Phenolic _ phenolic insulation board exterior wall insulation board, phenolic board manufacturers
1. Mineral inorganic heat preservation material: classes are mineral wool, expanded vermiculite, expanded perlite and diatomite gypsum, slag, rock wool, glass fiber and its products, such as chemical synthetic polyester and synthetic rubber class has a polystyrene, polyvinyl chloride, polyethylene, polyurethane foam and hard acid ester and its products, such as this kind of material is not easy to decay, high temperature resistant performance is very good, some moisture absorption, but the price is more expensive.
2. Organic heat insulation materials, such as straw, rice husk, sawdust, wood shavings, wood fiber and its products. The source heat preservation equipment material density is small, more extensive, most of the price is quite low, but the moisture absorption, easy to corrupt, after be affected with damp be affected with damp, high temperature decomposition or combustion.
3. Metals and heat insulation heat preservation material: mainly aluminum and its products. It is the use of radiation characteristics on the surface of the material for insulation performance. With this kind of surface properties of materials, almost do not absorb heat incident to it, and the ability of itself to the outside radiation heat also is very small, this kind of material supply of goods is less, the price is relatively high.