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Auteur Bart A. J. Noordover
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Laboratory of Polymer Materials - Eindhoven - Netherlands
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Amorphous polyamide coating resins from sugar-derived monomers / Juliën L. J. van Velthoven in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)
[article]
Titre : Amorphous polyamide coating resins from sugar-derived monomers Type de document : texte imprimé Auteurs : Juliën L. J. van Velthoven, Auteur ; Bart A. J. Noordover, Auteur ; Jan Meuldijk, Auteur Année de publication : 2016 Article en page(s) : p. 613-622 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymérisation
Matériaux amorphes
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Ressources renouvelables
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : In this article, the synthesis of bio-based polyamides for powder coating applications and their evaluation in a solventborne coating system are reported. The Mn values of the resins were between 3000 and 4000 g mol−1 and the resins displayed Tg values from 60 to 80°C. Both amine and carboxylic acid functionalities (total ~0.6 mmol g−1) were introduced for curing purposes. The resins were cured with triglycidyl isocyanurate (TGIC) or N,N,N′,N′-tetrakis(2-hydroxyethyl)adipamide (Primid XL-552). The curing reaction was followed using rheology which indicated that TGIC achieved higher reaction rates and higher gel contents. The DSC analysis of the cured disks showed that all cured samples were amorphous as is desired for the targeted coating application. The resins required a curing temperature higher than 150°C. Aluminum panels were coated using a solventborne approach and the coatings were cured at 180°C during 1 h. Dewetting was observed on all panels. Network formation was adequate for an amine-functional resin cured with TGIC as indicated by solvent resistance testing. In conclusion, the developed bio-based polyamide resins are promising materials to be used as binder resins in powder coating applications. DOI : 10.1007/s11998-016-9783-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9783-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26742
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Code-barres Cote Support Localisation Section Disponibilité 18223 - Périodique Bibliothèque principale Documentaires Disponible Improving the adhesion robustness of 2K Michael addition coating systems / Bart A. J. Noordover in COATINGS TECH, Vol. 16, N° 10 (10/2019)
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Titre : Improving the adhesion robustness of 2K Michael addition coating systems Type de document : texte imprimé Auteurs : Bart A. J. Noordover, Auteur ; N. Looji, Auteur ; J. Kalis, Auteur ; R. Koeken, Auteur ; Fred van Wijk, Auteur ; Elwin de Wolf, Auteur ; M. Gessner, Auteur ; E. McCracken, Auteur ; B. Degooyer, Auteur ; R. Brinkhuis, Auteur ; Y. Zhang, Auteur ; T. Buser, Auteur ; Florian Lunzer, Auteur Année de publication : 2019 Article en page(s) : p. 44-48 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Formulation (Génie chimique)
Michael, Addition deL'addition de Michael ou réaction de Michael est une réaction qui permet la création de liaisons carbone-carbone, voire de liaisons carbone-soufre. Il s'agit de l'addition nucléophile d'un carbanion sur un composé carbonylé α,β insaturé (aldéhyde, cétone et même ester α,β insaturé, des nitriles et des amides α,β insaturés pouvant aussi être utilisés). Elle appartient à la famille des additions nucléophiles conjuguées.
Cette réaction doit son nom au chimiste américain Arthur Michael.
Plan d'expérience
Polyester maloné
Primaire (revêtement)
Revêtements bi-composant
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Recently, two-component (2K) Michael Addition-based coating systems providing fast drying at room temperature in combination with tunable open time and very long pot life have entered the market. Adhesion robustness over a variety of substrates is an important point of attention for such fast drying and inherently rather apolar coating systems. Here, we present a study that resulted in new malonated polyester resins facilitating a significantly improved adhesion performance of the Michael Addition-based coatings, especially over epoxy-amine and polyurethane primer substrates. Notably, the introduction of hydroxyl groups is an effective way to improve properties such as wet adhesion. Note de contenu : - Fig. 1 : Michael addition reaction between malonate- and acryloyl-functional resins
- Fig. 2 : DoE responses : Persoz hardness and QCT wet adhesion a.f.o. MPE2 and MPE3 contents (remainder of donor composition consists of MPE1). Wet adhesion was determined on a representative Marine and Heavy Duty Protective type epoxy primer
- Table 1 : Main properties of malonate polyesters used in this study
- Table 2 : Standard white pigmented paint formulationused in this study
- Table 3 : DoE runs and results
- Table 4 : Testing of malonate resins/resin mixtures in a white pigmented RMA curable compositionEn ligne : https://drive.google.com/file/d/1yAwPcytI075ANDCt7A_t9BpU6YkCHDUO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33251
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Code-barres Cote Support Localisation Section Disponibilité 21248 - Périodique Bibliothèque principale Documentaires Disponible Phase separation in Michael addition curable coatings to enhance flexibility and adhesion robustness / Bart A. J. Noordover in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
[article]
Titre : Phase separation in Michael addition curable coatings to enhance flexibility and adhesion robustness Type de document : texte imprimé Auteurs : Bart A. J. Noordover, Auteur ; Yujing Zhang, Auteur ; Richard Brinkhuis, Auteur ; Martin Bosma, Auteur ; Florian Lunzer, Auteur ; Patrice Roose, Auteur ; Luc Lindekens, Auteur Année de publication : 2023 Article en page(s) : p. 1835-1844 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Analyse thermomécanique dynamique
Caractérisation
Formulation (Génie chimique)
Michael, Addition deL'addition de Michael ou réaction de Michael est une réaction qui permet la création de liaisons carbone-carbone, voire de liaisons carbone-soufre. Il s'agit de l'addition nucléophile d'un carbanion sur un composé carbonylé α,β insaturé (aldéhyde, cétone et même ester α,β insaturé, des nitriles et des amides α,β insaturés pouvant aussi être utilisés). Elle appartient à la famille des additions nucléophiles conjuguées.
