Building insulation materials used in a wide variety of building insulation paper which was the most common use of thermal insulation materials, inorganic materials have expanded perlite, aerated concrete, rock wool, glass wool and other organic materials are polystyrene foam, polyurethane foam, etc.. These materials epac bulle are the advantages and disadvantages of thermal insulation performance, mainly by the thermal conductivity of the insulating material of paper level (indicator of its thermal conductivity) epac bulle of the decision. Thermally conductive materials more difficult (ie, smaller thermal conductivity), its thermal epac bulle insulation properties will be better. Generally speaking, the common characteristics of thermal insulation materials are lightweight, loose, porous or fibrous form, its interior is not blocking the flow of air to the heat conduction. Which inorganic materials are non-combustible, wide operating temperature, good chemical epac bulle resistance and other characteristics, organic materials have high strength, low water absorption, better impermeability and other characteristics. Commonly used in insulation materials, epac bulle thermal conductivity of expanded perlite, rock wool, glass wool, polystyrene foam, polyurethane foam and other materials are relatively small, although there are differences in the level, but the difference is not great, belong efficient insulation materials, but no load-bearing function; thermal insulation properties of aerated concrete is better than ordinary concrete brick and other building materials, but lower than the more efficient insulation material. Because of aerated concrete is cement, lime, quartz sand, fly ash, slag and blowing agents such as aluminum, by high pressure or atmospheric steam car insulation made of paper support, greater epac bulle density, dry density of 300 per cubic meter about -700 kg, can use industrial waste, there is a certain load-bearing ability, single masonry walls, both insulation and load-bearing role. Expanded perlite perlite particles made by roasting expansion in our country due to abundant sources of raw materials, the production process is relatively simple, great production, epac bulle prices cheaper. Granular perlite, epac bulle lightweight, bulk density of about 50-150 kg per cubic meter, easily dispersed by the wind, low moisture absorption, but easy to absorb water, damp insulation effect is greatly reduced. Availability of cement, lime or sodium silicate plaster or stir dubbed into plate, tube watts, but its performance is less than loose insulation material, some added water repellent or add asphalt with water-resistant, moisture-proof function. Rockwool is basalt, andesite and other minerals melted by injection or centrifugation method fibroblasts, then add into board adhesives, carpets, strip, epac bulle tube shell and other products, the bulk density of 80-200 kg per cubic meter, good heat resistance, the general temperature of 350 , especially for furnaces and pipe insulation. Under load, the bulk density increased, decreased insulation properties. During transportation and storage to avoid the rain flooding. Glass wool is to silica sand, limestone, quartz and other raw materials for melting flame, centrifugation or blowing into the legal system. Those with smaller epac bulle fiber diameter was excellent, in the ordinary glass wool, the better quality is the 1st 7 micron epac bulle average diameter of wool, but also pay attention to the shot content. Made in the fiber board added adhesives, tapes, carpets, shells and other products used. Light weight, density 15-30 kg per cubic meter, or another big number. Shop conveniently hang or paste than abroad for a pitched roof ceiling insulation is widespread. Be careful not to be stored in the open air, to avoid water absorption. Styrofoam Depending epac bulle on the production process, there are two types of intumescent and extrusion. Due to the current expanded polystyrene sheet convenient lightweight, was very common. Such material is light weight, 15 per cubic meter - 50 kg, easy to cut, low water absorption, high compressive strength, resistance to low temperature -80 , but not senior cadres temperature 75 , after adding a flame retardant epac bulle self-extinguishing resistance, chemical stability, resistance to acid, alkali, salt erosion, epac bulle but can be dissolved epac bulle in solvents such as acetone, gasoline, etc. In the future, extruded polystyrene building insulation paper, due to the high strength, excellent weather resistance, there will be greater development, should be used for inverted roof, floor insulation and so on. Polyurethane foam according to the different materials used, there are two kinds of polyether and polyester, made by the foaming reaction, but also soft and hard points. epac bulle Soft poly urethane mold-proof epac bulle building lightweight, epac bulle good elasticity, tear resistance, epac bulle shock resistance. High-strength hard, non-absorbent, easily deformed, using a wide temperature range, the adhesive can be used with other materials, easy foam construction, epac bulle can be directly pouring foam, such as for infusion sealing effect is very good. In addition, there is a foil insulation materials, aluminum foil and kraft paper line after bonding with a composite made of corrugated sheet metal, aluminum can also be molded pieces can be multi-layered set as mezzanine wall or roof, light body, moisture, heat, cold performance are good.
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