Metal PU Sandwich Panel

Generally, metal PU sandwich panels (PU sandwich panels )are divided into two types, one is pure polyurethane, and the other is composite of polyurethane and rock wool. The advantages of the two are not the same.

The bending resistance and load-bearing effect of pure metal PU sandwich panels are quite good, and its shrinkage advantage also makes installation more convenient, while polyurethane edge-sealed rock wool boards are edge-sealed with white and black materials to form polyurethane, so the joint is more firm and not easy to get out of joint, and the waterproof effect is better.

So how to improve the strength of metal PU sandwich panel? Generally, it will start from four points, formula, temperature, time, and equipment.

In the metal PU sandwich panel, the content of isocyanate is 66%, the content of polyol is 26%, and the flame retardant is 3%. Others include catalyst, foaming agent, etc. Reasonable formula ratio can not only improve the flame retardancy, it can increase the foam density, thereby improving the overall strength.

The second is to control the temperature: Raw material temperature, surface layer temperature, track temperature and drying plate temperature.

Stable temperature control can improve the strength of metal PU sandwich panels. Controlling the raw material temperature ensures the polyurethane reaction. The appropriate temperature ensures the standardization of the reaction. The premise of strength is to control the temperature of the surface layer to ensure the reaction speed of polyurethane foam, to provide external heat support for chemical reactions, to control the temperature of the track to ensure the forming of polyurethane foam, and to have considerable strength when the track shoe is released, and to control the temperature of the drying plate to ensure the post-curing of polyurethane foam is guaranteed, the better the curing, the higher the strength.

In the production process, the compressive strength can also be improved by controlling the top-touch time. Under the premise of ensuring that the metal PU sandwich panel is filled, minimizing the time difference between wire drawing and top-touch can effectively improve the compressive strength.

Finally, through the corona of the equipment, apply glue to improve the bonding strength. Corona can remove dust and oil. Applying glue can increase the bonding between foam and steel plate and improve the service life.

With the iterative upgrade of the foaming agent and the progress of the preparation process and equipment, too many changes have taken place. But its core is still the perfect combination of man, machine, material, method, environment and measurement.

Metal PU sandwich panel Application – Metal PU sandwich panel, Polyurethane insulation board as building energy-saving insulation materials, in Europe, the United States, Japan and other developed countries have been widely used, the penetration rate of 80%, in China, less than 10%. Metal PU sandwich panel as an excellent energy-saving insulation materials, its excellent insulation, fire, insulation performance and can solve the energy consumption crisis in China to provide efficient solutions. Has a very wide range of markets.

Metal PU sandwich panel is widely used in large industrial plants, cold storage, garage, mobile housing, exhibition hall, exhibition hall, gymnasium, shopping center, airport, power plant, villa, hospital, stratum and high-rise office buildings and other fields, due to excellent insulation performance Also widely used in industrial and civil construction of the roof and wall.

Metal PU sandwich panel also known as PU sandwich panels. Polyurethane is the core of the composite board, from the upper and lower color steel plate plus the middle of the foam polyurethane. Generally used for roofing of buildings, the board has good insulation, insulation, sound insulation, and polyurethane does not help combustion, in line with fire safety. Upper and lower board plus the common role of polyurethane, with high strength and stiffness, the lower plate smooth and smooth, clear lines, increase the indoor aesthetics, flatness. Easy installation, short duration, beautiful, is a new type of building materials.

Metal PU sandwich panel with light, beautiful and good anti-corrosion properties, but also direct processing, it to the construction industry, shipbuilding, vehicle manufacturing, furniture industry, the electrical industry to provide a new type of raw materials, played a steel Wood, efficient construction, energy conservation, pollution prevention and other good results.

Metal PU sandwich panel as a new type of building energy-saving insulation materials, in different countries have been widely used, its use in the promotion of building materials continue to play an important role in the road, with the modern construction industry requirements More and more high, especially for the use of materials inside the house is demanding, so the choice of polyurethane insulation board is a general trend.

Kangbeier Technology Innovation (Shandong) Co., Ltd. was established in 2006. After nearly 20 years of development, it has gradually established five branches, including Shandong Liujun Decoration Materials Co., Ltd., Shandong Liujun International Trade Co., Ltd. (Export Company), Shanghai Kangbeier New Materials Technology Co., Ltd., and Guangdong Alu minum New Materials Co., Ltd. It is a comprehensive company integrating scientific re search, production, sales, international trade and services.

The company is headquartered in Shanghai, China. with two production bases. The first is located in Linyi, Shandong, and the second is located in Guangzhou, China. The main products are Aluminum honeycomb composite materials, including aluminum honeycomb ceiling and wall systems, aluminum honeycomb partition systems, aluminum honeycomb furniture panel systems, and aluminum honeycomb ship RV systems. It is committed to providing high-quality products and services to global users.