Cette réaction doit son nom au chimiste américain Arthur Michael.
Polyester maloné
Réticulation (polymérisation)
Revêtements organiques
Séparation de phases
Souplesse (mécanique)
Vernis -- Propriétés mécaniquesIndex. décimale : 667.7 Cires, laques, vernis Résumé : Polyether-based acryloyl-functional acceptor binders were combined with malonated polyester donor resins in base-catalyzed carbon-Michael addition curable paint systems. The high equivalent weight, flexible polyether-based acceptors afford a multi-phase morphology in the final coating film, which is formed through polymerization-induced incompatibility and phase separation. Additional thermal transitions were observed in dynamic mechanical thermal analysis experiments, indicating the presence of low Tg domains in the highly crosslinked continuous phase. As a consequence, these novel network compositions show strongly improved ductility and adhesion robustness over a range of substrate types. Non-reactive polyether-based binders, lacking covalent bonding to the crosslinked continuous phase, only lead to limited, less robust property improvement. It was demonstrated that acceptor binders based on poly(propylene glycol) segments are highly effective in enhancing flexibility while maintaining a high coating hardness. Both clearcoat and pigmented topcoat formulations were developed showing similar performance improvements, opening the door to benefits in a variety of application fields. Note de contenu : - Experimental section : Materials
- Preparation of malonated polyester MPE1
- RMA coating formulation and application
- Characterization methods
- Results and discussion : Polymerization-induced phase separation using acryloyl-functional polyethers - Mechanical and adhesion properties of multi-phase RMA curable compositions - RMA reactive vs non-reactive polyether segments - Reactive polyether-containing pigmented RMA curable compositions
- Table 1 : Michael addition curable clearcoat formulation containing PPG2k UA
- Table 2 : Polyether-based UAs studied in RMA coatings
- Table 3 : Testing results of multi-phase RMA curable compositions
- Table 4 : Testing results of multi-phase RMA curable compositions
- Table 5 : Adhesion testing results on different types of substrates for pigmented Michael addition curable compositions based on MPE and DiTMPTA + acceptor resin 2 (% on total resin solids), using a carbonate-blocked strong base as catalystDOI : https://doi.org/10.1007/s11998-023-00804-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00804-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40164
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Code-barres Cote Support Localisation Section Disponibilité 24337 - Périodique Bibliothèque principale Documentaires Disponible Resins and additives for powder coatings and alkyd paints, based on renewable resources / J. van Haveren in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 2 (06/2007)
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Titre : Resins and additives for powder coatings and alkyd paints, based on renewable resources Type de document : texte imprimé Auteurs : J. van Haveren, Auteur ; E. A. Oostveen, Auteur ; F. Miccichè, Auteur ; Bart A. J. Noordover, Auteur ; C. E. Koning, Auteur ; R. A. T. M. van Benthem, Auteur ; A. E. Frissen, Auteur ; J. G. J. Weijnen, Auteur Année de publication : 2007 Article en page(s) : p. 177-186 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diluants
Haut extrait sec
Polyesters
Ressources renouvelables
Revêtement poudre -- Additifs:Peinture poudre -- Additifs
Rhéologie
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : Due to limited fossil resources and an increased need for environmentally friendly, sustainable technologies, the importance of using renewable feedstocks in the paint and coatings area will increase in the decades to come. This paper highlights some of the perspectives in this area. Alkyd resins for high-solid paints and reactive diluents, completely based on commercially available renewable resources, were prepared and characterized. Alkyd resins based on sucrose and unsaturated fatty acids or oils showed a low intrinsic viscosity, making them suitable to be used in high-solid alkyd paints. Reactive diluents based on similar starting materials showed excellent properties with regard to thinning behavior and effect on drying characteristics. Powder coating polyester resins were synthesized, starting from isosorbide and diacids. Polyester resins with glass transition temperatures up to 70°C were obtained. Incorporation of small amounts of other diols and trifunctional components was found to improve color and coating properties. In order to create completely renewable resin systems, the development of renewable drying agents for alkyds and crosslinkers for powder coatings is in progress. DOI : 10.1007/s11998-007-9020-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9020-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3659
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Code-barres Cote Support Localisation Section Disponibilité 008269 - Périodique Bibliothèque principale Documentaires Disponible