The main reasons for using polyurethane for cold storage panels include its excellent thermal insulation performance, fire retardant performance, structural stability and environmental protection characteristics. ‌

 

First, polyurethane cold storage panels have excellent thermal insulation performance. Its thermal conductivity is low, usually in the range of 0.02-0.04W/(m·K), and the thermal conductivity of some high-performance products is even as low as 0.019W/(m·K), which is much lower than traditional insulation materials such as rock wool and mineral wool‌1. This low thermal conductivity makes polyurethane cold storage panels perform well in thermal insulation, which can significantly reduce energy consumption and reduce operating costs‌2.

 

 

 

Second, polyurethane cold storage panels have fire retardant properties. After adding flame retardants, polyurethane is flame retardant and self-extinguishing. When burning, an ash layer will be formed on the surface, effectively isolating the fire source and preventing the spread of fire. In addition, polyurethane does not produce harmful gases at high temperatures, further improving its safety‌34.

 

 

Third, polyurethane cold storage panels have stable structures and strong deformation resistance‌. Its closed-cell structure not only has good waterproof and moisture-proof properties, but also effectively prevents the temperature propagation caused by the large temperature difference between the inside and outside of the cold storage board, thereby maintaining the energy-saving effect of the cold storage ‌34.

 

Finally, the polyurethane cold storage board has environmental protection characteristics ‌. Its production process focuses on environmental protection and uses environmentally friendly raw materials. Some high-end products even achieve zero ODP (ozone depletion potential) and low GWP (global warming potential). In addition, the polyurethane cold storage board has a long service life and can be recycled, which is in line with the concept of sustainable development ‌2.