Antibacterial modification of Lyocell fiber: A review. (15th December 2020)

• Record Type: Journal Article
• Authors: Edgar, Kevin J.; Zhang, Huihui
• Is Part Of: Carbohydrate polymers. Volume 250(2020)
• Publication Date: 2020-12-15
• Subjects: Lyocell fiber -- Cellulose fiber -- Cellulose solvent -- Antibacterial modification -- Antimicrobial activity; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2020.116932
• Languages: English
• ISSNs: 0144-8617

Abstract

Graphical abstract: Highlights: Research progress of antibacterial modification of Lyocell fiber reviewed. Characteristics, advantages, drawbacks of antibacterial Lyocell preparation methods described. Remaining issues related to antibacterial Lyocell preparation discussed, future prospects proposed. Abstract: As the most successful regenerated cellulose fiber developed in recent decades, Lyocell has attracted much attention due to its useful properties, simple manufacturing process, and recyclable solvent. However, Lyocell's lack of antibacterial properties limits its application in medical and health fields. Antibacterial modification of Lyocell fiber can be achieved by three general approaches: physical blending, chemical reaction, and post-treatment. Physical blending methods introduce antibacterial agents directly into the spinning dope. In chemical reaction methods, functional groups of the antibacterial additives are grafted or crosslinked into Lyocell fibers, thereby imparting antimicrobial properties. In post-treatment methods, antibacterial additives are deposited on Lyocell fiber surfaces by physical coating, padding, or impregnation processes. We organize our review of antibacterial modification of Lyocell fibers by these preparation methods. Some of the modified Lyocell fibers are reported to exhibit improved antimicrobial activity against various bacteria and fungi, indicating promise for application in medical or hygienic products.