2-4 μm White Molecular Sieve Powder 3a for Eliminate Bubbles and Moisture

Product Description.

Molecular sieve activated powder is obtained by roasting its original powder at high temperature. During this process, the original powder loses most of its moisture, so it has strong activity and can be directly used in production as an adsorbent with selective adsorption.

The emergence of molecular sieve activated powder effectively solves the problem of removing moisture in various applications, and is widely used in the production of polymers such as polyurethane. It can absorb impurities such as moisture that affect product quality without changing the physical and chemical properties of the product itself. It can also be added as a selective adsorbent to a specific polymer or coating production process to adsorb CO2, H2S and other gases produced during the production process. Some molecular sieve activation powders can even be used as desiccants in insulating glass composite strips, or as catalyst carriers.

1. Specification.

2. Typical Application:

Application of molecular sieve activation powder for coatings:

In certain paint and coating systems, moisture introduced into the raw materials (solvents, pigments, additives) can have adverse effects. For example, in metal and zinc-rich coatings (marine coatings for oil tankers and speedboats), water reacts with extremely active metal pigments zinc and aluminum to generate hydrogen gas, which will cause excessive pressure in the tank and, in extreme cases, cause leakage.

Molecular sieve activation powder for coatings is an efficient and non-toxic dehydrating agent, which is widely used in one-component and two-component polyurethane systems to inhibit the reaction of isocyanate and free water to generate bubbles. At the same time, due to the excellent dispersibility of molecular sieve activated powder, it can be mixed with commonly used polyols, polyethers and isocyanates, and can effectively prolong the curing time of the product.

FAQ

1). What is the difference between molecular sieve activated powder and original powder?

---The difference is that the original powder is the raw material of molecular sieve activated powder. The original powder is inactive and cannot absorb water.

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