Roles of polymeric dispersant charge density on lead zirconate titanate aqueous processing
作者： Nisanart Traiphol , Rudeerat Suntako , Kasama Chanthornthip
DOI: 10.1016/J.CERAMINT.2010.05.018
关键词:
摘要: Abstract Poly(acrylic acid) (PAA) and poly(acrylic acid-co-maleic (PACM) were used as dispersants in preparation of lead zirconate titanate (PZT) aqueous suspensions. The effects dispersant structure on particle stabilization investigated through properties the Viscosity sedimentation height measurements showed that addition improved stabilization. concentrations to obtain lowest viscosity 0.4 wt% for PAA 0.2 wt% PACM based powder dried weight basis. Furthermore, pH studied suspensions prepared with dispersants. behaviors indicated improvements dispersion suspension stability an increasing pH. Particle revealed by laser light scattering scanning electron microscopy supported improvement at alkaline pHs. Detailed analysis these data exhibited higher efficiency PZT all conditions. results discussed anionic –COO− groups various pHs charge density along polymeric backbone
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