About: Optimization of Fine Alumina Gelcasting Using In Situ Dynamic Rheology

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In situ dynamic rheology was used to investigate the polymerization process of gelcasting suspensions based on fine alumina and water solution of methacrylamide and methylene bisacrylamide monomers. Small-strain oscillatory shear measurements were able to detect the progress of the whole gelation process from the liquid suspension to the elastic gel. The parameters describing the gelation kinetics and final gel properties such as idle time, total gelation time and equilibrium complex viscosity were correlated with the initiator/accelerator concentration, linear to cross-linking monomer ratio, polymerization temperature, and alumina loading. A strong catalytic effect of fine alumina particles on the decomposition of ammonium persulfate into free radicals was established. The catalytic activity of alumina powder was controlled by ions adsorbed on the particle surface. The catalytic effect of alumina in the presence of the Dolapix CE 64 dispersant made the polymerization process independent of the accele In situ dynamic rheology was used to investigate the polymerization process of gelcasting suspensions based on fine alumina and water solution of methacrylamide and methylene bisacrylamide monomers. Small-strain oscillatory shear measurements were able to detect the progress of the whole gelation process from the liquid suspension to the elastic gel. The parameters describing the gelation kinetics and final gel properties such as idle time, total gelation time and equilibrium complex viscosity were correlated with the initiator/accelerator concentration, linear to cross-linking monomer ratio, polymerization temperature, and alumina loading. A strong catalytic effect of fine alumina particles on the decomposition of ammonium persulfate into free radicals was established. The catalytic activity of alumina powder was controlled by ions adsorbed on the particle surface. The catalytic effect of alumina in the presence of the Dolapix CE 64 dispersant made the polymerization process independent of the accele (en)
Title	Optimization of Fine Alumina Gelcasting Using In Situ Dynamic Rheology Optimization of Fine Alumina Gelcasting Using In Situ Dynamic Rheology (en)
skos:prefLabel	Optimization of Fine Alumina Gelcasting Using In Situ Dynamic Rheology Optimization of Fine Alumina Gelcasting Using In Situ Dynamic Rheology (en)
skos:notation	RIV/00216305:26620/12:PU99887!RIV13-MSM-26620___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0068), P(OC09040)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Trunec, Martin Bera, Oskar
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	156951
http://linked.open...ai/riv/idVysledku	RIV/00216305:26620/12:PU99887
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Suspensions, Gels, Rheology, Polymerization, Catalyst (en)
http://linked.open.../riv/klicoveSlovo	Suspensions Gels Rheology Catalyst Polymerization
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0815B0A27208]
http://linked.open...i/riv/nazevZdroje	Journal of the American Ceramic Society
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Rheological behaviour of polymer melts and solutions loaded with nanoparticle fillers Central european institute of technology
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	95
http://linked.open...iv/tvurceVysledku	Trunec, Martin Bera, Oskar
http://linked.open...ain/vavai/riv/wos	000308290400031
issn	0002-7820
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	26620

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