Adhesion promotion for UV coatings and inks onto difficult plastic substrates / Rebecca Banton in COATINGS WORLD, Vol. 23, N° 7 (07/2018)  

[article]  inCOATINGS WORLD > Vol. 23, N° 7 (07/2018) Titre : Adhesion promotion for UV coatings and inks onto difficult plastic substrates Type de document : texte imprimé Auteurs : Rebecca Banton, Auteur ; Brian Casey, Auteur ; Christian Maus, Auteur ; Matthew Carroll, Auteur Année de publication : 2018 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère époxy acrylate Encre Essais (technologie) Essais d'adhésion Formulation (Génie chimique) Liants Matières plastiques -- Revêtement Polyesters Promoteurs d'adhésion Revêtements -- Séchage sous rayonnement ultraviolet Revêtements organiques Viscosité Index. décimale : 667.9 Revêtements et enduits Résumé : Ensuring proper adhesion between energy-curable coatings and non-absorptive substrates has long been a significant challenge. Whether it’s high shrinkage seen with the coating itself or low surface energy of the substrate’s surface, multiple factors can negatively influence the adhesion properties of a finished formulation. Past solutions to overcome these various hurdles have included the use of pretreated substrates and the addition of solventborne adhesion promoters. However, escalating costs, increased processing times, and regulatory concerns have forced formulators to start searching for alternate solutions. This paper discusses the incorporation of specialty co-binder resins to improve adhesion onto difficult plastic substrates. Because these novel adhesion promoters are solvent-free, low viscosity, and widely compatible, formulators can tackle the industry’s problem without compromising the performance of their energy-curable coatings. Note de contenu : - Plastic substrates - Definition and mechanisms of adhesion - Parameters of adhesion - Co-binder technology - Experimental design - Polyester formulation results : Viscosity - Tape test - Epoxy acrylate formulation results : Viscosity - Tape test - Conclusion - Polyester formulation - Epoxy formulation - Fig. 1 : Amino-functional alkoxysilane - Fig. 2 : General reaction for the manufacture of specially modified polyester resins - Fig. 3 : General reaction for the manufacture of ketone aldehyde resins - Fig. 4 : Initial and stability viscosity for polyester formulations - Fig. 5 : Initial and stability viscosity for polyester formulations - Fig. 6 : Initial and stability viscosity for polyester formulations - Fig. 7 : Initial and stability tape test results on OPP for polyester formulations - Fig. 8 : Initial and stability tape test results on Cast PP for polyester formulations - Fig. 9 : Initial and stability tape test results on corrugated plastic for polyester formulations - Fig. 10 : Initial and stability tape test results on Metalized PET for polyester formulations - Fig. 11 : Initial and stability tape test results on Untreated OPP for polyester formulations - Fig. 12 : Initial and stability viscosity for epoxy acrylate formulations - Fig. 13 : Initial and stability viscosity for epoxy acrylate formulations - Fig. 14 : Initial and stability viscosity for epoxy acrylate formulations - Fig. 15 : Initial and stability tape test results on OPP for epoxy acrylate formulations - Fig. 16 : Initial and stability tape test results on Cast PP for epoxy acrylate formulations.formulations - Fig. 17 : Initial and stability tape test results on corrugated plastic for epoxy acrylate formulations.formulations - Fig. 18 : Initial and stability tape test results on Metalized PET for epoxy acrylate formulations - Fig. 19 : Initial and stability tape test results on Untreated OPP for epoxy acrylate formulations - Table 1 : Blank – Polyester formulation - Table 2 : Blank – Epoxy acrylate formulation En ligne : https://www.coatingsworld.com/issues/2018-07-01/view_features/adhesion-promotion [...] Format de la ressource électronique : Html Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32518 [article]

