In general, non-reactive polyurethane surfactants and reactive polyurethane surfactants work differently in the reaction system. Non-reactive polyurethane surfactant refers to a type of polyurethane surfactant that does not chemically bond with other components in the system when it acts on a specific system.

Water-based polyurethane surfactants mainly include anionic types with carboxyl groups and sulfonate groups introduced into the polyurethane macromolecular chain, cationic types of quaternary ammonium salts, and non-ionic types such as hydroxyl and polyethylene glycol. The hydrogen bond formed between them and the electrostatic interaction between them can obtain stable water-based polyurethane surfactants[]. The raw materials for the preparation of waterborne polyurethane mainly include macromolecular polyols, polyisocyanates and chain extenders. Commonly used polyols are generally polyethers, polyester diols, and sometimes polyether triols, low-branched polyester polyols, etc. The chain extenders include small molecular dihydric or polyols or amines, among which the The key to the technology is the introduction of hydrophilic groups.