Expanded vermiculite with expanded vermiculite
Baixin "brand expansion thermal tears coefficient of vermiculite is generally 0.07-0.07w/m.k, under normal temperature condition (temperature range of 20-30 degrees" letter "brand) technology performance expansion coefficient of heat conductivity and the relationship between particle size and bulk density of vermiculite as shown in the product specifications. "Letter" brand of expanded vermiculite refractory for 1300-1350 degrees, the safe use of temperature -30 to 1100 degrees "letter" brand. Swelling vermiculite, some moisture absorption rate is small, in the relative humidity of 100% in the environment, after 24 hours, the moisture absorption rate is generally not greater than 2%. "Letter" in the dry state, vermiculite, has good frost resistance, at -20, after 15 times of freeze-thaw, the grain size composition unchanged. Expanded vermiculite is inorganic, so it is free of fungus, does not decay, does not deteriorate, and is not easily bitten by moth eaten mice. "Shenbao" brand expanded vermiculite alkaline not acid and therefore should not be used for acidic erosion at.
Vermiculite products: product categories are golden vermiculite, silvery white vermiculite; varieties of vermiculite, vermiculite powder, horticultural vermiculite, expanded vermiculite mixture.The main models are: 1-3mm, 2-4mm, 3-6, 10-20, 20-40, 40-60, 80-120, 100, 150, 200, 325, etc., specifications can be produced according to the requirements of the 60-100.
Raw vermiculite after calcination, the volume can be expanded by several times, the volume expansion after the vermiculite called expanded vermiculite.
