混杂聚丁二酸丁二醇酯调控再生丝素蛋白超细纤维膜的力学性能  

Adjustment and control of mechanical properties of silk fibroin ultrafine fibrous membrane by hybrid electrospinning with PBS

作　　者：王群旺[1] 许淑燕[1,2] 张红萍[1] 李妮[1] 谢军军[3] 熊杰[1] 刘冠峰[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018 [2]杭州职业技术学院艺术系,浙江杭州310018 [3]杭州师范大学临床医学院,浙江杭州310016

出　　处：《纺织学报》2011年第6期18-21,27,共5页Journal of Textile Research

基　　金：973计划前期研究课题(2008CB617506);浙江省自然科学基金重点项目(Z4100798);长江学者和创新团队发展计划资助项目(IRT0654);先进纺织材料与制备技术教育部重点实验室开放基金资助项目(2006003);杭州市卫生科技计划项目(2009A013)

摘　　要：通过静电纺丝制备了再生丝素蛋白(SF)/聚丁二酸丁二醇酯(PBS)不同混杂质量比的超细纤维,通过对甲醇处理后混杂复合超细纤维膜进行FE-SEM、FT-IR和XRD观察与表征,分析比较了复合超细纤维膜的形貌与结构,并进行力学性能测试。结果表明:不同混杂质量比的超细纤维形貌相似,纤维均匀良好;随着PBS含量的增加,混杂复合超细纤维膜整体的结晶性能变好,拉伸破坏应力和应变逐渐增加;当SF/PBS混杂质量比从90/10变为50/50时,拉伸破坏应力从15.2 MPa增加到17.3 MPa,且拉伸破坏应变从2.1%增大到38.2%;相比于静电纺纯丝素蛋白超细纤维膜,混杂复合超细纤维膜表现出良好的力学性能。SF/PBS composite ultrafine fibers with different mass ratios were prepared by electrospinning,and then treated with methanol,the resulting composite ultrafine fibrous membranes were characterized using field-emission scanning electron microscopy（FE-SEM）,FT-IR and XRD.Analytical comparison was conducted of the morphology and structures.The mechanical properties were tested.The results showed that the morphology of hybrid ultrafine fibers with different mass ratios is similar,and their structures are uniform.With the increase of PBS,the crystallinity and mechanical properties of the membranes improve,failure tensile stress and strain increase gradually.When hybrid mass ratio of SF/PBS change from 90/10 to 50/50,the failure stress increases from 15.2 MPa to 17.3 MPa and failure strain increases from 2.1% to 38.2%.The hybrid composite ultrafine fibrous membranes show better mechanical properties when compared with those prepared with electrospun pure silk fibroin fibers.

关 键 词：丝素蛋白 聚丁二酸丁二醇酯 混杂超细纤维膜 静电纺丝 

分 类 号：TB332[一般工业技术—材料科学与工程]