LrgpV1, PascalFrancis, Corpus, bibRecord, 000452

Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer

Identifieur interne : 000452 ( PascalFrancis/Corpus ); précédent : 000451; suivant : 000453

Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer

Auteurs : Redha Bella ; Francoise Fenouillot ; Philippe Cassagnau ; Laurent Falk

Source :

Polymer : (Guildford) [ 0032-3861 ] ; 2007.

RBID : Pascal:07-0519851

Descripteurs français

Pascal (Inist)
- Epoxyde résine, Matériau modifié, EVA, Bicouche, Mélange homogène, Durcissement(matière plastique), Diamine, Réaction modèle, Diffusion mutuelle, Transfert matière avec réaction, Cinétique chimique, Modélisation, Modèle cinétique, Etude théorique.

English descriptors

KwdEn :
- Bilayers, Chemical reaction kinetics, Curing(plastics), Diamine, EVA, Epoxy resin, Homogeneous mixtures, Interdiffusion, Kinetic model, Mass transfer with reaction, Model reaction, Modeling, Modified material, Theoretical study.

Abstract

A model reactive system was defined for studying experimentally and by simulation the competition between reaction and diffusion of two low molecular weight reactants, 2,3-epoxypropyl-phenylether (EPPE) and dipentylamine (DPA). Both reactants are miscible in a high-viscous molten polymer, poly(ethylene-co-vinyl acetate) (EVA). The comparison of the experimental rates of reaction for initially homogeneous samples and bi-layer unpremixed samples proved that the reaction was diffusion controlled. A kinetic model of the epoxy-amine reaction was coupled to mutual diffusion coefficients of reacting species in a transport model and the simulations were compared with experimental results. The diffusion/reaction process was finally related to typical mixing conditions encountered in reactive polymer processes. For the model reactive system, the simulations have established that actual mixing conditions with shear rate values encountered in polymer processing machines, were able to homogenize the system in less than 10 s. In other words, the reaction should no longer be controlled by molecular diffusion as soon as a relatively low intensity mixing is applied (shear rate > 10 s^-1).

