Preparation and Application of Environment-friendly Antibacterial Cellulose-based Nonwovens
2022年4月7日
Abstract: The paper aims to effectively improve the antibacterial performance of bio-based cellulose nonwovens to expand its application. In doing so, cannabidiol was synthesized as an antibacterial agent by one-step method from olivetol and (1S,4R)-p-Menth-2,8-dien-1-ol. Thereby completed the antibacterial modification of cellulose nonwovens, and then characterized and analyzed the structure and properties of antibacterial agents and nonwovens. The FTIR, 1H-NMR and XPS results showed that cannabidiol was successfully synthesized based on Friedel-Crafts alkylation, and then was introduced to the surface of cellulose nonwovens through hydrogen bonding. SEM, TG-DTG and tensile test results showed that the modification process does not destroy the inherent structure of cellulose nonwovens, and the introduction of cannabinoids can promote the thermal stability and mechanical properties at the same time. The antibacterial property was determined by colony counting method. The results showed that the modified cellulose nonwovens had obvious bacteriostatic effects on E.coli and S.aureus, and the bacteriostatic rates of E.coli and S.aureus reached 79% and > 99%, respectively.
Key words: cannabidiol; cellulose; nonwovens; antibacterial; functional modification
