9. Role of Polymeric Additive Compatibility in Ceramic Processing Systems

  1. William M. Carty
  1. U. Kim and
  2. W. M. Carty

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291177.ch9

Whitewares and Materials: Ceramic Engineering and Science Proceedings, Volume 25, Issue 2

Whitewares and Materials: Ceramic Engineering and Science Proceedings, Volume 25, Issue 2

How to Cite

Kim, U. and Carty, W. M. (2004) Role of Polymeric Additive Compatibility in Ceramic Processing Systems, in Whitewares and Materials: Ceramic Engineering and Science Proceedings, Volume 25, Issue 2 (ed W. M. Carty), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291177.ch9

Author Information

  1. New York State College of Ceramics at Alfred University, Alfred, New York

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2004

ISBN Information

Print ISBN: 9780470051474

Online ISBN: 9780470291177

SEARCH

Keywords:

  • ceramic processing systems;
  • polymeric additive compatibility;
  • spray dried granule observed;
  • no silicate;
  • huggins calculations

Summary

The interactions between polymeric additives in ceramic processing are usually considered negligible. In this study it is shown that PVA binder migration during the spray drying process is influenced by the choice of dispersant. This result suggests that interactions between polymers usually do occur and can adversely afect product Performance. Flory-Huggins calculations predict phase separation of No-PMAA and Nu-PAA with PVA and homogeneous mixing of No-silicate with PVA. Light scattering studies on polymer solutions and morphology studies on dried polymer solutions confirm these predictions. Based on these calculations and the observations, PVA binder migration behavior is explained. PVA in spray-dried granules can be stained and its location within the spray-dried granule observed, verifiing the effect of other polymers (dispersants) on binder migration.