Valorization of Alkaline Peroxide Mechanical Pulp by Metal Chloride-Assisted Hydrotropic Pretreatment for Enzymatic Saccharification and Cellulose Nanofibrillation

There is a growing interest in preparing membrane materials particularly with antibacterial surface and high mechanical strength from natural resources. In this work, to fabricate cellulose membrane with high tensile strength and antibacterial property, surface amination of regenerated cellulose (RC) membranes were studied. Four aminosilanes at different concentrations and the effects of alkoxyl quantity, alkoxyl chain length, and aminoalkyl chain length of aminosilanes on membrane performance were explored. The results indicated that all membranes were successfully grafted by aminosilanes with different grafting yield. The grafted RC membranes had high mechanical strength of 65.2-93.5 MPa with high hydrophobicity and thermal stability.