What are the insulation materials?
1, vacuum insulation panel. Vacuum insulation board is a kind of high-efficiency insulation board made of inorganic fiber core material and high gas resistance composite film, which is covered with special interface mortar by vacuum packaging technology.
2. Aerogel insulation board. Aerogel material is called the lightest solid in the world. Nano-silica aerogel is the main material, which is compounded by a special process. It has excellent properties such as high temperature resistance, low thermal conductivity, low density, high strength, environmental protection, waterproof and incombustible, and has excellent sound insulation and shock absorption performance. It is an indispensable and efficient heat insulation material in metallurgy, chemical industry, national defense, aerospace and other fields.
3. Foamed polyurethane. Among single organic thermal insulation materials, polyurethane thermal insulation material has better performance. According to the process, it is divided into on-site foamed polyurethane and factory prefabricated rigid foam polyurethane board. In-situ foamed polyurethane is a two-component rigid foam material with heat insulation and waterproof function, which is made of isocyanate and polyol (combined polyether or poly-cool) as main raw materials and additives.
4. Extruded polystyrene board. Extruded polystyrene board is also a kind of polystyrene board, but the production process is extrusion. Extruded polystyrene board (XPS board for short) is a rigid foam plastic product with closed-cell structure, which is mainly made of polystyrene resin or its polymer, supplemented by a small amount of additives.
5. Inorganic polymer board. This is a kind of thermal insulation material that has not been used in the field of external wall thermal insulation engineering. According to the manufacturer, they introduced Japanese production patents. Inorganic polymer board is wrapped by PVC resin with a film containing strong calcium carbonate, and there are aggregates with excellent heat insulation performance and closed space in the film. It is an inorganic foaming material, which will not burn or melt under the flame. Carbonization is formed in a few places under long-term flame, and the original shape is maintained.
Tips for choosing insulation materials:
1, fire rating. Thermal insulation materials are divided into four grades: flammable, flammable, nonflammable and nonflammable. Owners should choose flame retardant materials when making insulation layer. When purchasing, you should check whether there is a qualified mark on the packaging of thermal insulation materials, whether it is marked with fire protection grade, and what is the fire protection grade.
2. Heat insulation. The function of thermal insulation material is thermal insulation, so its thermal insulation performance is the key to product quality. Understanding the thermal insulation of thermal insulation materials is mainly reflected by looking at the thermal conductivity of materials. When buying, pay attention to the quality index of the product.
3. Material requirements. When purchasing external thermal insulation materials for external walls, it should be noted that the external thermal insulation directly faces the wind and rain of nature, which requires higher performance and quality of thermal insulation materials, mainly because the thermal conductivity of thermal insulation materials should meet the standards, and the waterproof, freeze-thaw, weather-resistant, impact-resistant and wind-resistant properties are better.
When we choose thermal insulation materials, the first thing to consider is its fireproof performance, and its thermal insulation is something we need to know. These are the insulation materials that Bian Xiao introduced to you today and the skills of purchasing insulation materials. This is the end.