Finding hidden structures / Kamakski Christopher in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2017)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2017) . - p. 84-88 Titre : Finding hidden structures : Methods of determining emulsion particle morphology reviewed Type de document : texte imprimé Auteurs : Kamakski Christopher, Auteur Année de publication : 2017 Article en page(s) : p. 84-88 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse mécanique dynamique Analyse spectrale Analyse thermique Caractérisation Core-Shell Emulsions Microscopie Morphologie (matériaux) Polyacrylates Polyuréthanes Résonance magnétique nucléaire Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : The use of emulsions with heterogeneous polymer particles can greatly enhance water-borne coating performance. Techniques range from incorporating inorganic nanoparticles to combining similar polymers. The use of various characterisation methods for systematic analysis of structure and composition is described. Note de contenu : - Summary of methods for studying morphology - The scope of differential scanning calorimetry - Distinguishing polymers with similar characteristics - DMA can also indentify hidden structures - The value and limitations of TEM - Other forms of microscopy - Spectroscopy methods analyse only outer layers - Solid state NMR analysis - Logical analysis procedure is necessary - FIGURES : 1. Schematic representation of different morphology structure (a) gradient (b) raspberry (c) sandwich (de) inclusion (e) core-shell - 2. Idealised states of phase separation within emulsion particles and examples of their corresponding derivative modulated DSC traces - DMA traces showing the difference in tan delta of single phase and core-shell polymer - 4. TEM micrographs of the emulsions particles (a) core-shell, (b) inclusion (c) multi-lobed - 5. SEM micrographs of (a) raspberry type, (b) film hybrid emulsion, (c) hollow polymer - 6. AFM image showing topography of (a) acrylate core-shell emulsion, (b & c) acrylate core/polyurethane shell - 7. Schematic diagram for arriving at the characterisation techniques most useful for morphology identification En ligne : https://drive.google.com/file/d/1zmIVnpSYeq8_a7YVhLDs1vB1AOjPOah-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27952 [article]

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