• 文献标题:   Digital light processing 3D printing of graphene/carbonyl iron/polymethyl methacrylate nanocomposites for efficient microwave absorption
  • 文献类型:   Article
  • 作  者:   ZUO YX, YAO ZJ, LIN HY, ZHOU JT, LU J, DING J
  • 作者关键词:   graphene, polymethyl methacrylate, dlp 3d printing, microwave absorption property
  • 出版物名称:   COMPOSITES PART BENGINEERING
  • ISSN:   1359-8368 EI 1879-1069
  • 通讯作者地址:   Nanjing Univ Aeronaut Astronaut
  • 被引频次:   9
  • DOI:   10.1016/j.compositesb.2019.107533
  • 出版年:   2019

▎ 摘  要

Digital light processing (DLP) 3D printing can enhance the microwave absorption performance of absorbers from the material composition and structure design. For the first time, graphene/carbonyl iron powder(CIP)/polymethyl methacrylate(PMMA) nanocomposites with various compositions of graphene and CIP were successfully prepared by DLP 3D printing technology. These newly prepared composites show enhanced microwave absorption properties. Specifically, the nanocomposite (labelled as CG4) containing 1.0 wt% graphene and 47.8 wt % CIP possesses the maximum reflection loss (R-L) of -54A dB at a thickness of 2.1 nun, along with effective absorption (R-L <-10dB) bandwidth of as wide as 3.41 GHz 3D printing technology can enhance the higher efficiency of microwave absorbers preparation due to the rapid prototyping and little post-treatment. The superior microwave absorption performance benefits from interface polarization and proper impedance matching.