《Table 4 Results from the tensile test of PLA and PLA/CNF composite nanofibers》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《"Morphological, Mechanical and Thermal Properties of Poly(lactic acid)(PLA)/Cellulose Nanofibrils(CNF) Composites Nanofiber for Tissue Engineering"》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

The stress-strain curves of the PLA and PLA/CNF composite nanofibers are shown in Fig.7.The values of the Young’s moduli，tensile strength and elongation at break obtained from these stress-strain curves are listed in Table 4.These results revealed that the neat PLA membrane had a Young’s moduli of 93.65 MPa，a tensile strength of 1.74 MPa and an elongation at break of 60.27%.With the incorporation of CNF，a distinctive increase of the Young’s moduli and tensile strength of all of the PLA/CNF composite nanofiber were observed.This may be attributed to the high inherent chain rigidity and stiffness of CNF，and the high crystallinity of PLA/CNF composite nanofiber.Moreover，it can also be seen that the value of Young’s moduli for PLA and PLA/CNF nanocomposite membranes were in the range of 63.51-106.96 MPa，which is similar to that of the human cancellous bones of 50-100 MPa[37].This suggests that both PLA and PLA/CNF composite nanofiber would be a potential scaffold in the cancellous bones tissue engineering field.Additionally，with the addition of CNF，the elongation at break of all of the PLA/CNF composite nanofiber decreased compared with that of the PLA fiber.This might be because the CNF particles dispersed in the PLA mixture and formed a discontinuous phase，which would generate weakness spots when the tensile test was carried out.