Microporous insulation is silica based material in the form of compacted powder or fibers with an average interconnecting pore size comparable to or below the mean free path of air molecules at standard atmospheric pressure. Microporous insulation may contain opacifiers to reduce the amount of radiant heat transmitted. This composition results in a material with exceptionally low thermal conductivity (lower than dormant air). Each board is individually encapsulated in polyethylene foil to make it resistant to moisture. It is also available in a flexible form with or without cloth encapsulation.
Microporous
High Temperature Insulation is based on separation technology. This involves small particles of dispersed silica creating micro-pores with diameters of less than 2nm (nanometres). The resulting sheets combine a porous structure with a low density, reducing their heat conductivity.
Microporous high temperature insulation blocks these three modes of heat transfer: conduction, convection and radiation.
Ecotherm microporous makeup minimises contact between molecules, reducing energy transfer from one molecule to another, and therefore reducing heat transfer due to conduction. There is also less convective heat transfer, as Ecotherm microporous structure creates trapped air pockets that are smaller than the free pathway of air, which would normally transmit heat through the material. Finally, this insulation also incorporates infrared opacifiers, which will reduce the amount of heat transfer from radiation.
Heat conduction:Nano ball points contact makes heat conduction reach extremely low value.
Heat convection:The pores size is smaller than the free path length of the gas.
Heat radiation:The opacifiers cause the infrared radiation to be limited.
Non-combustible/Non-poisonous/Recyclable
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Microporous materials from Vactherm offer great benefits and are the ideal combination of thermal insulation and Fire Protection
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Amorphous silicon Nano Porous Insulation Board
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