PAA-PEO comb polymer dispersants for colloidal processing

G. H. Kirby, D. A. Harris, Q. Li, J. A. Lewis

Research output: Contribution to journalConference articlepeer-review

Abstract

We have recently identified a new dispersant for stabilizing ceramic suspensions based on a comb polymer architecture. This additive consists of a poly(acrylic acid) (PAA) backbone with neutral poly(ethylene oxide) (PEO) teeth. This dispersant architecture offers superior performance over a broad range of ionic strength and pH conditions where pure PAA dispersants fail to provide stabilization. Here, we describe the adsorption behavior and rheological properties imparted by PAA-PEO dispersants on the stability of BaTiO3 nanoparticle suspensions at pH 9, using pure PAA as a benchmark.

Original languageEnglish (US)
Pages (from-to)161-164
Number of pages4
JournalKey Engineering Materials
Volume264-268
Issue numberI
DOIs
StatePublished - 2004
EventProceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey
Duration: Jun 29 2003Jul 3 2003

Keywords

  • Adsorption
  • Barium Titanate
  • BaTiO
  • Ceramic processing
  • Colloidal processing
  • Comb polymer
  • Dispersant
  • Electrosteric stabilization
  • Poly(acrylic acid)
  • Poly(ethylene oxide)
  • Polyelectrolyte
  • Rheology
  • Steric stabilization

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

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