微米银的制备及其对壳聚糖抑菌性的影响  

Preparation of micron silver and its effect on antibacterial activity of chitosan

作　　者：肖燕 施清岛 王维明[2,3] XIAO Yan;SHI Qingdao;WANG Weiming(Wujiang Fuhua Weaving Co.,Ltd.,Suzhou 215228,China;Department of Textile and Apparel Engineering,Shaoxing University,Shaoxing 312000,China;Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province,Shaoxing 312000,China)

机构地区：[1]吴江福华织造有限公司,江苏苏州215228 [2]绍兴文理学院纺织服装学院,浙江绍兴312000 [3]浙江省清洁染整技术研究重点实验室,浙江绍兴312000

出　　处：《印染》2022年第7期48-51,共4页China Dyeing and Finishing

基　　金：中国博士后科学基金资助项目(2020M681735)。

摘　　要：以抗坏血酸为还原剂制备微米银,并采用不同的方法制备了壳聚糖/微米银复合抗菌剂。探讨了影响微米银粒径的因素,比较了壳聚糖、纳米银、微米银、壳聚糖/微米银复合抗菌剂的抑菌性能。结果表明,为了较好地控制银微粒粒径,抗坏血酸用量应根据硝酸银用量进行调整;较低的反应温度和较强的酸性条件有利于粒径的控制;反应结束后,需快速降低反应体系的温度以防止微粒团聚。微米银可明显改善壳聚糖的抑菌性,且采用复合法制备的壳聚糖/微米银复合抗菌剂的抑菌性优于银离子原位还原法制备的抗菌剂。Micron silver is prepared with ascorbic acid as a reducing agent,and chitosan/micro-silver composite antibacterial agent is prepared by different methods.The factors affecting the particle size of micro-silver are discussed,and the antibacterial properties of chitosan,nano-silver,micro-silver,and chitosan/micro-silver composite antibacterial agents are compared.The results show that the amount of ascorbic acid should be adjusted according to the amount of silver nitrate in order to better control the particle size of silver particles.Lower reaction temperature and stronger acidic conditions are conducive to the control of particle size.After the reaction,it is necessary to quickly reduce the temperature of the reaction system to prevent particle ag⁃glomeration.The antibacterial activity of chitosan can be obviously improved by micro-silver,and the antibac⁃terial activity of chitosan/micro-silver composite antibacterial agents is better than that prepared by silver ion in-situ reduction.

关 键 词：复合抗菌剂 微米银 壳聚糖 抑菌性 

分 类 号：TS195.26[轻工技术与工程—纺织化学与染整工程]