Product Introduction:
The production of dual -metal surface polyurethane pu sandwich wall panel with polyurethane hard foam as a thermal insulation layer requires an excellent consecutive production line of the sandwich panels. The production process is a cold bending of color galvanized (aluminum -plated zinc) internal and external galvanized (aluminum -plated zinc), and the middle spray polyurethane hard foam is compounded.Polyurethane wall panels, pu insulation panel, polyurethane roof panels, polyurethane composite boards are popular saying for polyurethane sandwiches. To be precise, the name should be a polyurethane heat -thermal heating sandwich panels for the building. It is usually used for industrial factories, logistics and warehousing, integrated house walls and roof enclosure systems.
|
Item |
Density（kg/m³） |
Thermal conductivity（w/m.k) |
Equivalent insulation thickness (mm) |
|
Polyurethane panels |
40-42 |
0.018-0.024 |
35 |
|
Rock wool panels |
120 |
0.036-0.041 |
60 |
|
Red brick walls |
1600 |
0.81 |
475 |
|
Concrete walls |
2300 |
1.28 |
1075 |
Advantages of pu sandwich wall panel:
Hidden nails are connected between pu insulation panel, there is no exogenous screw on the surface, and the building walls are beautiful and smooth.Extremely high -bending bearing capacity, superior wall mechanics performance, reducing dependence on the auxiliary steel structure.The insulation performance is excellent, reducing the cost of indoor air -conditioning devices in the building. A variety of appearance effects, beautiful walls.
|
Characteristics of pu sandwich wall panel |
||
|
Performance |
parameter |
describtion |
|
Thermal conductivity |
≦0.023w/m.k |
The thermal conductivity is very low, 5cm thickness PU sandwich panel is equivalent to 100 cm thick concrete thermal insulation effect |
|
Core material density |
40-48kg/m3 |
The thickness of new material of PNS pu insulation panel can reach 42kg/m3, pir wall panel can reach 48kg/m3 |
|
Closed porosity |
Over 97% |
Waterproof and moisture-proof, and will not cause water seepage on the wall due to moisture absorption |
|
Thickness |
Customizable |
50/75/100/150/200mm |
|
Weatherability |
durable |
After weather resistance test for more than 6 months, all performances are stable and can be used for the same life as the building |
|
Stability |
excellent |
The compressive strength of PNS pir wall panel is above 180kp, and the PU sandwich roof panel has better temperature resistance and no deformation |
|
Flame retardancy |
excellent |
Tested by the National Quality Supervision and Testing Center for Fireproof Building Materials, the quality of each item has reached the B1 fireproof level under the GB8624 standard, which belongs to thermosetting materials. After burning, it is carbonized into ashes, and extinguishes itself without dropping and spreading |
|
Green and environmental protection |
excellent |
pu insulation panel is high pressure foamed and complies with European environmental protection standards. It does not contain formaldehyde and is not subject to microbial erosion |
|
The thickness, coating and manufacturer of internal and external steel plates can be selected according to customer requirements |
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Scope of application:
1. Industrial plant and warehouse:
Polyurethane sandwich panels are mainly used for roofs and exterior walls of industrial plants and warehouses. In the past, the roofs of industrial plants were mostly made of prefabricated concrete slabs or asbestos slabs. With the rapid promotion of light steel structure, polyurethane sandwich panels have also replaced the above two materials with many significant advantages. At the same time of providing better heat insulation effect, sandwich panels, together with the mature light steel structure, can truly reflect a series of advantages of light steel system, such as light weight, fast and efficient, flexible layout, and so on. Therefore, sandwich panels have become the preferred scheme in single storey factory buildings. For multi-storey industrial plants, in addition to the pu insulation panel used for the roof, the polyurethane sandwich panels can also be used for flexible layout of the external walls. The purpose of beautifying the building appearance can be achieved through the changeable colors and shapes of color coated panels. For industrial buildings with constant temperature and humidity requirements, sandwich panels with better thermal performance than brick walls are used as enclosure materials, which can greatly save operating costs after completion.
Generally speaking, pir wall panel can be applied to almost all kinds of different building needs, including industrial plants, public buildings, composite houses, purification projects and other construction fields.
2. Public buildings:
pu insulation panel can be mainly applied to the roof and exterior wall of public buildings with large space requirements, such as airport, station waiting hall, stadium, theater and auditorium, exhibition hall and convention center, museum, etc. Public buildings have a series of characteristics that require more space, indoor air conditioning, fire protection, etc. than industrial plants. Such buildings mostly adopt the roof truss structure of grid or pipe truss. Therefore, the materials of roof panels have higher requirements in light weight, thermal insulation, fire safety, waterproof, sound absorption, durability, etc.
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