• 文献标题:   Modifications induced in photocuring of Bis- GMA/TEGDMA by the addition of graphene nanoplatelets for 3D printable electrically conductive nanocomposites
  • 文献类型:   Article
  • 作  者:   MORICHE R, ARTIGAS J, REIGOSA L, SANCHEZ M, PROLONGO SG, URENA A
  • 作者关键词:   nano composite, polymermatrix composites pmcs, curing, electrical propertie, graphene nanoplatelet
  • 出版物名称:   COMPOSITES SCIENCE TECHNOLOGY
  • ISSN:   0266-3538 EI 1879-1050
  • 通讯作者地址:   Univ Rey Juan Carlos
  • 被引频次:   1
  • DOI:   10.1016/j.compscitech.2019.107876
  • 出版年:   2019

▎ 摘  要

The incorporation of nanoreinforcement in photocurable polymeric matrices can strongly affect the degree of curing and properties of the final nanocomposites as well as the process parameters for 3D printing. Particularly, the addition of GNPs in contents from 1 up to 10 wt% limits the degree of curing to 60% in Bis-GMA/TEGDMA. The increase up to 10 wt% causes a diminution of similar to 20% in the mentioned property. Additionally, the maximum thickness that can be cured by UV light abruptly decreases with the GNPs content, being similar to 400 mu m when using 1 wt% and below 20 mu m for nanocomposites filled with 10 wt%. Above the percolation threshold, the electrical conductivity of the photocured monolayers is dependent on the curing time, making possible the use of this materials as self-sensor of the degree of curing in additive manufacturing technologies.