Details

Autor(en) / Beteiligte

• Jean, Jau-Ho
• Wang, Hong-Ren

Titel

Effects of Solids Loading, pH, and Polyelectrolyte Addition on the Stabilization of Concentrated Aqueous BaTiO3 Suspensions

Ist Teil von

• Journal of the American Ceramic Society, 2000-02, Vol.83 (2), p.277-280

Ort / Verlag

Westerville, Ohio: American Ceramics Society

Erscheinungsjahr

2000

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• Colloidal stability of concentrated aqueous BaTiO3 suspensions with ammonium salts of poly(acrylic acid) (PAA‐NH4) and poly(methacrylic acid) (PMAA‐NH4) as a function of pH and solids loading is investigated. For suspensions with solids loading less than 40 vol%, the required polyelectrolyte concentration to stabilize aqueous BaTiO3 suspensions decreases with increasing pH, but remains relatively unchanged with increasing solids loading. As the solids loading continuously increases (e.g., >50 vol%), the required amount of polyelectrolyte increases, but exhibits a minimum at pH ∼ 9.2. The critical amount of polyelectrolyte needed to achieve colloidal stability of aqueous BaTiO3 suspensions as a function of pH and solids loading is summarized in a three‐dimensional stability map.