Article (Scientific journals)
Reinforced poly(hydroxyurethane) thermosets as high performance adhesives for aluminum substrates
Panchireddy, Satyannarayana; Thomassin, Jean-Michel; Grignard, Bruno et al.
2017In Polymer Chemistry, 8 (38), p. 5897-5909
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Keywords :
nanocomposite; coating; polyurethane
Abstract :
[en] Poly(hydroxyurethane) (PHU) thermosets reinforced with (functional) nanofillers were developed to design high performance adhesives for bare aluminum. Solvent-free cyclic carbonate/amine/PDMS formulations loaded with native, epoxy- or cyclic carbonate-functionalized ZnO nanofillers were premixed before deposition and thermal curing onto Al. The results highlight that the addition of PDMS prevents PHUs from delamination of the Al surface by increasing the adhesive hydrophobicity and thus limiting the water uptake. The dispersion of functional fillers within PHUs improves their thermal and mechanical properties. Benchmarking of the adhesive performances of the reinforced PHU glues with existing PHU formulations attests for the benefits of dispersing functional fillers and PDMS within the resin and evidences a 270% increase of the shear strength of reinforced PHUs adhesives compared to formulations reported in the literature.
Research center :
CESAM Complex and Entangled Systems from Atoms to Materials (CESAM)
Center for Education and Research on Macromolecules (CERM)
MolSys - Molecular Systems - ULiège
Structural Biological Chemistry Laboratory (SBCL)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Panchireddy, Satyannarayana ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Thomassin, Jean-Michel ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Grignard, Bruno ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Damblon, Christian ;  University of Liège (ULiège), Molecular Systems (MolSys), Structural Biological Chemistry Laboratory (SBCL)
Tatton, Andrew;  University of Liège (ULiège), Molecular Systems (MolSys), Structural Biological Chemistry Laboratory (SBCL)
Jérôme, Christine  ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Reinforced poly(hydroxyurethane) thermosets as high performance adhesives for aluminum substrates
Publication date :
14 October 2017
Journal title :
Polymer Chemistry
ISSN :
1759-9954
eISSN :
1759-9962
Publisher :
Royal Society Chemistry, Cambridge, United Kingdom
Volume :
8
Issue :
38
Pages :
5897-5909
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
The Walloon Region in the frame of the Flycoat and CO2Green projects
Available on ORBi :
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