To explain to you about some knowledge of cold storage insulation board
Release time:
2021-10-19
To explain to you about some knowledge of cold storage insulation board There are two kinds of polyurethane materials for heat preservation in the freezer: white and black. The foaming process is basically the same, and the foam made is also very similar in appearance, but the difference in white used will lead to large differences in product functions, or the use of some residual white cannot show the effect of heat preservation.
To explain to you about some knowledge of cold storage insulation board
There are two kinds of polyurethane materials for heat preservation in the freezer: white and black. The foaming process is basically the same, and the foam made is also very similar in appearance, but the difference in white used will lead to large differences in product functions, or the use of some residual white cannot show the effect of heat preservation.
Insulation function of 1. cold storage insulation board data:
The first requirement of polyurethane thermal insulation data used in cold storage is thermal insulation function, but the quality of thermal insulation function cannot be investigated by naked eyes before actual application. It is too late to investigate the uneven power consumption. A company has carried out strict operation in material selection through a number of tests to achieve this purpose:
1. Use structural amine ether to reduce thermal conductivity and improve thermal insulation.
2, all kinds of materials and formulas to minimize the water content, to prevent water foaming lead to poor insulation function.
3, the main data polyether selection after strict post-processing of large manufacturers of products, compared with small manufacturers without post-processing of polyether, foam foam hole uniformity is high, foam hole wall thin. The heat preservation function is obviously better than that of the thick wall macroporous general foam.
4, the use of tasteless amine catalyst, can adjust the balance of foaming-gel reaction, so that the coating layer of the skin thinning, is conducive to the performance of the cold storage insulation board function.
5, do not use the general polyester polyol, these operation measures have achieved good results, in several cold storage comparison, the use of the white material cold storage than other manufacturers use white material cold storage power consumption is significantly lower.
2. cold storage insulation board foam stability:
Cold storage polyurethane foam material in the temperature changes dramatically or for a long time at low temperature scale changes (usually shortened), scale changes often said that the foam burst or fall off, these will inevitably affect the normal use of cold storage, not only to often imitate the function of inspection, but also pay attention to the operation of the choice of data.
3. cold storage insulation board use life:
In addition to the fundamental function of the initial polyurethane foam, the functional aging of the foam is also an important goal. When the white fabric is produced, some polyester materials have good foam resistance and impact resistance on the surface, but they will become brittle after being used in the freezer for a period of time and cannot withstand impact and bruises.
In addition, some polyester structure of the foam hydrolysis resistance is poor also affect the service life of the foam; the polyether structure, the initial slightly brittle, but generally a few days after the brittle disappeared, after a long time stable cold storage insulation board data function.
Well, today's editor will introduce it here. If you have anything else you don't understand, you can call us for advice, and you will definitely be helped. In addition, our company is a manufacturer of cold storage insulation boards. There is no middleman. There are certain advantages in terms of price. You need to remember to consult. I wish you a happy life and a good mood every day!
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