Novel multifunctional papers based on chemical modified cellulose fibers derived from waste bagasse

Most technologies to produce multifunctional paper involved the defect of poor uniformity and stability. Herein, a high stability multi-functional cellulose-based paper was developed via a multiple chemical modification derived from waste bagasse. Firstly, the acetoacetyl groups was anchored on the surface of bagasse cellulose fibers by a heterogeneous transesterification. Then, paper was made based on these modified fibers. The fluorophore and gentamicin sulfate (Gen) were bonded in-situ to the paper through Hantzsch reaction and the form of enamine bond, respectively. The resulting paper exhibited excellent multifunctional properties, such as fluorescence property, antibacterial property and hydrophobic property. These properties are very stable to external environments. In addition, relatively mild surface modification has no obvious effect on fibers and shows similar whiteness and stiffness properties as that of the CAA paper. Thus, these novel functional papers held great potential for many fields such as food packaging, anti-counterfeiting, and other specialty papers.