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Advance in basic resins for cathodic electrodeposition coating / Lijun Chen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4602 (11/2014)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 204, N° 4602 (11/2014) . - p. 26-28 Titre : Advance in basic resins for cathodic electrodeposition coating Type de document : texte imprimé Auteurs : Lijun Chen, Auteur ; Wen Li, Auteur ; Wei Jiang, Auteur Année de publication : 2014 Article en page(s) : p. 26-28 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion Copolymère époxy acrylate Dépôt électrolytique Epoxydes Fluoropolymères Liants Organosilicones Polyacryliques Polymères cationiques Polyuréthanes Pulvérisation cathodique Index. décimale : 667.9 Revêtements et enduits Résumé : Cathodic electrodeposition (CED) coating was developed as a new type of industrial application for an anticorrosion coating since the mid 1970s. It has many merits, such as little environmental pollution, no fire hazard, excellent corrosion resistance, high throwing power and a degree of automation for coatings. Thus, it is widely used in automotives, light industry, agricultural machinery, household appliances, instruments, crafts, building materials and so on. CED coating if often composed of water-soluble cationic resin, pigments and extenders, solvent and neutraliser, which is made by grinding. The cationic resin is the binder of the CED coating and is also the colour developing agent, which is vital to the properties of coating and its film. Thus, the cationic resin is one of the most important components for CED coating. Presently, the main research focuses on increasing kinds of cationic resin and improving the properties of cationic resin. In this paper, the advances of the cationic resin is reviewed. Note de contenu : - ADVANCE OF BASIC RESIN IN CED COATING : Epoxy resin - Acrylic resin - Polyurethane resins - Composite resins of epoxy and acrylate - Fluorocarbon resins - Organic silicon modified resins En ligne : https://drive.google.com/file/d/153bvIC4u7knkAUqiPwr3Ygriz0pSJ-0p/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22419 [article]

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Cellulose nanocrystal (CNC)-based nanocomposites for UV curable high-solid coating systems / Alireza Kaboorani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 5 (09/2017)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 5 (09/2017) . - p. 1137-1145 Titre : Cellulose nanocrystal (CNC)-based nanocomposites for UV curable high-solid coating systems Type de document : texte imprimé Auteurs : Alireza Kaboorani, Auteur ; Nicolas Auclair, Auteur ; Bernard Riedl, Auteur ; Omid Hosseinaei, Auteur ; Siqun Wang, Auteur Année de publication : 2017 Article en page(s) : p. 1137-1145 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bois -- Vernis Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules. Copolymère époxy acrylate Cristaux Haut extrait sec Hydrophobie Nanoindentation Nanoparticules Revêtements -- Séchage sous rayonnement ultraviolet Revêtements intérieurs Rugosité Stabilité thermique Statistique Vernis -- Propriétés mécaniques Index. décimale : 667.9 Revêtements et enduits Résumé : Demand for durable clear wood coatings is on the rise. Cellulose nanocrystals (CNC) constitute an organic nanomaterial widely studied in polymer composites for its reinforcing effect. In this study, CNC was used to enhance the performance of a UV curable high-solid content coating system intended for indoor environments. The CNC surface was modified by a cationic surfactant since the coating system was hydrophobic resin-based requiring hydrophobic nanomaterial reinforcement. Modified CNC was mixed with the coating system using a high-speed mixer and the ultrasonication technique. Mechanical, thermal and morphological properties and curing behavior of the newly developed UV-curing coatings were assessed. Inclusion of CNC in the coating increased the mechanical properties (hardness and reduced modulus) of the coating system to a large extent. Thermal stability of the coating system was also improved by CNC addition. The CNC did not affect the curing behavior of the coating, in contrast to most inorganic nanomaterials. The CNC dispersed well in the matrix at 1% loading. Results of this study show that CNC can be used successfully with high-solid content coating systems. Note de contenu : - EXPERIMENTAL : Materials - METHODS : CNC surface modification - Preparation of UV-curable formulations - CHARACTERIZATIONS : Thermal stability - Photodifferential scanning calorimetry (photo-DSC) - Atomic force microscopy (AFM) - Nanoindentation - Statistical analyses - RESULTS : Thermal stability - Surface roughness - Curing behavior - Mechanical properties DOI : 10.1007/s11998-017-9929-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9929-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29148 [article]

