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Tape Casting Slip Preparation by in Situ Polymerization
Author(s) -
Grader Gideon S.,
Zuri Limor
Publication year - 1993
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1993.tb06651.x
Subject(s) - materials science , polymerization , plasticizer , monomer , ultimate tensile strength , in situ polymerization , composite material , slip (aerodynamics) , polymer , in situ , homogeneity (statistics) , chemical engineering , chemistry , organic chemistry , physics , statistics , mathematics , engineering , thermodynamics
The present work describes the polymerization of methylmethacrylate monomer into polymethylmethacrylate (PMMA), in the presence of either coarse or ultrafine alumina powder. The flexibility of the material was modified by addition of either butylbenzyl phthalate (S‐160), or butylacrylate (BA) monomer as plasticizers. It was found that BA is more compatible than S‐160 in the PMMA system. A density of 97%–99% was reached with ultrafine alumina. The maximum tensile strength of the green and sintered tapes was 10 and 140 MPa, respectively. Due to improved homogeneity in the polymerized slip, the sintered tapes prepared by in situ polymerization were stronger and denser than those prepared by conventional blending of commercial PMMA.