Functionalization of multiwalled carbon nanotubes by solution plasma processing in ammonia aqueous solution and preparation of composite material with polyamide 6

Tatsuru Shirafuji, Yohei Noguchi, Taibou Yamamoto, Junko Hieda, Nagahiro Saito, Osamu Takai, Akiharu Tsuchimoto, Kazuhiro Nojima, Youji Okabe

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Solution plasma processing (SPP) has been performed on multiwalled carbon nanotubes (MWCNTs) in ammonia aqueous solution. The MWCNTs, which do not disperse in aqueous solution, uniformly dispersed after the SPP. Only 2 h was required to obtain 10 g of the dispersed MWCNTs, while 7 days and additional chemicals were required for 185mg in a previous study. The X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy of the SPP-treated MWCNTs revealed that nitrogen- and oxygen-containing groups are formed on the MWCNTs. Serious damage to the MWCNT structure was not observed in the Raman spectrum or transmission electron microscopy images of the SPP-treated MWCNTs. The composite materials prepared using polyamide 6 with the SPP-treated MWCNTs showed better tensile, bending, and impact strength than those prepared with nontreated MWCNTs.

Original languageEnglish
Article number125101
JournalJapanese journal of applied physics
Volume52
Issue number12
DOIs
Publication statusPublished - 2013 Dec 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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