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Effect of acrylation on the properties of waterborne epoxy : evaluation of physicochemical, thermal, mechanical and morphological properties / Sukanya Pradhan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 515-526 Titre : Effect of acrylation on the properties of waterborne epoxy : evaluation of physicochemical, thermal, mechanical and morphological properties Type de document : texte imprimé Auteurs : Sukanya Pradhan, Auteur ; Smita Mohanty, Auteur ; Sanjay K. Nayak, Auteur Année de publication : 2018 Article en page(s) : p. 515-526 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion Calorimétrie Copolymère époxy acrylate Copolymères -- Synthèse Formulation (Génie chimique) Fourier, Spectroscopie infrarouge à transformée de Morphologie (matériaux) Résonance magnétique nucléaire Revêtements -- Analyse Revêtements en phase aqueuse Thermogravimétrie Index. décimale : 667.9 Revêtements et enduits Résumé : The present work addresses the critical requirements for the coating industry such as developing the sustainability of biobased materials and simultaneously achieving a balanced combination of coating properties. In this study, acrylated epoxidized soybean oil (AESO) has been successfully synthesized from epoxidized soybean oil and acrylic acid. Subsequently, AESO was modified using a biobased long chain diacid (Pripol-1009) with the assistance of a water/ethanol blend to form waterborne epoxy acrylate (WBEA). The properties of the cured WBEA with 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane as initiator were studied through spectral analysis, coating properties evaluation, corrosion resistance, and morphological and thermal analysis. The results revealed that WBEA exhibited relatively better mechanical, thermal and corrosion resistance characteristics over cured waterborne epoxy. Keywords Waterborne Acrylate Epoxy Pripol-1009 Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of waterborne epoxy (WBE) - Synthesis of waterborne epoxy acrylate (WBEA) - Formulation of coatings - CHARACTERIZATION : Physicochemical characteristics - Spectral analysis - Swelling and crosslink density study - Coating properties - Morphological analysis - RESULTS AND DISCUSSION : Physicochemical characteristics - Proton NMR analysis - Differential scanning calorimetry analysis - Fourier transform infrared spectroscopic (FTIR) analysis - Swelling and crosslink density study - Coatings properties - Corrosion resistance - Morphological analysis - Thermogravimetric analysis DOI : 10.1007/s11998-018-0006-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0006-7.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30748 [article]

