LrgpV1, Main, Merge, bibRecord, 000301

Preparation of highly concentrated bitumen emulsions by catastrophic phase inversion: Follow-up of the emulsification process

Identifieur interne : 000301 ( Main/Merge ); précédent : 000300; suivant : 000302

Preparation of highly concentrated bitumen emulsions by catastrophic phase inversion: Follow-up of the emulsification process

Auteurs : Edward Arenas-Calderon [France] ; Véronique Sadtler [France] ; Philippe Marchal [France] ; Lionel Choplin [France] ; Frédéric Delfosse [France] ; Michel Maze [France]

Source :

Colloids and Surfaces A: Physicochemical and Engineering Aspects [ 0927-7757 ] ; 2014-09.

RBID : Hal:hal-01275130

Abstract

This study focuses on the mechanisms of bitumen emulsification and on the impact of the formulation, when emulsification is carried out in the area of high internal phase ratio (0.9). Kinetics of emulsification were determined using systemic rheology coupled with optical microscopy observations. Microscopic observations revealed a catastrophic phase inversion with formation of abnormal multiple emulsions, occurring very quickly after contacting the bitumen with the aqueous phase containing the surfactant. The direct emulsion thus obtained is then refined during a subsequent agitation step. The viscosity follow-up during the emulsification highlights four steps in the kinetic of catastrophic phase inversion, which have been related to morphological characteristics of the dispersions observed by optical microscopy.

Url:

https://hal.univ-lorraine.fr/hal-01275130

DOI: 10.1016/j.colsurfa.2014.02.030

Links toward previous steps (curation, corpus...)

to stream Hal, to step Corpus: 000931
to stream Hal, to step Curation: 000931
to stream Hal, to step Checkpoint: 000278

Links to Exploration step

Hal:hal-01275130

Le document en format XML

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<orgName type="university">Université de Lorraine</orgName>
</affiliation>
</author>
<author><name sortKey="Delfosse, Frederic" sort="Delfosse, Frederic" uniqKey="Delfosse F" first="Frédéric" last="Delfosse">Frédéric Delfosse</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-228893" status="INCOMING"><orgName>Centre de recherche EUROVIA Management</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Maze, Michel" sort="Maze, Michel" uniqKey="Maze M" first="Michel" last="Maze">Michel Maze</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-228893" status="INCOMING"><orgName>Centre de recherche EUROVIA Management</orgName>
<desc><address><country key="FR"></country>
</address>
</desc>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.1016/j.colsurfa.2014.02.030</idno>
<series><title level="j">Colloids and Surfaces A: Physicochemical and Engineering Aspects</title>
<idno type="ISSN">0927-7757</idno>
<imprint><date type="datePub">2014-09</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">This study focuses on the mechanisms of bitumen emulsification and on the impact of the formulation, when emulsification is carried out in the area of high internal phase ratio (0.9). Kinetics of emulsification were determined using systemic rheology coupled with optical microscopy observations. Microscopic observations revealed a catastrophic phase inversion with formation of abnormal multiple emulsions, occurring very quickly after contacting the bitumen with the aqueous phase containing the surfactant. The direct emulsion thus obtained is then refined during a subsequent agitation step. The viscosity follow-up during the emulsification highlights four steps in the kinetic of catastrophic phase inversion, which have been related to morphological characteristics of the dispersions observed by optical microscopy.</div>
</front>
</TEI>
</record>

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Preparation of highly concentrated bitumen emulsions by catastrophic phase inversion: Follow-up of the emulsification process

Preparation of highly concentrated bitumen emulsions by catastrophic phase inversion: Follow-up of the emulsification process

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