High electric conductive PMMA composites without impact value decay by dispersion of copper powder

Yoshitake Nishi, Yoshihide Ebihara, Nobuhiro Kunikyoh, Masae Kanda, Keisuke Iwata, Kaori Yuse, Benoit Guiffard, Laurent Lebrun, Daniel Guyomar

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Copper powder dispersed poly-methyl methacrylic acid (acrylic resin, PMMA) composites (PMMA-Cu) were prepared by the solution cast method. The Cu addition at the critical volume fraction (15.0± 1.0 vol%Cu) drastically enhanced the electric conductivity from the insulator (10-14 Sm-1) to the electric conductor (105 Sm-1). The electric conductivity can be obtained by controlling the volume fraction of copper powders in PMMA polymers, as dilatation. The addition of 10 vol%Cu slightly enhanced the impact value of PMMA, whereas the remarkable decrease in the Charpy impact value was found at 25 ±5 vol%Cu. The high conductive PMMA-Cu composites (from 15 to 20 vol%Cu) with high impact value (5.5±0.5kJm -2), which was higher than that of dispersed nylono6 composites (2kJm-2) utilized for practical exteriors, were obtained without impact value decay by addition of small amount of copper powders.

Original languageEnglish
Pages (from-to)1437-1442
Number of pages6
JournalMaterials Transactions
Volume51
Issue number8
DOIs
Publication statusPublished - 2010 Aug
Externally publishedYes

Keywords

  • Composites
  • Electrical conductivity
  • Impact value
  • Poly-methyl methacrylic acid (PMMA)
  • Solution cast

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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