| Abstract:Black liquor is mainly produced by the chemical pulping or chemical pulping process,and the main component is lignin. Lignin is rich in carbon elements and functional groups such as phenolic hydroxyl groups and alcohol hydroxyl groups,but also can be doped into other materials to improve its performance,and has a significant prospect for resource utilization. In this paper,the source,characteristics and extraction methods of black liquor lignin are introduced,the research progress of black liquor lignin and its derivatives in the preparation and application of functional materials is discussed in detail,and the existing problems and potential development directions of black liquor lignin materials are summarized and prospected,in order to provide a new way for the resource utilization and high-value application of black liquor lignin-based derived materials. |