Article (Scientific journals)
On the interplay between matter transport and structure formation at epoxy-hardener interfaces visualized by scanning Brillouin microscopy
Philipp, Martine; Müller, Ulrich; Sanctuary, Roland et al.
2011In Soft Matter, 7 (1), p. 118-124
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Keywords :
diffusion; convection; epoxy network swelling; self-healing mechanisms; Scanning Brillouin microscopy
Abstract :
[en] Structural developments are investigated in network-forming reactive polymers by time- and 10 space-resolved scanning Brillouin microscopy. Hypersonic properties are probed to reveal the subtle interplay between molecular transport, dissolution, polymerization and network defects in the vicinity of the interface between reactants, which are either pure epoxy resin or various epoxy resin-hardener mixtures, topped by a layer of pure hardener. The trans-interfacial polymerization produces heterogeneous epoxy structures of either gelatinous or glassy nature. Interestingly, the 15 hardener can easily penetrate and swell these networks and epoxy network fragments can be transported over several millimeters by convective flow. The observed features may be used to form interpenetrating networks during self-healing procedures.
Disciplines :
Materials science & engineering
Physics
Identifiers :
UNILU:UL-ARTICLE-2011-092
Author, co-author :
Philipp, Martine ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Müller, Ulrich ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Sanctuary, Roland ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Kieffer, John;  Department of Materials Science and Engineering, University of Michigan, Ann Arbor, United States
Possart, Wulff;  Werkstoffwissenschaften, Universität des Saarlandes, Saarbrücken, Germany
Krüger, Jan-Kristian ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Language :
English
Title :
On the interplay between matter transport and structure formation at epoxy-hardener interfaces visualized by scanning Brillouin microscopy
Publication date :
2011
Journal title :
Soft Matter
ISSN :
1744-6848
Publisher :
Royal Society of Chemistry, Cambridge, United Kingdom
Volume :
7
Issue :
1
Pages :
118-124
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 19 December 2013

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