脱胶工艺对蚕丝溶解及再生丝素蛋白纤维性能的影响  

Influence of degumming process on the silk dissolution and properties of regenerated silk fibroin fibers

作　　者：吴惠英[1] 

机构地区：[1]苏州经贸职业技术学院,江苏苏州215009

出　　处：《纺织学报》2017年第8期75-80,共6页Journal of Textile Research

基　　金：2014年度江苏省应用基础研究计划项目(BK20141207);2016年苏州市科技计划重点产业技术创新项目(SYG201604)

摘　　要：为探究脱胶工艺与蚕丝溶解及纤维成形之间的关系,讨论了脱胶溶液质量分数、脱胶次数对蚕丝脱胶率、蚕丝表面形貌、丝素溶解度以及再生丝素蛋白纤维结构及性能的影响。结果表明:蚕丝脱胶率随Na_2CO_3溶液质量分数与脱胶次数的增加而增加,当Na_2CO_3溶液质量分数为0.1%、脱胶3次时,脱胶丝素纤维表面出现明显劈裂的微原纤结构,纤维的断裂强度下降了27.6%。丝胶的去除程度对丝素溶解及再生丝素纤维的结构有所影响,溶解时间随Na_2CO_3溶液质量分数、脱胶次数的增加而减少,再生丝素蛋白纤维的力学性能随脱胶程度的加深而降低,当Na_2CO_3溶液质量分数为0.05%、脱胶3次时,再生丝素蛋白纤维直径均匀、表面光滑、结构紧密且力学性能较好。In order to study the relationship between the degumming process and silk dissolution and fiber formation,the influence of the concentration of degumming solution and degumming times on degumming rate,silk surface morphology and fibroin solubility and the structure and properties of regenerated silk fibroin fiber were investigated.The results indicat that the degumming rate increase with the increase of the concentration of degumming solution and degumming times.When the concentration of Na_2CO_3 is 0.1% and degumming is performed for 3 times,fibrils obviously appear on the surface of degummed silk fiber,with the breaking strength decreasing by 27.6%.The degree of removal of sericin has an impact on the dissolution process and the structure of regenerated silk fibroin.The dissolving time decreases with the increase of the concentration of degumming solution and degumming times.When the concentration of Na_2CO_3 is 0.05% and degumming is performed for 3 times,the obtained regenerated silk fibroin fiber has smooth surface,compact structure and good mechanical properties.

关 键 词：脱胶工艺 再生丝素蛋白纤维 脱胶率 蚕丝 

分 类 号：TS141.8[轻工技术与工程—纺织材料与纺织品设计]