N—Cl型卤胺抗菌材料紫外稳定性研究进展

Research progress on UV stability of N—Cl haloamine antibacterial materials

摘要:

N—Cl型卤胺抗菌剂具有高效、快速、稳定、安全、可再生的抗菌性能，由其开发的抗菌材料广泛应用于医疗卫生、纺织、水过滤等领域。然而，N—Cl型卤胺抗菌材料在应用过程中，紫外光的作用会使材料上的N-Cl键或抗菌剂与材料基质的连接共价键断裂，导致活性氯的含量降低，进而引起其抗菌性能的下降。如何提高卤胺抗菌材料的紫外稳定性，受到了国内外学者的重点关注。该文首先阐述了N—Cl型卤胺抗菌剂的种类和造成N—Cl型卤胺抗菌材料中活性氯含量降低的两种因素；然后，综述了通过改变卤胺前驱体结构，引入纳米TiO2、纳米ZnO、AgCl无机粒子和有机紫外吸收剂来提高卤胺紫外稳定性的研究进展；最后，讨论了该研究所面临的问题和挑战，并对未来进行了展望。

Abstract:

The N—Cl type haloamine antibacterial agent has high-efficiency, fast, stable, safe, and renewable antibacterial properties. The antibacterial materials developed by it are widely used in medical and health, textile, water filtration and other fields. However, during the application of the N—Cl type haloamine antibacterial material, the action of ultraviolet light will break the N—Cl bond on the material or the covalent bond between the antibacterial agent and the material matrix, resulting in a decrease in the content of active chlorine, which in turn causes a decrease in its antibacterial performance. How to improve the UV stability of halamine antibacterial materials has attracted the attention of scholars at home and abroad. This paper first describes the types of N—Cl halamine antibacterial agents and the two factors that cause the decrease of the chlorine content; then, it reviews the research on improving the UV stability of the halogen amine by changing the structure of the halogen amine precursor and introducing nano-TiO2, nano-ZnO, AgCl inorganic particles and organic UV absorbers; finally, the problems and challenges faced by the institute are discussed, and its future development trend is prospected.