Activated Molecular Sieve Powder
Benefits of Activated Molecular Sieve Powder
20+ years activated molecular sieve powder manufacturer
High Adsorption Capacity
The molecular sieve powder has a high specific surface area and abundant microporous structure, enabling rapid dehydration of products. The static water adsorption of powder molecular sieve can up to 23%-27%.
Eliminate Bubbles
By removing moisture, the reaction between water and isocyanate to form carbon dioxide is blocked, thereby suppressing bubble formation.
Improving Product Quality
Removing moisture and bubbles, prolonging the cure time of two-component polyurethanes, improving their hardness and bonding strength.
Products Description
Activated Molecular Sieve Powder is made by adding special additives to molecular sieve synthetic powder and calcining at high temperature. It has good dispersibility, fast adsorption speed, strong activity, can reduce moisture, eliminate bubbles, remove odor, and improve material uniformity and strength. Packing Mall activated molecular sieve powder includes many types, such as 3A/4A/5A/13X activated molecular sieve powder and modified activated molecular sieve powder.
Activated Molecular Sieve Powder Applications
How to Solve the Problem of Adhesive Moisture and Bubbles?
During the polyurethane adhesive production process, trace amounts of moisture react with isocyanates to generate carbon dioxide gas, which can cause bubbles in the product, compromise bond strength, and even lead to surface roughness and performance degradation. In the production of two-component polyurethanes, powder molecular sieve is added to either component A or component B. This molecular sieve powder, with their high surface area and rich microporous structure, can quickly reduce the moisture content of polyether polyols. By removing moisture, they block the reaction between water and isocyanates to generate carbon dioxide, thereby suppressing bubble formation.
About Our Factory
Super Packing Mall is a leading manufacturer specializing in molecular sieve, activated molecular sieve powder, activated alumina, ceramic ball and tower packing. PM has been established in the industry since 2002, we have been focusing on building an one-stop chemical packing e-commerce platform, aiming at satisfying customers comprehensive chemical tower packing demand and providing fast full service. And we not only promote qualified product, also emphasize on providing professional technique and good service.
Years of Industry Experience
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FAQ
Q: What is the difference between activated molecular sieve powder and defoamer?
A: Activated molecular sieve powder uses internal channels for physical adsorption to absorb excess water in the polyurethane system to block the isocyanate reaction. At the same time, PM Zeolite 5A Powder and Zeolite 13X Powder can also directly adsorb carbon dioxide gas to play a defoaming role.
The principle of defoamer is to break the balance of foam stability. The defoamer penetrates into the colloidal foam thin layer and forms a monomolecular film, which reduces its adhesion and makes it easy for the thin layer to break, thereby breaking the pores.
Q: What is the main role of activated molecular sieve powder?
A: Molecular sieve powder is mainly used in polyurethane products, which can remove moisture, eliminate bubbles, remove odors, extend the curing time, improve material uniformity and absorb exhaust gas.
Q: What is the recommended amount of activated molecular sieve powder to be added?
A: Usually, the addition ratio is 2-6%. The amount of activated molecular sieve powder to be added is determined according to the trace amount of water that needs to be removed in the system. The static water adsorption is ≥24%, which means that under certain conditions, the amount of water that the activated powder can absorb is 24% of its own weight.
Q: Which adhesive are suitable for using activated powder molecular sieve?
A: It can be used for any product where trace moisture in the glue will affect the properties of the product. If you use traditional dehydration equipment, the entire dehydration process takes a long time. You can also choose activated molecular sieve powder to speed up the dehydration process.
Q: What is activated molecular sieve powder adsorbent used for?
A: Activated molecular sieve powder desiccant is widely used for polyurethane adhesives, sealants, electronic potting glue, AB glue, coating, painting, battery structural glue, new energy automotive body adhesives, insulating glass strip, building material adhesives, aluminium honeycomb panels, PU plastic track.