In recent years, the development and utilization of chitosan, a natural resource, has been active at home and abroad. Since the structure of chitosan is similar to that of cellulose, the acidic medium used for dissolution is similar to the acidic medium at the time of papermaking. Foreign countries attach great importance to the research on the application of chitosan in papermaking, but basically use the original chitosan solution directly as a reinforcing agent, so the effect is poor and the amount is large. Reports on modified chitosan as a reinforcing agent are more advanced.
Through the principle of Mannich reaction, the polyacrylamide is cross-linked with chitosan to obtain a chitosan-polyacrylamide crosslinker (c.C.APAM), thereby enhancing the polyacrylamide's reinforcing properties and shell. The enhanced characteristics of glycans are combined organically to exert synergistic effects.The preparation, structure characterization and applied experimental studies of the chitosan-polyacrylamide cross-linkers were carried out in this paper, and satisfactory results were obtained.
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