The research and manufacture of DU series aqueous polyurethane finishing agent

摘要

DU series aqueous polyurethane finishing agents have been researched and synthesized by inner emulsification. Its principle is the macromolecular polybasic alcohol reacts with tolylene diisocyanate, forming the prepolymer of the isocyanated polyurethane at the end group, then reacts with hydrophilic chain-growing agent, crosslinking agent, forming polyurethane molecule which contains the hydrophilic group and the slightly cross-linked structure.