Polyurethane rock wool sandwich panel is widely used in refrigeration, green, environmental protection, energy conservation, health and other industries. The advantages of polyurethane rock wool board widely used in cold storage are:
1. Rigid polyurethane foam is used as the lining material of the cold storage plate. The advantage of polyurethane rock wool sandwich panel is its good thermal insulation performance. The exterior wall PU is composed of SII, PVC color steel plate and stainless steel plate. The utility model has the advantages of preventing temperature diffusion caused by excessive internal and external temperature difference, thereby saving energy and improving the efficiency of the cold storage.
2. Polyurethane rock wool sandwich panel is fireproof, flame retardant and high temperature resistant. It becomes a flame retardant self extinguishing material after adding flame retardant. The softening point is above 250, and it will decompose only at high temperature. In addition, when the polyurethane rock wool sandwich panel burns, ash will form on the surface of foam, which helps to isolate the foam below. It can effectively prevent the spread of fire, and the polyurethane rock wool board will not produce harmful gas under high temperature.
3. Because the polyurethane rock wool sandwich panel has excellent thermal insulation performance, it can reduce the thickness of the building exterior enclosure structure and increase the indoor use area under the same requirements for thermal insulation.
4. Strong deformation resistance, no cracking, smooth, stable and complete surface. PU has a stable porous structure, basically a closed pore structure. It not only has excellent heat preservation performance, but also has good frost resistance and sound absorption performance. After normal use and maintenance, the average service life of the insulation structure of hard foam insulation structure can reach more than 30 years. During the service life of the structure, the unit price of polyurethane rock wool sandwich panel is higher than that of other traditional insulation materials under the normal conditions of dry, wet or electrochemical corrosion, but the increased cost will be offset by the greatly reduced heating and cooling costs.
