What isWhat are the polyurethane boards and composite panels!
Everyone has heard of composite panels, and when the new house needs to be renovated, how much will you understand the building materials, you may not know what is polyurethane board, composite board and other building materials, the following will analyze the marketPartition of polyurethane sheets and composite panelsKind.
What is Polyurethane? The molecular backbone contains more urethane genes, this large class of polymers is referred to as polyurethane, it is a polymer material between plastic and rubber, its elongation is large, the hardness range is wide, the formula adjustment range is large, and it has wear resistance and mechanical properties. Polyurethane has low thermal conductivity and good thermal performance, when the density of polyurethane is 35-40kgm?, the thermal conductivity is 0018~0.024w/(m.k) It is the lowest thermal conductivity of the current insulation materials. And when the polyurethane is burned by fire, the surface is charred and coking, and there will be no molten dripping. The insulation system is not flame propagating.
So what is a polyurethane composite panel? Polyurethane composite panel, also known as PU sandwich panel, is a high-strength, energy-saving and environmentally friendly building board composed of upper and lower color steel plates and intermediate foamed polyurethane. It is generally used in the roofs and walls of industrial and civil buildings such as factories, shopping malls, villas, etc.
Polyurethane composite panelsadvantages.
1. Heat preservation, heat insulation, sound insulation.
Polyurethane composite panels have excellent thermal and sound insulation properties. Because of the small bulk density and low thermal conductivity of polyurethane rigid foam, the 5cm thick polyurethane composite board is about the thermal insulation effect of 1m thick concrete. And polyurethane does not support combustion.
2. Advantages of roof panels.
The polyurethane roofing panels are connected by concealed nails and have a unique waterproof groove design, which effectively avoids the penetration of rainwater.
3. Advantages of wall panels.
There are no exposed screws on the surface of the polyurethane composite panel, which makes the building wall more beautiful. Polyurethane composite panels also have an extremely high flexural capacity, reducing the reliance on auxiliary steel structures.
4. Green environmental protection.
The polyurethane composite board is made of bio-based raw materials, and no harmful substances banned or restricted by the state are added, which is green and environmentally friendly.
What are the types of composite panels.
1: Rock wool composite panel.
Rock wool composite board with basalt, iron ore and other main raw materials, has the advantages of light weight, small thermal conductivity, heat absorption, non-combustibility, good integrity, high stiffness and mechanical properties of impact resistance and shear resistance, which overcomes the defects of insufficient integrity and stiffness, bending and impact resistance of the previous plate. It is mainly used for building walls, firewalls, etc.
2: Gypsum composite board on paper surface.
It is a heat-insulating sandwich panel made of self-extinguishing foam plastic as a sandwich material and compounded through a specific production process. It is widely used in building interior and exterior wall insulation systems.
The fire performance reaches the flame retardant type B1 level. Stronger adiabatic insulation. The same effect is less cost-effective, and when the same effect is the same, it is more cost-effective than other fire-resistant external insulation systems. The construction is simple and the system integrity is good.
3: Calcium silicate composite panel (EPS) is a heat-insulating sandwich panel made of self-extinguishing foam plastic as a sandwich material, composite calcium silicate board, and composite through a specific production process. Calcium silicate composite board has the properties of fire prevention, moisture resistance, sound insulation, heat insulation, etc., which can attract water molecules in the air when the indoor air is humid, and release water molecules when the air is dry, which can properly adjust the indoor dryness and humidity and increase comfort. Strong thermal insulation ability, low cost of the same effect, high cost performance, simple construction, good system integrity.