戊二醛交联丝素蛋白/海藻酸钠复合膜的制备及表征  

Preparation and characterization of glutaraldehyde cross-linked filipin protein/sodium alginate composite membrane

作　　者：曾字强 鲁康俊 颜超 ZENG Ziqiang;LU Kangjun;YAN Chao(College of Textile Science and Engineering,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,武汉430200

出　　处：《纺织工程学报》2024年第3期1-8,共8页JOURNAL OF ADVANCED TEXTILE ENGINEERING

基　　金：教育厅科研计划项目(Q20171608);湖北省先进纤维材料综合型技术创新平台开放课题(XC202407)。

摘　　要：为探究戊二醛(GA)对丝素-海藻酸钠复合体系的影响,以流延法制备了丝素-海藻酸钠复合膜。以FT-IR、XRD、SEM对复合膜的结构与形貌进行表征,测试了复合膜的吸水保水性、透湿透气性、可生物降解性。结果表明:戊二醛的加入可以提升材料约871%的吸水性、20%的保水性,降低材料的透湿透气性以及延长生物降解的时长。根据对材料表观形貌及结构的分析,戊二醛可以诱导丝素Silk Ⅱ转变,减少材料的孔隙结构,生成更多席夫碱中间体。该研究结果可以为蛋白-多糖复合体系的制备提供理论依据。In order to investigate the effect of glutaraldehyde(GA)on the composite system of sericin-sodium alginate,the composite film of sericin-sodium alginate was prepared by casting method.The structure and morphology of the composite membrane were characterized by FT-IR,XRD and SEM,and the water absorption and water retention,moisture permeability and air permeability,and biodegradability of the composite membrane were tested.The results showed that the addition of glutaraldehyde could enhance the water absorption and water retention of the material by about 871%and 20%,and reduce the moisture permeability and air permeability as well as prolong the biodegradation time of the material.According to the analysis of the apparent morphology and structure of the material,glutaraldehyde can induce the Silk II transformation of filipin,which will reduce the pore structure of the material and generate more Schiff base intermediates.The results of this study can provide a theoretical basis for the preparation of protein-polysaccharide composite systems.

关 键 词：丝素 海藻酸钠 戊二醛 流延法 可生物降解 

分 类 号：TB332[一般工业技术—材料科学与工程]