Description

1. Amine: Amines are commonly used as blowing agents in the production of PU foam. Blowing agents are substances that generate gas bubbles within the polymer matrix during the foaming process. Amines react with isocyanates (one of the key components in PU foam production) to form carbon dioxide gas, which expands the polymer matrix, leading to the formation of foam. Amines also act as catalysts in the reaction between isocyanates and polyols, promoting the formation of the polyurethane polymer network.
2. Tin Catalyst : Tin catalysts are used in the production of PU foam as catalysts for the reaction between isocyanates and polyols. Tin catalysts promote the urethane formation reaction, which is essential for the crosslinking of the polymer chains and the formation of the polyurethane network. Tin catalysts can help control the reaction rate and the gelation time of the foam, leading to the desired properties such as cell structure, density, and mechanical strength.