Views: 0 Author: Site Editor Publish Time: 2024-12-25 Origin: Site
The influence of moisture on two-component polyurethane is mainly reflected in the following aspects:
1. Reduced reaction speed: Moisture reacts with the isocyanate component, reducing the content of the effective component and affecting the curing speed.
2. Reduced hardness: Moisture participates in the curing reaction, and the resulting product has a lower hardness, affecting product performance.
3. Bubble generation: Moisture reacts with the isocyanate component to generate carbon dioxide gas, forming bubbles, affecting the appearance and performance of the product.
4.Reduced bonding strength: Moisture affects the bonding properties of two-component polyurethane and reduces the bonding strength.
Molecular sieve powder is an adsorbent with a microporous structure and high specific surface area, which can effectively adsorb and remove impurities such as moisture and gas. Chemxin has been focusing on the research and development and production of it over 22 years, providing a new solution for the elimination of moisture and bubble suppression in two-component polyurethane.
Contact us to learn more.
