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Polymer Bulletin

, Volume 75, Issue 5, pp 1915–1930 | Cite as

Waterborne polyurethane/Fe3O4-synthetic talc composites: synthesis, characterization, and magnetic properties

  • Leonardo M. dos Santos
  • Rosane Ligabue
  • Angela Dumas
  • Christophe Le Roux
  • Pierre Micoud
  • Jean-François Meunier
  • François Martin
  • Marta Corvo
  • Pedro Almeida
  • Sandra Einloft
Original Paper
  • 257 Downloads

Abstract

Nano-Fe3O4-synthetic talc gel was used as filler in the synthesis of waterborne polyurethane/Fe3O4-synthetic talc nanocomposites. This filler presents numerous edges (Si–O and Mg–O) and OH groups easily forming hydrogen bonds and polar interaction with water conferring hydrophilic character, consequently improving filler dispersion within a water-based matrix. Yet, the use of waterborne polyurethane (WPU) as matrix must be highlighted due to its environmentally friendly characteristics and low toxicity compared to solvent-based product. Fe3O4-synthetic talc-nanofillers were well dispersed into the polyurethane matrix even at high filler content as supported by XRD and TEM analyses. NMR indicates the interaction of filler OH groups with the matrix. For all nanocomposites, one can see a typical ferromagnetic behavior below Curie temperature (about 120 K) and a superparamagnetic behavior above this temperature. The use of Fe3O4-synthetic talc for obtaining magnetic nanocomposites resulted in improved materials with superior mechanical properties compared to solvent-based nanocomposites.

Keywords

Waterborne polyurethane Nanocomposites Synthetic Fe3O4-talc Physical mixture 

Notes

Acknowledgements

LS (No Proc.: BEX 6547/15-0) thanks CAPES, SE, and RL acknowledge CNPq for DT grant. We acknowledge LabNMR-CENIMAT at FCT-UNL and RNRMN for access to the facilities. RNRMN is supported with funds from the Foundation for Science and Technology. This work is also funded by FEDER funds through the COMPETE 2020 Programme and National Funds through FCT-Portuguese Foundation for Science and Technology under the Project Number POCI-01-0145-FEDER-007688, Reference UID/CTM/50025.

Supplementary material

289_2017_2133_MOESM1_ESM.docx (1.7 mb)
Supplementary material 1 (DOCX 1772 kb)

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Leonardo M. dos Santos
    • 1
  • Rosane Ligabue
    • 1
    • 2
  • Angela Dumas
    • 3
  • Christophe Le Roux
    • 3
  • Pierre Micoud
    • 3
  • Jean-François Meunier
    • 4
  • François Martin
    • 3
  • Marta Corvo
    • 5
  • Pedro Almeida
    • 5
    • 6
  • Sandra Einloft
    • 1
    • 2
  1. 1.Post-Graduation Program in Materials Engineering and TechnologyPontifical Catholic University of Rio Grande do Sul-PUCRSPorto AlegreBrazil
  2. 2.School of ChemistryPontifical Catholic University of Rio Grande do Sul-PUCRSPorto AlegreBrazil
  3. 3.ERT 1074 Géomatériaux-GET UMR 5563 CNRS-Université de ToulouseToulouseFrance
  4. 4.Laboratoire de Chimie de CoordinationUniversité de ToulouseToulouseFrance
  5. 5.CENIMAT/I3N, Universidade Nova de LisboaCaparicaPortugal
  6. 6.Área Departamental de Física, Instituto Superior de Engenharia de LisboaInstituto Politécnico de LisboaLisbonPortugal

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