• 文献标题:   Effect of graphene and fabrication technique on the release kinetics of carvacrol from polylactic acid
  • 文献类型:   Article
  • 作  者:   SCAFFARO R, MAIO A, LOPRESTI F
  • 作者关键词:   electrospinning, solvent casting, controlled release, essential oil, graphene
  • 出版物名称:   COMPOSITES SCIENCE TECHNOLOGY
  • ISSN:   0266-3538 EI 1879-1050
  • 通讯作者地址:   Univ Palermo
  • 被引频次:   30
  • DOI:   10.1016/j.compscitech.2018.11.003
  • 出版年:   2019

▎ 摘  要

Porous membranes and thin films containing poly-lactic acid (PLA), carvacrol (CRV) and graphene nanoplatelets (GNP) were fabricated by electrospinning and solvent casting at different formulations. The systems were characterized from a mechanical, morphological, calorimetric and spectroscopic point of view. CRV release as a function of time was studied and a mathematical model was used to fit and interpret the data in order to investigate the release mechanism. The results indicate that the incorporation of GNP generally determined a simultaneous strengthening, stiffening and toughening effect, while preserving a good ductility. Furthermore, integrating GNP allowed tuning the amount and kinetics of CRV release, and proved to reduce the initial burst release effect.