再生丝素纤维非织造织物的孔隙结构与性能  

Porous Structure and Properties of Regenerated Silk Fibroin Nonwovens

作　　者：邱芯薇[1] 潘志娟[1] 夏艳杰[1] 孙道权 

机构地区：[1]苏州大学材料工程学院 [2]鑫缘茧丝绸集团股份有限公司,江苏海安226600

出　　处：《丝绸》2007年第12期40-43,共4页Journal of Silk

基　　金：江苏省科技攻关项目(BE2004368)

摘　　要：采用静电纺丝的方法制备了再生丝素纤维非织造织物,用压汞仪测定和分析了织物内部孔隙的大小及其分布特征;研究了织物的面密度对其透气性、透湿性以及力学性能的影响,同时探讨了力学性能的方向性。结果表明:静电纺再生丝素纤维非织造织物的平均孔径为2～4μm,具有很高的比表面积;随着面密度的增加,织物的透气性下降,透湿性没有显著的变化;尽管该产品的力学性能受面密度的影响,但在同一试样上其断裂强度和断裂伸长率却是各向同性的。Regenerated silk fibroin nonwovens were fabricated by electrospinning. The distributions of pore sizes in the nonwovens were measured by using mercury porosimeter. The effect of area density of the electrospun regenerated silk fibroin （ERSF） nonwovens on air and vapor permeability as well as mechanical properties were investigated. Meanwhile, the orient characteristics of mechanical properties were discussed. The results showed that the average pore diameter of ERSF mat was about 2-4 micrometers, and thus the specific surface area was high. With the increase of the area density, the air permeability of ERSF mats tended to decrease, while the vapor transfer rate produced no evident changes. Strain and strength at break of ERSF nonwovens were prominently affected by the area density, however the regenerated silk nonwoven was isotropic in mechanical properties on the basis of stress-strain behaviors of samples cut along different directions of an ERSF.

关 键 词：静电纺丝 桑蚕丝 非织造织物 孔径 透通性 力学性能 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计]