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0032-3861`
A02	`01`			`@0 POLMAG`
A03		`1`		`@0 Polymer : (Guildf.)`
A05				`@2 48`
A06				`@2 23`
A08	`01`	`1`	`ENG`	`@1 Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer`
A11	`01`	`1`		`@1 BELLA (Redha)`
A11	`02`	`1`		`@1 FENOUILLOT (Francoise)`
A11	`03`	`1`		`@1 CASSAGNAU (Philippe)`
A11	`04`	`1`		`@1 FALK (Laurent)`
A14	`01`			`@1 IMP/LMM Laboratoire des Matériaux Macromoléculaires, CNRS UMR 5223, INSA-Lyon @2 69621 Villeurbanne @3 FRA @Z 1 aut. @Z 2 aut.`
A14	`02`			`@1 Université de Lyon @2 Lyon, 69003 @3 FRA @Z 3 aut.`
A14	`03`			`@1 CNRS UMR5223, Ingénierie des Matériaux Polymères: Laboratoire des Matériaux Polymères et Biomatériaux @2 69622 Villeurbanne @3 FRA @Z 3 aut.`
A14	`04`			`@1 Laboratoire des Sciences du Génie Chimique (LSGC), UMR 6811, ENSIC Nancy @3 FRA @Z 4 aut.`
A20				`@1 6902-6912`
A21				`@1 2007`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 11463 @5 354000162091170170`
A44				`@0 0000 @1 © 2007 INIST-CNRS. All rights reserved.`
A45				`@0 27 ref.`
A47	`01`	`1`		`@0 07-0519851`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Polymer : (Guildford)`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 A model reactive system was defined for studying experimentally and by simulation the competition between reaction and diffusion of two low molecular weight reactants, 2,3-epoxypropyl-phenylether (EPPE) and dipentylamine (DPA). Both reactants are miscible in a high-viscous molten polymer, poly(ethylene-co-vinyl acetate) (EVA). The comparison of the experimental rates of reaction for initially homogeneous samples and bi-layer unpremixed samples proved that the reaction was diffusion controlled. A kinetic model of the epoxy-amine reaction was coupled to mutual diffusion coefficients of reacting species in a transport model and the simulations were compared with experimental results. The diffusion/reaction process was finally related to typical mixing conditions encountered in reactive polymer processes. For the model reactive system, the simulations have established that actual mixing conditions with shear rate values encountered in polymer processing machines, were able to homogenize the system in less than 10 s. In other words, the reaction should no longer be controlled by molecular diffusion as soon as a relatively low intensity mixing is applied (shear rate > 10 s^-1).
C02	`01`	`X`		`@0 001D10A05B`
C03	`01`	`X`	`FRE`	`@0 Epoxyde résine @5 01`
C03	`01`	`X`	`ENG`	`@0 Epoxy resin @5 01`
C03	`01`	`X`	`SPA`	`@0 Epóxido resina @5 01`
C03	`02`	`X`	`FRE`	`@0 Matériau modifié @5 02`
C03	`02`	`X`	`ENG`	`@0 Modified material @5 02`
C03	`02`	`X`	`SPA`	`@0 Material modificado @5 02`
C03	`03`	`X`	`FRE`	`@0 EVA @2 NK @5 03`
C03	`03`	`X`	`ENG`	`@0 EVA @2 NK @5 03`
C03	`03`	`X`	`SPA`	`@0 EVA @2 NK @5 03`
C03	`04`	`3`	`FRE`	`@0 Bicouche @5 04`
C03	`04`	`3`	`ENG`	`@0 Bilayers @5 04`
C03	`05`	`3`	`FRE`	`@0 Mélange homogène @5 05`
C03	`05`	`3`	`ENG`	`@0 Homogeneous mixtures @5 05`
C03	`06`	`X`	`FRE`	`@0 Durcissement(matière plastique) @5 06`
C03	`06`	`X`	`ENG`	`@0 Curing(plastics) @5 06`
C03	`06`	`X`	`SPA`	`@0 Endurecimiento(material plástico) @5 06`
C03	`07`	`X`	`FRE`	`@0 Diamine @1 ENT @5 07`
C03	`07`	`X`	`ENG`	`@0 Diamine @1 ENT @5 07`
C03	`07`	`X`	`SPA`	`@0 Diamina @1 ENT @5 07`
C03	`08`	`X`	`FRE`	`@0 Réaction modèle @5 08`
C03	`08`	`X`	`ENG`	`@0 Model reaction @5 08`
C03	`08`	`X`	`SPA`	`@0 Reacción modelo @5 08`
C03	`09`	`X`	`FRE`	`@0 Diffusion mutuelle @5 10`
C03	`09`	`X`	`ENG`	`@0 Interdiffusion @5 10`
C03	`09`	`X`	`SPA`	`@0 Difusión mútua @5 10`
C03	`10`	`X`	`FRE`	`@0 Transfert matière avec réaction @5 11`
C03	`10`	`X`	`ENG`	`@0 Mass transfer with reaction @5 11`
C03	`10`	`X`	`SPA`	`@0 Transferencia materia con reacción @5 11`
C03	`11`	`X`	`FRE`	`@0 Cinétique chimique @5 12`
C03	`11`	`X`	`ENG`	`@0 Chemical reaction kinetics @5 12`
C03	`11`	`X`	`SPA`	`@0 Cinética química @5 12`
C03	`12`	`X`	`FRE`	`@0 Modélisation @5 13`
C03	`12`	`X`	`ENG`	`@0 Modeling @5 13`
C03	`12`	`X`	`SPA`	`@0 Modelización @5 13`
C03	`13`	`X`	`FRE`	`@0 Modèle cinétique @5 14`
C03	`13`	`X`	`ENG`	`@0 Kinetic model @5 14`
C03	`13`	`X`	`SPA`	`@0 Modelo cinético @5 14`
C03	`14`	`X`	`FRE`	`@0 Etude théorique @5 15`
C03	`14`	`X`	`ENG`	`@0 Theoretical study @5 15`
C03	`14`	`X`	`SPA`	`@0 Estudio teórico @5 15`
N21				`@1 337`
N44	`01`			`@1 PSI`
N82				`@1 PSI`

Format Inist (serveur)

