Thermal insulation products with regular shape made of expanded vermiculite with binder
Vermiculite brickExpanded vermiculiteIt is a thermal insulation product with regular shape made of raw materials and adhesive.There are cement expanded vermiculite products, water glass expanded vermiculite products and asphalt expanded vermiculite products.
The density of vermiculite brick is 0.4 ～ 0.5g/cm3, the thermal conductivity at room temperature is 293 ～ 502.4J/(m · h · ℃) 70 ～ 120cal/(m · h · ℃), the compressive strength is less than 0.5MPa, and the water absorption is about 6%.
Causes
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GranularExpanded vermiculiteIt is added to a proper amount of high-strength binder, formed by light pressing, dried or baked.The thermal conductivity of the binder is usually higher than that of the expanded vermiculite, so the addition of the binder makes the expanded vermiculite have a new use, but also reduces the thermal insulation effect of the expanded vermiculite.
Product use
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Vermiculite brick is a thin-walled hollow structure product with low strength and melting point. Its fire resistance and high temperature performance are lower than those of other light refractory materials. It is not suitable for load bearing parts or medium high temperature insulation materials. Its use temperature is 800~900 ℃.Vermiculite brick is widely used in roof treatment and sound insulation treatment.
Underground pipeline and greenhouse pipeline of thermal insulation and sound absorption materialsThermal insulation material, indoor and tunnel interiors, walls and ceilings in public places
Metallurgy: steel frame coating materials, iron making, casting slag removal coating materials for steel frame of high-rise buildings, vermiculite bulk materials
Other aspects:Adsorbent, filter aidChemicalsAnd active carrier of fertilizersewage disposalSeawater oil absorption, cigarette filter tip, explosive density regulator
