壳聚糖微纳米纤维复合抗菌空气滤材的制备及其性能  

Preparation and properties of chitosan micro-nanofiber composite antibacterial air filter material

作　　者：陈锦苗 李纪伟 陈萌 宁新 崔爱华 王娜 CHEN Jinmiao;LI Jiwei;CHEN Meng;NING Xin;CUI Aihua;WANG Na(College of Textile&Clothing,Qingdao University,Qingdao,Shandong 266071,China;Industrial Research Institute of Nonwovens&Technical Textiles,Qingdao University,Qingdao,Shandong 266071,China;Shangdong Center for Engineered Nonwovens,Qingdao,Shandong 266071,China;Weifang Young Marine Biomaterials Co.,Ltd.,Weifang,Shandong 261000,China)

机构地区：[1]青岛大学纺织服装学院,山东青岛266071 [2]青岛大学非织造材料与产业用纺织品创新研究院,山东青岛266071 [3]山东省特型非织造材料工程研究中心,山东青岛266071 [4]潍坊盈珂海洋生物材料有限公司,山东潍坊261000

出　　处：《纺织学报》2024年第5期19-26,共8页Journal of Textile Research

基　　金：中国博士后科学基金项目(2022M711735);国家自然科学基金青年基金项目(52203060)。

摘　　要：为制备一种绿色环保的抗菌空气过滤材料,在壳聚糖水刺非织造布(CS)的表面静电纺丝一层壳聚糖/聚氧化乙烯(CHI/PEO)纳米纤维膜,得到壳聚糖微纳米纤维复合空气滤材(CHI/PEO-CS)。对制备的CHI/PEO-CS复合膜的微观形貌、力学性能、孔径分布、透气性、过滤性能以及抗菌性能进行了系统研究。结果表明:CHI/PEO纤维直径随着PEO质量分数的增加而增大,当PEO质量分数为0.45%时,CHI/PEO纤维的成纤率最好,对应的纳米纤维直径为146 nm;CHI/PEO-CS对300 nm NaCl气溶胶颗粒的过滤效率可达99.56%,对应压降为63 Pa;当壳聚糖水刺布表面静电纺纳米纤维膜后,CHI/PEO-CS在改善其过滤性能的基础上依旧保持原水刺布较高的强力,且具有较好的透气性能(246.2 mm/s);此外,CHI/PEO-CS对大肠杆菌和金黄色葡萄球菌的拦截率分别为99.97%和99.88%,显著高于纯CS水刺布。Objective In recent years,the rapid development of the economy has been accompanied by increased air pollution,leading to frequent hazy weather conditions.Consequently,particulate matter has emerged as the primary pollutant in outdoor air pollution in our country,posing serious health risks to people.Electrospun nanofiber membranes show promise in air filtration due to their small diameter,three-dimensional porous structure,and large surface area.However,the low strength of these nanofiber membranes limits their large-scale industrial application.In this study,we employ chitosan,known for its antibacterial,biodegradable,and biocompatible properties,to prepare an environmentally friendly antibacterial air filter.Methods The raw materials used were chitosan spunlaced nonwovens(CS),chitosan(CHI),and polyethylene oxide(PEO).By electrospinning technology,a layer of chitosan/polyethylene oxide(CHI/PEO)nanofibers membrane was electrospun on the surface of CS,and then a composite air filter(CHI/PEO-CS)was obtained.Then,the micro-morphology,fiber diameter,pore size distribution,and air permeability of CHI/PEO nanofiber membranes with different PEO concentrations were measured.Finally,the antibacterial properties of the CHI/PEO-CS composite membrane were studied by testing the filtration performance of the composite membrane and selecting the appropriate PEO concentration.Results The average fiber diameter of CHI/PEO fibrous membranes gradually extends from 111 nm to 198 nm with incensing the concentration of PEO.And the average fiber diameter of the CS spunlaced nonwoven fabric is relatively large and about 11.5μm.With the combination of CHI/PEO nanofibers and CS spunlaced nonwoven fabric,an air filtration membrane was constructed,while the electron microscopy images demonstrate a good adherence between CHI/PEO nanofibers and the CS substrate.The combination of CHI/PEO with CS is solely a physical composite,indicating that there are no chemical reactions between the components.When the concentration of PEO varies between

关 键 词：壳聚糖水刺非织造布 纳米纤维 微纳复合 抗菌性能 空气过滤 

分 类 号：TS171[轻工技术与工程—纺织材料与纺织品设计]