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Effect of siloxane chain length on thermal, mechanical, and chemical characteristics of UV (ultraviolet)-curable epoxy acrylate coatings in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 2 (03/2022) . - p. 439-451 Titre : Effect of siloxane chain length on thermal, mechanical, and chemical characteristics of UV (ultraviolet)-curable epoxy acrylate coatings Type de document : texte imprimé Année de publication : 2022 Article en page(s) : p. 439-451 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Copolymère époxy acrylate Formulation (Génie chimique) Résistance chimique Revêtements -- Propriétés mécaniques Revêtements -- Séchage sous rayonnement ultraviolet Revêtements organiques Siloxanes Les siloxanes sont une classe de composés du silicium dont la formule empirique est R2SiO, où R est un groupe radical qui peut être organique. Des exemples représentatifs sont [SiO(CH3)2]n (diméthylsiloxane) et [SiO(C6H5)2]n (diphénylsiloxane), où n est typiquement supérieur à 4. Ces composés peuvent être des hybrides organiques et inorganiques. Les chaînes organiques confèrent au composé des propriétés hydrophobes alors que la chaîne principale -Si-O-Si-O- est purement inorganique. Le mot siloxane est dérivé de Silicium, Oxygène et alkane. Des siloxanes peuvent être trouvés dans des produits tels que des cosmétiques, des déodorants, des enduits hydrophobes pour pare-brise, des peintures et certains savons. Les siloxanes polymérisés (polysiloxanes) sont appelés silicones1,2. Le siloxane est massivement utilisé dans l'industrie cosmétique (rouges à lèvre, conditionneurs et shampooings, déodorants, etc.). Une application récente du Siloxane D5 (2001) a été trouvée dans le nettoyage à sec des textiles en remplacement du perchloroéthylène. Ce procédé est très répandu aux États-Unis et au Royaume-Uni. Il devient de plus en plus courant en Europe continentale dont la France, afin de promouvoir l'usage de procédés écologiques et respectueux de la santé humaine. Index. décimale : 667.9 Revêtements et enduits Résumé : In this research, high-performance epoxy acrylate (EA) coating formulations that contain various acrylate-modified diepoxy siloxane (DESA) intermediates were synthesized and characterized. Firstly, diepoxy siloxane (DES) intermediates, which have varying chain lengths (Mw = 370–3300 Da), were modified by acrylic acid via the ring-opening reaction oxirane group. DESA intermediates were then used in the preparation of ultraviolet (UV)-curable EA formulations. EA was also synthesized via acrylic acid modification of a commercial bisphenol-A-based epoxy resin, used as the standard formulation. EA-based UV-curable formulas were applied on substrates and then cured by UV irradiation for investigating the coating performances. Subsequently, performances of the UV-cured coatings were evaluated by the various test techniques, such as hardness, gloss, cross-cut adhesion force scratch resistance, contact angle, yellowing resistance, abrasion resistance, chemical resistance, and color measurement. The effect of DESA variety on the formations was examined compared to both themselves and the standard formulation. The results showed that the varying amounts and chain lengths of DESA influenced UV-curable coatings’ properties; particularly, the scratch resistance, contact angle, and yellowing resistance significantly enhanced with the increasing chain length of DESA. High-performance UV-curable EA formulations could be produced with the scratch resistance of 4 N, the contact angle of 95°, and high yellowing resistance (ΔE = 0.35). Note de contenu : - EXPERIMENTAL : Materials - Characterization and instruments - Preparation of epoxy acrylate (EA) and diepoxy siloxane acrylate intermediates (DESA) - Preparation of coating formulations and films - Film properties - RESULTS AND DISCUSSION : Synthesis and characterization - Physical and mechanical properties - Thermal performance analysis - Table 1 Formulations of different compositions of UV-curable coatings - Table 2 Formulations of DESA-based UV-curable coatings - Table 3 Specific properties of diepoxy polysiloxane-based intermediates - Table 4 Color of intermediate products - Table 5 Physical and mechanical properties of UV-cured epoxy acrylate films - Table 6 Physical and mechanical properties of DESA films - Table 7 The contact angle values of UV-cured films - Table 8 Chemical resistance of UV-cured films DOI : https://doi.org/10.1007/s11998-021-00548-z En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00548-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37276 [article]

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Greening radiation curing / Hugues van den Bergen in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2015)  

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Highly improved UV-shielding and mechanical properties of UV-curable epoxy acrylate nanocomposites by incorporating functionalized aramid nanofibers / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)  

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Innovation dans les fluorosilicones SILTECH et améliorations des propriétés de "coatings" grâce à ces additifs / Robert Ruckle in DOUBLE LIAISON, N° 598 (05/2014)

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Light stabilisers for clear coating / Yao-Hsing Huang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4544 (01/2010)

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Preparation and properties of UV-cured epoxy acrylate/glycidyl-POSS coatings / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)  

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Study of UV-curable coatings for optical fibers / Gexing Shen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 891 (04/1999)

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Study on the acrylate coating with chemically bonded functional group for antiseawater bioadhesion in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 6 (11/2022)  

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Synthesis and characterization of UV-curing epoxy acrylate coatings modified with organically modified rectorite / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)  

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Tg region breadth is critical to UV-Curable PSA performance / Craig Glotfelter in ADHESIVES AGE, Vol. 40, N° 13 (12/1997)  

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Tuning the mechanical properties of epoxy-acrylate core-shell nanostructured film via epoxy concentration in the core layer / Eyann Lee in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 4 (07/2024)  

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UV-curable behavior of phosphorus- and nitrogen-based reactive diluent for epoxy acrylate oligomer used for flame-retardant wood coating / Sachin U. Chambhare in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)  

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UV-curable waterborne epoxy acrylate coating modified by monomethacryloyloxy-terminated fluorinated oligomer / Hongyi Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)  

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Versatile epoxy acrylate / Graham Clark in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4543 (12/2009)  

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Wear, thermal, corrosion, and physical properties of novel UV-cured nanocomposite hybrid coatings with fluorine-containing silica networks / Mustafa Cakir in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 4 (07/2024)  

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