1220*630*1040mm
                                   MG48-50T 1220*630*1040mm

Features    :

Acoustic glass wool's sound absorption characteristics are not only related to thickness and capacity, but also to factors such as cover materials and structural structure.In construction applications also need to take into account cost, beauty, fire prevention, moisture, dust, aging resistance and other aspects of the problem.Glass wool plate belongs to porous sound absorption material and has good sound absorption performance.The reason why glass wool can absorb sound is not because of the rough surface.It is because of the large number of small pores and holes that are connected internally and externally.
With the increase in thickness, the sound absorption coefficient of medium and low frequencies increases significantly, but the high frequency changes little (high frequency absorption is always large).
2, the thickness does not change, the volume increases, the low and medium frequency sound absorption coefficient also increases; but when the volume increases to a certain extent, the material becomes dense, the flow resistance is greater than the optimum flow resistance.The sound absorption performance of glass wool is also closely related to the installation conditions.When there is an air layer behind the glass cotton plate, the sound absorption effect is not similar to that of the glass cotton plate without an air layer of the same thickness.In particular, the sound absorption performance of medium and low frequency will be greatly improved than that of the material on the hard bottom surface, and the sound absorption coefficient will increase with the thickness of the air layer.The use of different capacities of glass cotton stacked together to form a gradually increasing capacity form, can obtain a greater sound absorption effect.

   Sound absorption coefficient   :  

   Flame retardant performance