NO :	PASCAL 07-0519851 INIST
ET :	Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer
AU :	BELLA (Redha); FENOUILLOT (Francoise); CASSAGNAU (Philippe); FALK (Laurent)
AF :	IMP/LMM Laboratoire des Matériaux Macromoléculaires, CNRS UMR 5223, INSA-Lyon/69621 Villeurbanne/France (1 aut., 2 aut.); Université de Lyon/Lyon, 69003/France (3 aut.); CNRS UMR5223, Ingénierie des Matériaux Polymères: Laboratoire des Matériaux Polymères et Biomatériaux/69622 Villeurbanne/France (3 aut.); Laboratoire des Sciences du Génie Chimique (LSGC), UMR 6811, ENSIC Nancy/France (4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Polymer : (Guildford); ISSN 0032-3861; Coden POLMAG; Royaume-Uni; Da. 2007; Vol. 48; No. 23; Pp. 6902-6912; Bibl. 27 ref.
LA :	Anglais
EA :	A model reactive system was defined for studying experimentally and by simulation the competition between reaction and diffusion of two low molecular weight reactants, 2,3-epoxypropyl-phenylether (EPPE) and dipentylamine (DPA). Both reactants are miscible in a high-viscous molten polymer, poly(ethylene-co-vinyl acetate) (EVA). The comparison of the experimental rates of reaction for initially homogeneous samples and bi-layer unpremixed samples proved that the reaction was diffusion controlled. A kinetic model of the epoxy-amine reaction was coupled to mutual diffusion coefficients of reacting species in a transport model and the simulations were compared with experimental results. The diffusion/reaction process was finally related to typical mixing conditions encountered in reactive polymer processes. For the model reactive system, the simulations have established that actual mixing conditions with shear rate values encountered in polymer processing machines, were able to homogenize the system in less than 10 s. In other words, the reaction should no longer be controlled by molecular diffusion as soon as a relatively low intensity mixing is applied (shear rate > 10 s^-1).
CC :	001D10A05B
FD :	Epoxyde résine; Matériau modifié; EVA; Bicouche; Mélange homogène; Durcissement(matière plastique); Diamine; Réaction modèle; Diffusion mutuelle; Transfert matière avec réaction; Cinétique chimique; Modélisation; Modèle cinétique; Etude théorique
ED :	Epoxy resin; Modified material; EVA; Bilayers; Homogeneous mixtures; Curing(plastics); Diamine; Model reaction; Interdiffusion; Mass transfer with reaction; Chemical reaction kinetics; Modeling; Kinetic model; Theoretical study
SD :	Epóxido resina; Material modificado; EVA; Endurecimiento(material plástico); Diamina; Reacción modelo; Difusión mútua; Transferencia materia con reacción; Cinética química; Modelización; Modelo cinético; Estudio teórico
LO :	INIST-11463.354000162091170170
ID :	07-0519851

