Suspension polymerization casting of lead zirconate titanate, part I: Acrylamide hydrogel system

Suspension polymerization casting of lead zirconate titanate, part I: Acrylamide hydrogel system

Suspension polymerization casting of lead zirconate titanate (PZT) filled acrylamide systems was studied. A high solid loading (51 vol%) PZT slurry with low viscosity (about 280 mPa·s at shear rate 10 s−1) was obtained by optimizing the dispersant amount. The polymerization process for the monomer s...

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Veröffentlicht in:Journal of materials science 2003-07, Vol.38 (12), p.2571-2579
Hauptverfasser: MIAO, W, HALLORAN, J. W, BREI, D. E
Format: Artikel
Sprache:eng
Schlagworte:
Acrylamide
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Dispersants
Electrotechnical and electronic ceramics
Energy storage
Exact sciences and technology
Gelation
Hydrogels
Lead zirconate titanates
Materials science
Monomers
Polymerization
Shear rate
Slurries
Storage modulus
Suspension polymerization
Technical ceramics
Viscosity
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Zusammenfassung:Suspension polymerization casting of lead zirconate titanate (PZT) filled acrylamide systems was studied. A high solid loading (51 vol%) PZT slurry with low viscosity (about 280 mPa·s at shear rate 10 s−1) was obtained by optimizing the dispersant amount. The polymerization process for the monomer solution and PZT slurry were characterized with the help of the storage modulus measurement. For the monomer solution, the overall activation energy of gelation was calculated as 60–76 kJ/mol, while for the PZT slurry, this energy increased to 91 ± 9 kJ/mol. The drying, burnout and sintering processes were also addressed.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1024466014836