日光驱动抗菌纳米纤维素的制备与性能研究  

Preparation and Properties of Sunlight-Driven Antibacterial Nanocellulose

作　　者：石泰 卢麒麟 李永贵 刘正江 施宋伟 李天源 SHI Tai;LU Qi-lin;LI Yong-gui;LIU Zheng-jiang;SHI Song-wei;LI Tian-yuan(College of Textile and Light Industry,Inner Mongolia University of Technology,Hohhot 010080,China;Fujian Key Laboratory of New Novel Functional Textile Fibers and Materials,Fuzhou 350108,China;Clothiing and Design Faculty,Minjiang University,Fuzhou 350108,China;Fujian Changyuan Textile Co.,Ltd.,Fuzhou 350004,China;Fujian Huafeng New Material Co.,Ltd.,Putian 351100,China)

机构地区：[1]内蒙古工业大学轻工与纺织学院,内蒙古呼和浩特010080 [2]福建省新型功能性纺织纤维及材料重点实验室,福建福州350108 [3]闽江学院服装与艺术工程学院,福建福州350108 [4]福建长源纺织有限公司,福建福州350004 [5]福建华峰新材料有限公司,福建莆田351100

出　　处：《纤维素科学与技术》2023年第1期42-49,共8页Journal of Cellulose Science and Technology

基　　金：福建省科技创新重点项目(2021G02011);福建省对外合作项目(2022I0045);福建省自然科学基金(2021J011034);南平市“揭榜挂帅”科技重大项目(N2021A004)。

摘　　要：为赋予纳米纤维素抗菌功能,选用3,3’,4,4’-二苯甲酮四甲酸二酐(BTDA)作为光敏剂制备光驱动抗菌纳米纤维素,通过BTDA中羧基与纳米纤维素的羟基反应生成酯键,以此制备出具有日光驱动抗菌性能的抗菌纳米纤维素。考察了BTDA添加量、反应温度、反应时间对产物抗菌性能的影响,确定抗菌纳米纤维素的较佳制备工艺为:纳米纤维素(固含量1.26%)10 g、BTDA添加量0.3 g、反应温度140℃、反应时间240 min。由此制备的抗菌纳米纤维素长度在200~300 nm,直径在25~50 nm,结晶度为84.6%,在日光照射条件下对金黄色葡萄球菌及大肠杆菌的抑菌率在90%以上。纳米纤维素本身物理性能、化学性能较为优异,生物相容性好,本研究拓宽了光驱动抗菌材料的应用。In order to endow nanocellulose with antibacterial function,benzophenone-3,3’,4,4’-tetracarboxylic dianhydride(BTDA)was used as a photosensitizer to prepare light-driven antibacterial nanocellulose.The ester bond was formed by the reaction of carboxyl group in BTDA with the hydroxyl group of nanocellulose to prepare antibacterial nanocellulose with sunlight-driven antibacterial properties.The effects of BTDA addition,reaction temperature and reaction time on the antibacterial properties of the product were investigated.The rational preparation process of antibacterial nanocellulose was determined as follows:Nanocellulose(solid content 1.26%)10 g,BTDA addition 0.3 g,reaction temperature 140℃and reaction time 240 min.The prepared antibacterial nanocellulose has a length of 200~300 nm,a diameter of 25~50 nm,and the crystallinity of 84.6%.The antibacterial rate of Staphylococcus aureus and Escherichia coli was more than 90%under sunlight irradiation.Nanocellulose has excellent physical and chemical properties and good biocompatibility.This study broadens the application of light-driven antibacterial materials.

关 键 词：抗菌纳米纤维素 BTDA 日光驱动 抗菌 光敏活性 

分 类 号：TS195.2[轻工技术与工程—纺织化学与染整工程]