SUSPENSION POLYMERISATION CASTING OF LEAD ZIRCONATE TITANATE. PT.1. ACRYLAMIDE HYDROGEL SYSTEM

SUSPENSION POLYMERISATION CASTING OF LEAD ZIRCONATE TITANATE. PT.1. ACRYLAMIDE HYDROGEL SYSTEM

Suspension polymerisation casting (gel 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) was obtained by optimising the dispersant amount. The polymerisation process for t...

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Veröffentlicht in:Journal of materials science 2003-01, Vol.38 (12), p.2571-2579
Hauptverfasser: Miao, W, Halloran, J W, Brei, D E
Format: Artikel
Sprache:eng
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Zusammenfassung:Suspension polymerisation casting (gel 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) was obtained by optimising the dispersant amount. The polymerisation process for the monomer solution and PZT slurry were characterised 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 82-100 kJ/mol. The drying, burnout and sintering processes were also addressed. 29 refs.
ISSN:0022-2461