SF/CMCS的制备及其在老化丝绸加固中的应用  

Preparation of SF/CMCS and its applications in reinforcement of aged historic silk

作　　者：吕斌 薛璐瑶 高党鸽 魏彦飞 马建中 LYU Bin;XUE Luyao;GAO Dangge;WEI Yanfei;MA Jianzhong(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;Xi'an Key Laboratory of Green Chemicals and Functional Materials,Xi'an 710021,Shaanxi,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;Jingzhou Preservation Centre of Cultural Relics,Jingzhou 434020,Hubei,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]西安市绿色化学品与功能材料重点实验室,陕西西安710021 [3]陕西科技大学轻化工程国家级实验教学示范中心,陕西西安710021 [4]荆州文物保护中心,湖北荆州434020

出　　处：《精细化工》2023年第9期1952-1958,共7页Fine Chemicals

基　　金：国家重点研发计划项目(2019YFC1520404);陕西省“高层次人才特殊支持计划”青年拔尖人才项目;陕西省创新能力支撑计划资助项目(2021TD-16)。

摘　　要：为了对脆弱丝绸文物进行保护修复,延长其寿命,以丝素蛋白(SF)、羧甲基壳聚糖(CMCS)为原料,谷氨酰胺转氨酶为交联剂,制备了丝素蛋白/羧甲基壳聚糖复合材料(SF/CMCS),并将其应用于老化丝绸的加固保护。利用FTIR、XRD、测色配色分光光度计、SEM及伺服高低温控制拉伸机对老化丝绸加固前后效果进行了表征,并对老化丝绸加固前后对大肠杆菌和金黄色葡萄球菌的抗菌性进行了测试。结果表明,与老化丝绸相比,SF/CMCS加固丝绸的颜色无明显变化,物理机械性能有明显提升,抗张强度和断裂伸长率分别提升了319.72%、114.56%。老化丝绸背面有细菌繁殖,SF/CMCS加固丝绸背面并无细菌繁殖,表明SF/CMCS加固丝绸对大肠杆菌、金黄色葡萄球菌的抗菌性有一定提升。In order to protect and repair fragile historic silk fabric and prolong their lifespan,silk fibroin(SF)/carboxymethyl chitosan(CMCS)composites(SF/CMCS)was prepared from SF and CMCS with transglutaminase as cross-linking agent,and applied for the reinforcement protection of aged silk.The aged silk fabric before and after treatment by the composite obtained were characterized by FTIR,XRD,color matching spectrophotometer,SEM and servo high and low temperature control tensile tester as well as analyzed for their antibacterial properties against Escherichia coli and Staphylococcus aureus to investigate the influence of the reinforcement.The results showed that,compared with the untreated aged silk,SF/CMCS reinforced silk exhibited no obvious change in color,significant improvement in the physical and mechanical properties,and an increase by 319.72%and 114.56%in the tensile strength and elongation at break,respectively.Moreover,the SF/CMCS reinforced silk displayed no bacterial reproduction on the back in comparison to the untreated control,indicating that SF/CMCS treatment could improve the antibacterial activity of Escherichia coli and Staphylococcus aureus to a certain extent.

关 键 词：丝素蛋白 羧甲基壳聚糖 丝绸文物 功能材料 

分 类 号：TB332[一般工业技术—材料科学与工程]