Product Details
Vermiculite , with layer construction and interlaminate water like mica . The color of the raw vermiculite mainly have 3 type: black ,brown and white . It has much more higher melting point ?an by 1270-1370oC . Because of above particularity , vermiculite mine have much more value for exploitation . Also vermiculite have the particularity on the fire resistance , heating insulating , sound-absorb ,non-toxin , huge liner expansion rate and tiny heat conduction rate etc. It begins expand when it is heated over 200oC, become the worm-like shape and it can be reached the maximum volume (15-25 times enlarge ) when is heated rapidly to 800oC . This forms the materials with low density (80-130kg/m3 ) , excellent insulation properties and good sound absorption and ion exchange capacity .With the composite of bond and the surface macromolecules , vermiculite can be make into the light multifunctional vermiculite board . The raw vermiculite can me made into vermiculite board directly only after being broken, to be used for decoration generally .While the Vermiculite board which being made of exfoliated vermiculite have much more light weight , absorb-sound , and wide application such as the fire-resistance , heating-insulation .
