Influence of PMSA-Based polymer on the settling velocity of CNT in Aqueous Media

Naoyuki Nishimura, Shin Ichi Takeda, Takashi Teranishi, Hidetaka Hayashi, Naoto Saito, Akira Kishimoto

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The preparation of a stable suspension dispersing carbon nanotube (CNT) in aqueous media using polystyrene maleic acid (PSMA)-based polymer as surfactant was attempted to be subsequently used in the fabrication of high-performance ceramic matrix composites. Settling velocity under centrifugation analysis was experimentally evaluated as one of the stability criteria of the dispersion and pulsed nuclear magnetic resonance was used to evaluate the adsorbed molecules. The settling velocity decreased considerably with the PSMA concentration up to the saturation at around 7 mass%, then further decreased gradually with PSMA. The former was thought to be based on the dissociation of CNT agglomerate and the latter would be attributed to the surfactant-induced network structure formed in the aqueous media.

Original languageEnglish
Pages (from-to)2006-2009
Number of pages4
JournalMaterials Transactions
Volume56
Issue number12
DOIs
Publication statusPublished - Jan 1 2015

Keywords

  • Adsorption
  • Dispersion
  • Multi-walled carbon nanotube
  • Orientation
  • Surfactant

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Influence of PMSA-Based polymer on the settling velocity of CNT in Aqueous Media'. Together they form a unique fingerprint.

  • Cite this