不同脱胶方法对再生丝素膜降解性的影响  

Effect of Different Degumming Methods on Degradability of Regenerated Silk Fibroin Film

作　　者：陈静 宁晚娥[1] 黄继伟[1,2] 梁苏平 牛翔宇 林海涛[1] Chen Jing;Ning Wan'e;Huang Jiwei;Liang Suping;Niu Xiangyu;Lin Haitao(College of Biological and Chemical Engineering,Guangxi University of Science and Technology,Liuzhou Guangxi 545006,China;College of Textile and Clothing Engineering,Soochow University,Suzhou Jiangsu 215123,China)

机构地区：[1]广西科技大学生物与化学工程学院,广西柳州545006 [2]苏州大学纺织与服装工程学院,江苏苏州215123

出　　处：《蚕业科学》2022年第5期458-466,共9页ACTA SERICOLOGICA SINICA

基　　金：国家自然科学基金项目(51763001,51963002);广西自然科学基金项目(2018GXNSFAA281280);柳州市科技计划项目(2019DH10602)。

摘　　要：再生丝素材料的降解性是决定其应用价值的重要参数之一,影响再生丝素材料降解性的因素涉及再生丝素材料加工的各个阶段,其中蚕丝脱胶是再生丝素材料制备的最初阶段。采用酸法脱胶和碱法脱胶对蚕丝进行脱胶后制备再生丝素膜,利用傅里叶红外光谱(FTIR)、X射线衍射(XRD)、热重分析等对再生丝素膜的结构、物理性能和降解性能进行表征,从而探讨蚕丝脱胶对再生丝素材料降解速率的影响。结果显示:相对于碱法脱胶,酸法脱胶对再生丝素蛋白分子质量的破坏较小,所制备的再生丝素膜具有更好的力学性能,而且降解速率更慢。这为通过采用不同脱胶方法调控再生丝素材料的降解性能提供了参考依据。The degradability of regenerated silk fibroin material is one of the important parameters of its application value. The factors affecting the degradability of regenerated silk fibroin material involve all stages of the processing of regenerated silk fibroin material, among which the degumming of silk was the initial stage of the preparation of regenerated silk fibroin material. The regenerated silk fibroin film was prepared by silk after acid degumming and alkali degumming. The structure, physical properties and degradation properties of the regenerated silk fibroin film were characterized by Fourier transfer infrared spectrum(FTIR), X-ray diffraction(XRD) and thermogravimetric analysis, so as to explore the effect of silk degumming on the degradation rate of the regenerated silk fibroin material. The results showed that compared with alkali degumming, acid degumming had less damage to the molecular mass of regenerated silk fibroin protein, and the regenerated silk fibroin film had better mechanical properties and slower degradation rate. The results provide a reference for regulating the degradability of regenerated silk fibroin materials by different degumming methods.

关 键 词：蚕丝 碱法脱胶 酸法脱胶 脱胶剂 再生丝素膜 降解性 

分 类 号：S886.9[农业科学—特种经济动物饲养] R318.08[农业科学—畜牧兽医]