Molecular Sieve Activated Powder Question And Answer

- May 01, 2019-

1. What are the raw materials and manufacturing processes of molecular sieve activated powder?

The main raw material of the molecular sieve activated powder is an aluminosilicate. 3A is sodium potassium aluminosilicate, 4A is sodium aluminosilicate, and 5A is sodium calcium aluminosilicate. The main production method is that the original powder is activated by high temperature to form a molecular sieve activated powder.


2. The main role of molecular sieve activated powder (what is the difference between defoamer)?

Answer: The molecular sieve activated powder is the excess water in the absorption system. The defoaming agent is defoaming and does not absorb water.

The principle of the defoamer is to break the balance of foam stability and thereby break the cells. Molecular sieve activated powder absorbs water and is used to break the balance between water phase and oil phase to defoam.


3. Why is the bigger the price, the more expensive the price is, why is the price of 4A the lowest?

A: The 4A price is the lowest because 3A and 5A are replaced by 4A.


4. What is the difference between molecular sieve activated powder and raw powder?

Answer: The difference is that the original powder is the raw material of the molecular sieve activated powder. The original powder has no activity and cannot absorb water.


5. Which glue is suitable for using molecular sieve to activate the powder?

A: A trace amount of moisture in the glue can affect the nature of the product.


6. What is the temperature that the molecular sieve activated powder can withstand in the glue?

Answer: There is no problem below 500 degrees. The original molecular sieve powder is at 550 degrees. The high temperature roasting will lose the crystal water. When the temperature is lowered to room temperature, the water will slowly absorb and recover. When the calcination temperature is 900 degrees, the crystal structure is broken and cannot be recovered, so that it has no water absorption. Therefore, the activated powder can withstand temperatures below 500 degrees.


7. What is the recommended addition amount of molecular sieve activated powder?

A: The amount of molecular sieve activated powder added is determined by the amount of water that needs to be removed in the system. The adsorption of static water at 24 means that under ideal conditions, the molecular sieve activated powder can absorb 24% of its own weight.


8. Does the molecular sieve activation powder affect the viscosity of the glue?

Answer: Molecular sieve activated powder does not have the effect of increasing viscosity. The effect on the viscosity of the system is only the effect of other inorganic materials.


9. Can the molecular sieve activated powder be added to the polyol?

A: The A component of the two-component polyurethane is generally a polyester polyol and a polyether polyol, and the molecular sieve activated powder is generally also added to the A component.


10. Will the molecular sieve activated powder retort water, such as in ink?

A: No. Activated powder is also a molecular sieve, which is a static molecular sieve and cannot be regenerated in the system. The adsorption and desorption of molecular sieves are conditional. Desorption requires high temperature and low pressure. In the customer's use, the molecular sieve activated powder forms a homogeneous substance with the resin and does not have desorption conditions. This is also the reason why the activated powder cannot be regenerated. (Resin is one of the materials of some inks).