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Insulating glass molecular sieve details

Insulating glass molecular sieve is a crystalline silica-aluminate mineral spherical material, for keeping the hollow cavity dry plays a very important role. Because the molecular sieve can effectively adsorb the water and residual organic matter in the hollow layer of glass, so that even at low temperatures, insulating glass still maintains a clean and transparent, to avoid condensation, fogging phenomenon, so the quality of the molecular sieve to a large extent determines the performance of the insulating glass. At the same time, molecular sieve can also fully reduce the pressure difference between inside and outside of the insulating glass, solving the problem of twisting and crushing caused by the expansion or contraction of insulating glass due to air pressure, which can prolong the service life of insulating glass.

What are the types of molecular sieve?

Molecular sieve is a synthetic hydrated silica-aluminate (vesicular zeolite) or natural zeolite with the role of screening molecules, whose pore size is comparable to the general size of molecules, allowing only molecules with diameters smaller than the pore size to enter. In addition to adsorption of water gas, other gases can also be adsorbed. Molecular sieves can be divided into A-type, X-type, Y-type molecular sieves and so on according to the proportion of silica-aluminum and crystalline structure; according to the size of molecular sieve aperture, it is divided into common 3A molecular sieve, 4A molecular sieve and other models.

The radius of water molecules is smaller than the aperture of 3A molecular sieve, which can be adsorbed by 3A molecular sieve, and the molecular radius of oxygen and nitrogen is larger than the aperture of 3A molecular sieve, which can not be adsorbed by 3A molecular sieve. However, 4A molecular sieve can adsorb water, oxygen, nitrogen, and even more favorably adsorb nitrogen with larger polarity.

Insulating glass assembly molecular sieve demand is adsorption of water in the spacer layer gas, not adsorption of other gases in addition to water vapor, otherwise it will form the pressure difference between the spacer layer, resulting in glass deformation, affecting the view or even affecting the safety, so the most suitable choice for conventional insulating glass is 3A molecular sieve.

Notes on the use of molecular sieve

  1. The molecular sieve for insulating glass should be sealed and stored before use, and if the package is found to be damaged, it can not be used. If the package has been opened and not used up, it can not be packaged and then used.
  2. the filling operation should be carried out in a dry and dust-free room.
  3. It is forbidden to expose the molecular sieve in the air for a long time after opening the package, from filling to gluing and closing should be completed continuously in a short time. The aluminum spacer frame filled with molecular sieve should be synthesized into insulating glass within 45 minutes.
  4. There shall be no air leakage on all sides of the sealed insulating glass.
  5. After the insulating glass is glued, it is strictly prohibited to be exposed to sunlight.
  6. The molecular sieve filling machine is preferably airtight.

Truemei insulating glass 3A molecular sieves, with hard and smooth surface, good abrasion resistance, high strength, low capacity, good adsorption capacity, no peeling, breakage and falling powder phenomenon during transportation and use. Instantaneous warming, faster adsorption rate, even if the ambient temperature fluctuates from -40 to 40℃, the adsorption capacity can still reach more than 20%; capable of deep drying of the glass to ensure that the leakage point is below -60℃.

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