Interfacial Colloidal Performance and Adhesive Strength of an Environmentally Friendly Cellulose-microcrystal-based Adhesive Substance

As one of the high-value and environmentally friendly chemical products, cellulose-based adhesive substance has been widely developed recently due to its extraordinary adhesion, interfacial flowability and high stability, along with low-impact side effects, outstanding degradability and biocompatibility. Also, microcrystalline-shaped cellulose has been fully exploited in functinalizing modification engineering. To eliminate the gap in application of cellulose-ether-based adhesion, we fabricated a new category of optimized cellulose sulfate product based on a system of analysis of key experimental factors: solvent pretreatment, degree of esterification, type and morphology of cellulose. Additionally, we focused on an all-round family of performance test of our product, containing characterization of structural and morphological features, test of water-based properties and inspection of adhesion behaviour. Within, the effect of adhesive strength in various solvents and under various conditions have been highlighted. The whole result shows a generally feasible synthetic approach and splendid performance as a novel green adhesive. The optimal design and synthesis of cellulose sulfate is verified to be eco-friendly, easy for optimization and greatly reproducible. Also, the product is shown to have tiptop viscosity, great adhesive strength, and colloidal potential like film forming due to the cross-linking network in the water-based environment. Finally, the product are demonstrated to be outstanding and widely applicable in mechanical strength. Specifically, it shows strong adhesion on different materials (metal, timber and glass) and tunability related to the kinds of additives. The addition of metallic salts and polymeric amine can evidently boost its adhesive strength. Overall, optimal analysis of cellulose sulfate adhesive on a microscale has forecasted great potential in low-carbon, fine-tunable, adhesive-related industry.