盐浓度对再生丝素蛋白纤维降解性能的影响分析  

Effect of salt concentration on degradation properties of regenerated silk fibroin fibers

作　　者：吴惠英[1] WU Huiying(College of Textile&Art,Suzhou Institute of Trade&Commerce,Suzhou 215009,China)

机构地区：[1]苏州经贸职业技术学院纺艺学院,江苏苏州215009

出　　处：《印染》2024年第11期54-57,共4页China Dyeing and Finishing

摘　　要：降解性是再生丝素蛋白材料在组织工程支架材料中应用的重要性能之一,为了探究再生丝素蛋白纤维的可控降解性能,讨论了丝素溶解体系中盐浓度对再生丝素蛋白纤维降解性能的影响。结果表明:当CaCl_(2)质量分数为6%时,再生丝素蛋白纤维表面光滑、结构致密,在降解过程中表现出相对稳定的性质,降解25 d后,纤维表面只出现少许裂痕,降解率为3.8%,断裂强度下降了22.7%;当CaCl_(2)质量分数为2%和10%时,25 d后的降解率分别为9.4%和16.5%,断裂强度分别下降了43.2%和75.4%,纤维的可纺性变差,降解过程中纤维性能不稳定。在实际应用中可以通过调节溶解体系中盐的浓度来调控再生丝素蛋白纤维的降解性能。Degradability is one of the important properties of regenerated silk fibroin materials in tissue engineer⁃ing scaffold materials.In order to explore the controllable degradation performance of regenerated silk fibroin fi⁃bers,the influence of salt concentration in the silk fibroin dissolution system on the degradation performance of regenerated silk fibroin fibers is discussed.The results show that when CaCl_(2)concentration is 6%,the sur⁃face of regenerated silk fibroin fibers is smooth and the structure is dense,exhibiting relatively stable proper⁃ties during degradation.After 25 d degradation,only a few cracks appeare on the fiber surface,with a degrada⁃tion rate of 3.8%and a decrease in breaking strength of 22.7%.When CaCl_(2)concentration is 2%and 10%,the degradation rates after 25 d are 9.4%and 16.5%,respectively,and the breaking strength decreases by 43.2%and 75.4%,respectively.The spinnability of the fibers deteriorates,and the fiber properties are unstable during the degradation process.Therefore,the degradation performance of regenerated silk fibroin fibers can be regu⁃lated by adjusting the concentration of salt in the dissolution system.

关 键 词：蚕丝 再生丝素蛋白纤维 盐浓度 降解 

分 类 号：TS199[轻工技术与工程—纺织化学与染整工程]