Why should polyurethane cold - storage panels be selected for the construction of cold storages?

More and more people are building cold storages, and most of them choose to use polyurethane cold - storage panels for construction. Why is this the case? Why do people choose polyurethane cold - storage panels for building cold storages? What advantages does polyurethane cold - storage panel have in terms of cold - storage construction and cost?

Polyurethane cold - storage panels use lightweight polyurethane as the core material. The advantage of polyurethane is its excellent heat - insulation performance. The exterior of the polyurethane cold - storage panel is composed of SII, PVC color - coated steel plates and stainless - steel plates.

This has the benefit of preventing the transfer of temperature due to the large temperature difference between the inside and outside of the cold - storage panel, thus making the cold storage more energy - efficient and improving its working efficiency.

Polyurethane cold - storage panels are fire - resistant, flame - retardant and can withstand high temperatures. After adding a flame - retardant, polyurethane is a difficult - to - burn self - extinguishing material. Its softening point can reach above 250 degrees Celsius, and it only decomposes at relatively high temperatures. In addition, when polyurethane burns, ash forms on the surface of its foam, and this layer of ash helps to isolate the foam below. It can effectively prevent the spread of fire. Moreover, polyurethane does not produce harmful gases at high temperatures.

Due to the excellent heat - insulation performance of polyurethane panels, under the same insulation requirements, the thickness of the building's exterior envelope structure can be reduced, thereby increasing the indoor usable area.

The selection of high - quality polyurethane cold - storage panels is of great significance for cold storages. Because cold storages are different from ordinary warehouses. The temperature inside a cold storage is generally relatively low, and the requirements for air temperature, humidity, and the environment are relatively high. Therefore, when choosing polyurethane cold - storage panels, we must pay attention to selecting those with good temperature control performance. If the selected polyurethane cold - storage panel is not suitable and it is difficult to control the temperature inside the cold storage, it is likely to cause the products stored in the cold storage to deteriorate, or make the cold - storage refrigeration compressor work frequently, wasting more resources and increasing costs. Only by choosing the right panel can the cold storage be better maintained.

Polyurethane cold - storage panels have strong anti - deformation ability, are not easy to crack, and have a stable and safe surface finish. The porosity structure of polyurethane material is stable, basically a closed - cell structure. It not only has excellent heat - insulation performance, but also good freeze - thaw resistance and sound - absorption properties. The average lifespan of a hard - foam polyurethane insulation structure can reach more than 30 years under normal use and maintenance conditions. It can ensure normal use under the service life of the structure, in dry, humid or electrochemical corrosion environments, as well as in the presence of insects, fungi or algae. Although the unit price of polyurethane foam materials is higher than that of other traditional insulation materials, the increased cost will be offset by a significant reduction in heating and cooling costs.

Thus, it indirectly reduces the cost of building the cold storage.