Cold storage board manufacturers: what is the difference between manual insulation board and polyurethane cold storage board?
Release time:
2022-05-15
The difference between manual insulation board and polyurethane cold storage board is that the use of polyurethane cold storage board is better. The closed cell rate of the manual insulation board is low, resulting in poor insulation performance, poor flame retardancy, and low adhesion between the board and the interlayer, resulting in easy cracking of the board and the interlayer, and short service life; manual production is slow; specifications have errors and low strength Lead to limited length.
The difference between manual insulation board and polyurethane cold storage board is that the use of polyurethane cold storage board is better. The closed cell rate of the manual insulation board is low, resulting in poor insulation performance, poor flame retardancy, and low adhesion between the board and the interlayer, resulting in easy cracking of the board and the interlayer, and short service life; manual production is slow; specifications have errors and low strength Lead to limited length.
Cold storage board manufacturers to tidy up the polyurethane cold storage board has the following advantages:
1. Insulation
Low thermal conductivity, good thermal performance. When the density of rigid polyurethane is 35~40kg/m3, the thermal conductivity is only 0.018~0.024W/(m.k), which is very low in all thermal insulation materials.
2, moisture-proof, waterproof, corrosion resistance is good
It can meet the higher requirements of building insulation materials for fire resistance, that is, building materials B1 or B2 flame retardant standards. And in the combustion is inert, the surface of the fire carbonization, will not produce molten combustibles, thus suppressing the spread of fire, its ignition point is higher than wood. External wall thermal insulation system in case of fire does not transmit fire.
3. Fire prevention, flame retardant, high temperature resistance
Cold storage board manufacturers said that after adding flame retardants, polyurethane is a flame-retardant self-extinguishing material with a softening point of more than 250, and it will decompose only at higher temperatures. In addition, when burning, carbon deposits are formed on the surface of the foam, which helps to isolate the foam below and can effectively prevent the spread of flame. And no harmful gases are produced at high temperatures.
4. Wide, light and thin walls
As a structural material at the same time, the whole structure has the advantages of light weight, large span and high load. Cold storage board manufacturers said that the thin polyurethane cold storage board can meet the relevant provisions of the building energy consumption limit, allowing the use of thin plates during construction, saving building space.
5. Stable quality, long service life, high comprehensive cost performance.
According to the introduction of the library board manufacturer, under normal use and maintenance conditions, the average life of the insulation structure can reach more than 30 years. Under normal conditions of use during the service life of the structure, it will not be damaged by external factors such as drying, moisture or electrochemical corrosion, the growth of insects, fungi or algae, or the destruction of rodents. Although the unit price of rigid polyurethane foam is higher than other traditional insulation materials, the increased cost will be offset by a longer service life and a substantial reduction in heating and cooling costs.
6. Comprehensive cost-effective
Although the unit price of rigid polyurethane foam is higher than that of other traditional insulation materials, the increased cost will be offset by a significant reduction in heating and cooling costs.
According to the library board manufacturers, polyurethane cold storage plates are widely used in the market at present. The light polyurethane with good heat insulation performance as the inner material can reduce the heat transfer caused by the temperature difference between inside and outside, so as to achieve greater efficiency of the refrigeration system. It is currently an internationally recognized building insulation material.
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