Polystyrene foam sandwich wall panel
DATE：2021/11/10 8:37:34 / READ： / SOURCE：This station
Polystyrene foam sandwich wall panel
Polystyrene foam can be directly used as building enclosure (wall, roof) and composite plywood. One of the development trends of modern construction technology in engineering construction is to reduce the weight of the building and increase the degree of assembly and prefabrication. The lightweight frame structure is a new type of structural system that adapts to this trend. The composite sandwich building board or sandwich panel made of polystyrene foam and other lightweight materials is light in weight and can meet the requirements of a wall. The building function is an ideal wall material for frame structure buildings.(1) Metal surface polystyrene foam sandwich panel. Metal surface PS foam sandwich panel is made of flame-retardant polystyrene foam as the core material, color coated steel plate as the surface material, and a metal compounded with an adhesive. Sandwich board.
①Structure The basic structure of the sandwich panel, which is composed of the surface layer board and the core layer material. The surface layer gives the sandwich panel strength and has the functions of waterproofing, protecting and decorating. The core material gives the sandwich panel heat insulation and sound insulation, and improves the rigidity, reduces its own weight. Color steel plates, aluminum plates, asbestos cement boards, gypsum boards, etc. can all be used as facing boards. Color steel plates can be corrugated, and cement plates are generally flat plates.
③) Raw materials and requirements
a Metal surface material color coating board should meet the requirements of GB/T12754, must be galvanized, and the double-sided quality of the zinc layer shall not be less than 180g/m
b. The core material polystyrene foam plastic board should meet the requirements of GB10801, the degree is not less than 18kg/m, the thermal conductivity is not more than 0.041W/(mK), it is flame-retardant R), and the oxygen index is not less than 30%
c. The bonding strength of the adhesive should be greater than 0.1MPa. During the residual separation test, the polystyrene foam particles bonded to the surface material should be evenly distributed, and the bonding area of each separated surface should not be less than 85%
④In recent years, the application of polystyrene foam sandwich panels has been increasing rapidly during the processing process. Many manufacturers have produced them one after another, but their market is still very wide. The main reason is that the implementation of my country's building energy conservation regulations has promoted the industry's styrene foam sandwich panels. The application of the board in the project.
The polystyrene foam board of the polystyrene foam sandwich panel adopts a self-extinguishing molded board, which is referred to as EPS. The composite board formed by using EPS as the sandwich core, 0.5-0.75mm thick color coated steel plate as the surface, and bonded with high-strength adhesive is called the color steel plate polystyrene foam sandwich board. The cost of styrene foam is much lower than that of polyurethane foam, and its thermal insulation effect is similar to that of urethane. Therefore, it is widely used in various domestic mobile homes, large-span roofs, and air-conditioning cold storage. It is used in cold storage projects. The competition with polyester also has certain advantages. The disadvantage is that it is not fire resistant and therefore subject to certain restrictions
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