As a widely used polymer materials, market demand for polyurethane showing a sharp upward trend, particularly evident in the construction field. And follow the world of environmental protection, global warming, energy consumption and other aspects of the regulations more complete, rigid polyurethane increasingly sought after. Jiangmen sandwich panel will discuss market prospects polyurethane sandwich and face the opportunities and challenges.
Polyurethane sandwich panel
Comparative advantages of polyurethane sandwich panels
Compare EPS, XPS, PU's
We are now in regular contact with the insulation materials, usually EPS, XPS, PU three, they carry out on their respective characteristics and trends to make a analysis.
EPS is polystyrene, is a thermoplastic, its low-cost advantage is cost, better thermal insulation, fire-retardant features but very poor adhesion function normally, it can only be a transitional product.
Also known as XPS extruded polystyrene foam board, its processing technology is to re-melt the waste particles of polystyrene, high temperature and pressure extrusion process to write Freon and other foaming agent, so that they constitute a cell-like structure, but also It has a certain thermal insulation. Since such inion is reasonably recycling polystyrene waste, so it is environmentally friendly, its outstanding strengths is the capital generally, waterproof, high strength, forming stable, and even can be used as runway inion widely in recent years for external wall insulation fields. Its disadvantage is poor bonding function, insulation function normally.
PU refers to polyurethane foam, urethane-rich repetitive chain of a polymer compound class, is one of the most primary categories polyurethane child, usually in terms of the construction of the first insulation refers to a foam. Polyurethane foam is now internationally functions best insulation materials, the indicators are better than the traditional function of XPS, EPS, insulation not only good, strong adhesion and facilitates continuous production, the United States now forming. But the biggest drawback is the high cost.
Polyurethane foam sandwich panel presentation
Polyurethane foam sandwich panels from the exterior steel roll forming, center coated polyurethane foam composite made with thermal insulation, high mechanical strength, convenient means other advantages.
Polyurethane Foam data:
Raw materials: polyurethane, density 40 ~ 45 (kg / m3)
Thermal conductivity: 0.02 ~ 0.024 (W / (m.K))
Maximum operating temperature: 150 (℃)
Characteristics: Polyurethane foam insulation board with a hole uniform, high strength, thermal insulation, stable and good scale, low water absorption strengths.
Now, the construction of energy consumption has become a primary handicapping sustainable world carried out in our country, the construction of the total energy consumption of energy has forced clinical social 30%, both in new construction, the construction of high energy consumption and 99%, respectively 95% feel the burn of energy-saving construction. Thermal insulation for construction was close to the primary, the core issue is the choice of insulation materials. Therefore, the investigation situation polyurethane sandwich panels will be getting better and better.