Glass wool is not only a heat preservation material, or a kind of acoustic material, in general, its use can be summarized as "heat preservation and heat insulation, sound absorption and sound insulation" these eight words. The thermal insulation of glass wool is a well-known performance of the industry. It is a representative thermal insulation material, and the thermal conductivity is low, and the use time can be up to 20 years; Glass wool "sound absorption and sound insulation" performance is also known to the industry, can be used for KTV, opera house, concert hall, stadium sound absorption and sound insulation, to achieve sound absorption and noise reduction effect.
What are the properties and characteristics of glass wool materials? As has been roughly mentioned, glass wool can be used for "heat insulation, sound absorption and noise reduction" in buildings or other fields. Heat preservation and insulation, simply put, is "material with resistance to heat flow", which can prevent the loss of "cold and heat source". For example, the transmission pipe of air conditioning (generally metal) needs heat preservation. Metal thermal conductivity is good, and the outside heat is easy to "enter" metal pipe, resulting in cold air not cold. At this time, you can use glass wool insulation materials for "thermal insulation", isolated from the outside of the "heat", the common application is the heat preservation of air conditioning duct and the internal and external walls of the building. It is also necessary to add that the thermal conductivity is the main index to measure the performance of thermal insulation materials. The smaller the thermal conductivity is, the better the thermal insulation performance is. The lighter the bulk density of general thermal insulation materials, the smaller the thermal conductivity is.
Glass wool is a kind of inorganic fiber materials, is a kind of porous structure of the material, the small holes can cut off, stop the sound through the material, or voice through pore into glass wool, glass wool fiber through "vibration and friction" is the sound energy consumption by around 80%, so as to achieve sound-absorbing insulation, deadened the noise reduction effect. The common use is to use glass wool as filling material, wall with sound insulation board or felt, or is made of space sound absorption body, sound absorption board as indoor acoustic design materials.
In general, glass wool can be used for most of the thermal insulation and sound absorption, sound insulation, noise reduction scene.