Thermogravimetric analysis of organic binder segregation during drying of particulate suspensions

M. M. Mandanas, G. L. Messing

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Thermogravimetric analysis (TGA) was used to evaluate microstructural evolution and binder segregation during drying of particulate suspensions of submicrometer alumina. The addition of 2 and 4 wt.% poly(vinyl alcohol) (PVA) binder decreased the evaporation rate by ~12 and ~20%, respectively, during the constant rate drying period. Increasing the PVA molecular weight (MW) extended the drying time also. At 4 wt.% addition, an acrylic emulsion binder did not affect the drying behavior but at 2 wt.% addition, the initial evaporation rate decreased by approximately 24%. It is shown that the TGA can be used to determine the drying stages of a particulate suspension during drying. (C) 2000 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)37-45
Number of pages9
JournalThermochimica Acta
Volume363
Issue number1-2
DOIs
StatePublished - Nov 27 2000

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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