Classroom on basic knowledge of polyurethane (PU)

The full name of polyurethane is polyurethane Carbamate is a general term for macromolecular compounds containing repeating carbamate groups on the main chain. It is formed by the addition polymerization of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compounds. In addition to urethane, polyurethane macromolecules can also contain ether, ester, urea, biuret, allophanate and…