木浆纤维素/聚丙烯腈/硝酸银抗菌纤维的制备及性能  

Preparation and properties of wood pulp cellulose/polyacrylonitrile/AgNO_(3)antibacterial fibers

作　　者：宋俊[1] 邵程浩 李君炜 石宇飞 SONG Jun;SHAO Chenghao;LI Junwei;SHI Yufei(School of Material Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津工业大学学报》2023年第5期1-6,共6页Journal of Tiangong University

基　　金：国家重点基础研究发展计划资助项目(2014CB660813)。

摘　　要：为了拓展抗菌纳米纤维在医疗敷料领域的应用,首先采用N,N-二甲基乙酰胺(DMAc)/氯化锂(LiCl)溶剂体系来溶解木浆纤维素和聚丙烯腈(PAN),并加入硝酸银(AgNO_(3))作为抗菌剂,制备了纤维素/PAN/AgNO_(3)(DMAc/LiCl)纺丝溶液,通过静电纺丝技术纺制出抗菌纳米纤维,并对纤维的形貌、元素组成、结晶性、化学结构、热性能及抗菌性能进行了表征分析。结果表明:当AgNO_(3)的质量分数(即占纺丝液中溶质总质量的百分比)为2%时,纤维素/PAN/AgNO_(3)纤维的微观形貌最佳;在纤维表面均匀分布的抑菌组分主要为AgCl;抗菌纤维对大肠杆菌和金黄色葡萄球菌均具有很好的抑制作用,抑菌率都达到了98%以上。In order to expand the application of antibacterial nanofibers in the field of medical dressings,the DMAc/LiCl solvent system was used to dissolve the wood pulp cellulose and polyacrylonitrile(PAN),and silver nitrate(AgNO_(3))was added as the antibacterial agent to prepare cellulose/PAN/AgNO_(3)(DMAc/LiCl)spinning solution.Then,the antibacterial fibers were spun by electrospinning technology,and the morphology,element composition,crystallinity,chemical structure,thermal properties and antibacterial properties of the fibers were analyzed.The results show that when the mass fraction of AgNO_(3)(i.e.the percentage of total solute mass in the spinning solution)is 2%,the microscopic morphology of cellulose/PAN/AgNO_(3)fiber is the best;the antibacterial component evenly distributed on the fiber surface is mainly AgCl;the antibacterial fiber had a good inhibitory effect on Escherichia coli and Staphylococcus aureus,and the antibacterial rate reached more than 98%.

关 键 词：木浆纤维素 聚丙烯腈(PAN) 硝酸银 抗菌纤维 静电纺丝 抗菌性能 抑菌率 

分 类 号：TS102.5[轻工技术与工程—纺织工程] TQ342.8[轻工技术与工程—纺织科学与工程]