Links to Exploration step

Pascal:07-0519851

Le document en format XML

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<term>EVA</term>
<term>Epoxy resin</term>
<term>Homogeneous mixtures</term>
<term>Interdiffusion</term>
<term>Kinetic model</term>
<term>Mass transfer with reaction</term>
<term>Model reaction</term>
<term>Modeling</term>
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<term>Theoretical study</term>
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<term>Matériau modifié</term>
<term>EVA</term>
<term>Bicouche</term>
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<term>Durcissement(matière plastique)</term>
<term>Diamine</term>
<term>Réaction modèle</term>
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<term>Transfert matière avec réaction</term>
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<term>Modélisation</term>
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<front><div type="abstract" xml:lang="en">A model reactive system was defined for studying experimentally and by simulation the competition between reaction and diffusion of two low molecular weight reactants, 2,3-epoxypropyl-phenylether (EPPE) and dipentylamine (DPA). Both reactants are miscible in a high-viscous molten polymer, poly(ethylene-co-vinyl acetate) (EVA). The comparison of the experimental rates of reaction for initially homogeneous samples and bi-layer unpremixed samples proved that the reaction was diffusion controlled. A kinetic model of the epoxy-amine reaction was coupled to mutual diffusion coefficients of reacting species in a transport model and the simulations were compared with experimental results. The diffusion/reaction process was finally related to typical mixing conditions encountered in reactive polymer processes. For the model reactive system, the simulations have established that actual mixing conditions with shear rate values encountered in polymer processing machines, were able to homogenize the system in less than 10 s. In other words, the reaction should no longer be controlled by molecular diffusion as soon as a relatively low intensity mixing is applied (shear rate > 10 s<sup>-1</sup>
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<fA14 i1="03"><s1>CNRS UMR5223, Ingénierie des Matériaux Polymères: Laboratoire des Matériaux Polymères et Biomatériaux</s1>
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<fC01 i1="01" l="ENG"><s0>A model reactive system was defined for studying experimentally and by simulation the competition between reaction and diffusion of two low molecular weight reactants, 2,3-epoxypropyl-phenylether (EPPE) and dipentylamine (DPA). Both reactants are miscible in a high-viscous molten polymer, poly(ethylene-co-vinyl acetate) (EVA). The comparison of the experimental rates of reaction for initially homogeneous samples and bi-layer unpremixed samples proved that the reaction was diffusion controlled. A kinetic model of the epoxy-amine reaction was coupled to mutual diffusion coefficients of reacting species in a transport model and the simulations were compared with experimental results. The diffusion/reaction process was finally related to typical mixing conditions encountered in reactive polymer processes. For the model reactive system, the simulations have established that actual mixing conditions with shear rate values encountered in polymer processing machines, were able to homogenize the system in less than 10 s. In other words, the reaction should no longer be controlled by molecular diffusion as soon as a relatively low intensity mixing is applied (shear rate > 10 s<sup>-1</sup>
).</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001D10A05B</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Epoxyde résine</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Epoxy resin</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Epóxido resina</s0>
<s5>01</s5>
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<s5>02</s5>
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<fC03 i1="02" i2="X" l="ENG"><s0>Modified material</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Material modificado</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>EVA</s0>
<s2>NK</s2>
<s5>03</s5>
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<fC03 i1="03" i2="X" l="ENG"><s0>EVA</s0>
<s2>NK</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>EVA</s0>
<s2>NK</s2>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Bicouche</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Bilayers</s0>
<s5>04</s5>
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<s5>05</s5>
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<fC03 i1="05" i2="3" l="ENG"><s0>Homogeneous mixtures</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Durcissement(matière plastique)</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Curing(plastics)</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Endurecimiento(material plástico)</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Diamine</s0>
<s1>ENT</s1>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Diamine</s0>
<s1>ENT</s1>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Diamina</s0>
<s1>ENT</s1>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Réaction modèle</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Model reaction</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Reacción modelo</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Diffusion mutuelle</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Interdiffusion</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Difusión mútua</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Transfert matière avec réaction</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Mass transfer with reaction</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Transferencia materia con reacción</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Cinétique chimique</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Chemical reaction kinetics</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Cinética química</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Modélisation</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Modeling</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Modelización</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Modèle cinétique</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Kinetic model</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Modelo cinético</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Etude théorique</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Theoretical study</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Estudio teórico</s0>
<s5>15</s5>
</fC03>
<fN21><s1>337</s1>
</fN21>
<fN44 i1="01"><s1>PSI</s1>
</fN44>
<fN82><s1>PSI</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 07-0519851 INIST</NO>
<ET>Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer</ET>
<AU>BELLA (Redha); FENOUILLOT (Francoise); CASSAGNAU (Philippe); FALK (Laurent)</AU>
<AF>IMP/LMM Laboratoire des Matériaux Macromoléculaires, CNRS UMR 5223, INSA-Lyon/69621 Villeurbanne/France (1 aut., 2 aut.); Université de Lyon/Lyon, 69003/France (3 aut.); CNRS UMR5223, Ingénierie des Matériaux Polymères: Laboratoire des Matériaux Polymères et Biomatériaux/69622 Villeurbanne/France (3 aut.); Laboratoire des Sciences du Génie Chimique (LSGC), UMR 6811, ENSIC Nancy/France (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Polymer : (Guildford); ISSN 0032-3861; Coden POLMAG; Royaume-Uni; Da. 2007; Vol. 48; No. 23; Pp. 6902-6912; Bibl. 27 ref.</SO>
<LA>Anglais</LA>
<EA>A model reactive system was defined for studying experimentally and by simulation the competition between reaction and diffusion of two low molecular weight reactants, 2,3-epoxypropyl-phenylether (EPPE) and dipentylamine (DPA). Both reactants are miscible in a high-viscous molten polymer, poly(ethylene-co-vinyl acetate) (EVA). The comparison of the experimental rates of reaction for initially homogeneous samples and bi-layer unpremixed samples proved that the reaction was diffusion controlled. A kinetic model of the epoxy-amine reaction was coupled to mutual diffusion coefficients of reacting species in a transport model and the simulations were compared with experimental results. The diffusion/reaction process was finally related to typical mixing conditions encountered in reactive polymer processes. For the model reactive system, the simulations have established that actual mixing conditions with shear rate values encountered in polymer processing machines, were able to homogenize the system in less than 10 s. In other words, the reaction should no longer be controlled by molecular diffusion as soon as a relatively low intensity mixing is applied (shear rate > 10 s<sup>-1</sup>
).</EA>
<CC>001D10A05B</CC>
<FD>Epoxyde résine; Matériau modifié; EVA; Bicouche; Mélange homogène; Durcissement(matière plastique); Diamine; Réaction modèle; Diffusion mutuelle; Transfert matière avec réaction; Cinétique chimique; Modélisation; Modèle cinétique; Etude théorique</FD>
<ED>Epoxy resin; Modified material; EVA; Bilayers; Homogeneous mixtures; Curing(plastics); Diamine; Model reaction; Interdiffusion; Mass transfer with reaction; Chemical reaction kinetics; Modeling; Kinetic model; Theoretical study</ED>
<SD>Epóxido resina; Material modificado; EVA; Endurecimiento(material plástico); Diamina; Reacción modelo; Difusión mútua; Transferencia materia con reacción; Cinética química; Modelización; Modelo cinético; Estudio teórico</SD>
<LO>INIST-11463.354000162091170170</LO>
<ID>07-0519851</ID>
</server>
</inist>
</record>

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Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer

Characterization and modelling of diffusion and reaction of low molecular weight reactants in molten polymer

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