Influence of hydroxyl content of binders on rheological properties of cerium-gadolinium oxide (CGO) screen printing inks

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Abstract

The influence of hydroxyl content of binders on rheological properties of screen printing inks is investigated. The actual amount of hydroxyl groups is correlated to the level of hyper-entanglement that characterizes the binders in solution. Three of the most used binders (ethyl cellulose, and two vinyl resins) were selected and characterized in solution via viscosimetry method. A high degree of hyper-entanglement was observed for ethyl cellulose polymers, whereas a mitigated effect characterized the two vinyl resins. Cerium-gadolinium oxides (CGO)-based inks, prepared using the selected binders, were investigated by means of rheology. The vinyl resin at higher hydroxyl content and low level of hyper-entanglement was demonstrated to impart superior printability properties.
Original languageEnglish
JournalJournal of the European Ceramic Society
Volume35
Issue number5
Pages (from-to)1495–1504
Number of pages10
ISSN0955-2219
DOIs
Publication statusPublished - 2015

Keywords

  • Ceramic ink
  • Hyper-entanglement
  • Intrinsic viscosity
  • Rheology
  • Screen printing
  • Binders
  • Cellulose
  • Cerium
  • Elasticity
  • Gadolinium
  • Ink
  • Resins
  • Vinyl resins
  • Ethyl cellulose
  • Gadolinium oxide
  • Hydroxyl content
  • Hydroxyl groups
  • Rheological property
  • Viscosimetry

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