Progress in polyurethane synthesis and its application
Polyurethane is an important synthetic polymer material,which is widely used in various fields and has been attracting attention in recent years.Therefore,the synthesis and application research of polyurethane materials will be a major development trend and research direction in the future.This article reviewed the re-search progress of polyurethane synthesis methods,such as emulsion method,prepolymer method,acetone method,lignin method.The application of polyurethane in various fields such as foam materials,elastomers,waterproof coatings,adhesives,and biomedical materials was also discussed.It also provides an outlook on the future research and application of polyurethane materials.