聚丁二酸丁二醇酯调控丝素蛋白超细纤维膜形貌及其力学性能  

Morphology and mechanical properties of electrospun silk fibroin ultrafine fibrous membranes adjusted and controlled by PBS

作　　者：王群旺[1] 熊杰[1] 张红萍[1] 谢军军[2] 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,杭州310018 [2]杭州师范大学临床医学院,杭州310036

出　　处：《复合材料学报》2010年第5期24-28,共5页Acta Materiae Compositae Sinica

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(IRT0654);先进纺织材料与制备技术教育部重点实验室开放基金(2006003)

摘　　要：为了改善静电纺再生丝素蛋白(SF)纤维膜的力学性能,通过静电纺丝技术制备丝素蛋白(SF)/聚丁二酸丁二醇酯(PBS)复合超细纤维膜。通过对用甲醇处理后的具有不同共混比例的超细纤维膜进行FE-SEM、FTIR、XRD和DSC观察测试,分析比较了不同共混比例的复合超细纤维膜的形貌、结构,并进行力学性能测试。结果表明:随着聚丁二酸丁二醇酯共混质量比的增加,复合超细纤维的平均直径从289 nm增大到425 nm;复合超细纤维的结晶性能随之提高;复合超细纤维膜的拉伸破坏应力先减小后增大,拉伸破坏应变逐渐增加;当共混质量比为50/50时,复合超细纤维膜表现出良好的力学性能,拉伸破坏应力接近于16 MPa,破坏应变达到50%。聚丁二酸丁二醇酯可有效调控丝素蛋白超细纤维膜的形貌、结构和力学性能。In order to improve the mechanical properties of electrospun silk fibroin（SF） ultrafine fibrous membranes,SF and poly（butylene succinate）（PBS） were dissolved in 1,1,1,3,3,3-hexafluoro-2-propanol（HFIP） to fabricate SF/PBS composite ultrafine fibrous membranes by electrospinning.After the composite ultrafine fibrous membranes prepared by using different mass ratios of SF to PBS were treated by methanol,the morphology,structure,and mechanical properties of membranes were characterized by means of FE-SEM,FTIR,XRD,DSC and Instron 5543 tensile tester respectively.The results show that the average diameter of composite ultrafine fibers increases from 289 nm to 425 nm and the crystallinity of composite ultrafine fibers increases with the adding of PBS.Especially the mechanical properties are improved.The tensile failure stress of composite ultrafine fibrous membranes first decreases and then increases with the adding of PBS,and the failure strain gradually increases.When the blend mass ratio is 50/50,failure stress is close to 16 MPa and failure strain is up to 50%.The morphology and mechanical properties of ultrafine fibrous membranes can be adjusted and controlled effectively by adding PBS.

关 键 词：丝素蛋白(SF) 聚丁二酸丁二醇酯(PBS) 复合超细纤维膜 静电纺丝 

分 类 号：TB332[一般工业技术—材料科学与工程]