内密外疏微孔结构膨体聚四氟乙烯管式纤维膜的制备及人工血管应用
李成才, 朱登辉, 殷向, 朱海霖, 张华鹏, 刘国金, 郭玉海, 刘炳荣

Preparation of polytetrafluoroethylene tubular fiber membranes with dense inner and sparse outer pore structure and its application in artificial blood vessels
LI Chengcai, ZHU Denghui, YIN Xiang, ZHU Hailin, ZHANG Huapeng, LIU Guojin, GUO Yuhai, LIU Bingrong
表1 不同ePTFE样品的拉伸断裂强度和断裂伸长率
Tab.1 Tensile strength and elongation at break of different ePTFE samples
ePTFE样品 径向 纵向
断裂强度/MPa 断裂伸长率/% 断裂强度/MPa 断裂伸长率/%
一次定形 13.15±0.10 605.78±1.05 36.18±0.18 83.64±0.85
二次定形 25.75±0.11 620.34±0.80 38.06±0.21 92.22±0.73