Mechanical Properties of Small-diameter Superfine Silk Powder/Polyurethane Vascular Graft Reinforced by Tubular Knitted Fabric  

作　　者：ZHU Guo-cheng YANG Hong-jun OUYANG Chen-xi XU Wei-lin ZHANG Zhen YAN Yun 

机构地区：[1]Key Laboratory of Green Processing and Fuctional Textiles, Minisrty of Education, Wuhan University of Scienceand Engineering, Wuhan 430073, China [2]College of Textile, Donghua University, Shanghai 201620, China [3]Department of Vascular Surgery, Union Hospital, Tonal Medical College of Huazhong University of Scienceand Technology, Wuhan 430022, China

出　　处：《Chinese Journal of Biomedical Engineering(English Edition)》2010年第2期77-84,92,共9页中国生物医学工程学报（英文版）

基　　金：State Natural Sciences Fund;grant number:50873079;National Major Foudamental Research Program of China;grant number:2009CB526402

摘　　要：In this paper,a kind of composite microtube,which is made from superfine silk powder and polyurethane,reinforced by polyster and spandex tubular fabrics,was examined.The cross-section of composite microtubes were microporous,and micropores were uniform distributed,the inner surface was relatively smooth.The results showed that the wall thickness of composite microtubes increased,which led to the strength,the breaking work and the initial modulus incresead;that the spandex content increased brought about the initial modulus and the breaking work decreased,but the breaking extension and the breaking load were firstly increased and then decreased;and all the mechanical properties decreased as the SFSP content increased.In this paper,a kind of composite microtube,which is made from superfine silk powder and polyurethane,reinforced by polyster and spandex tubular fabrics,was examined.The cross-section of composite microtubes were microporous,and micropores were uniform distributed,the inner surface was relatively smooth.The results showed that the wall thickness of composite microtubes increased,which led to the strength,the breaking work and the initial modulus incresead;that the spandex content increased brought about the initial modulus and the breaking work decreased,but the breaking extension and the breaking load were firstly increased and then decreased;and all the mechanical properties decreased as the SFSP content increased.

关 键 词：superfine silk powder（SFSP） polyurethane（PU） tubular fabric vascular graft mechanical property 

分 类 号：TS105.1[轻工技术与工程—纺织工程] TQ323.8[轻工技术与工程—纺织科学与工程]