• 文献标题:   Structure and performance analysis of flatter ribbon-like electrospun poly(L-lactic acid)/graphene oxide nanofiber webs
  • 文献类型:   Article
  • 作  者:   MA H, ZHANG HX, WANG DS, ZENG XY, YI J, CAO JD, WU W
  • 作者关键词:   poly llactic acid, graphene oxide, porous structure, mechanical propertie, hydrolytic degradation
  • 出版物名称:   JOURNAL OF ENGINEERED FIBERS FABRICS
  • ISSN:   1558-9250
  • 通讯作者地址:   Jiaxing Univ
  • 被引频次:   0
  • DOI:   10.1177/1558925020952924
  • 出版年:   2020

▎ 摘  要

Polylactic acid matrix composites are widely used in packagings and biomaterials. The specific surface area, flexibility and degradation efficiency of the material are the key factors to determine its application in these fields. In this study, a series of poly(L-lactic acid) (PLLA)/graphene oxide (GO) composite nanofiber webs were prepared using electrospinning technique. The scanning electron microscope (SEM) image of PLLA/GO nanofibers showed a rougher surface and a smaller average diameter compared with that of pure PLLA nanofibers, and the nanofibers with 6 wt% GO in PLLA matrix looked like flatter ribbon. Accordingly, the tensile stress test of the electrospun webs with different GO contents showed high performance, 400% increment in the tensile stress at presence of 6 wt% GO. The hydrolytic degradation behavior of composite the nanofiber webs exhibited that the presence of GOs greatly improved the degradation rate, after 9 days, the degradation ratio of PLLA/GO can reach 16.83%. of the PLLA matrix, resulting from the better hydrophilic property and absorbability. Using GO to improve the preparation of new biocompatible materials from PLLA can provide a reference for problems in the field of packaging materials.