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UV cured pigmented epoxy acrylate coatings / Firdous Habib in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4542 (11/2009)
[article]
Titre : UV cured pigmented epoxy acrylate coatings Type de document : texte imprimé Auteurs : Firdous Habib, Auteur ; Madhu Bajpai, Auteur Année de publication : 2009 Article en page(s) : p. 18-21 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acrylates Les monomères acrylates sont un groupe d'esters faisant partie des vinyles, car renfermant une double liaison carbone-carbone et sont utilisés pour former des polyacryliques qui ont de multiples usages.
Epoxydes
Pigments
Revêtements -- Séchage sous rayonnement ultravioletIndex. décimale : 667.9 Revêtements et enduits Résumé : Radiation curing technology has encountered increased applications in recent years. UV curable systems have found wide application in clear coatings. However, despite the advantages of ultraviolet curable coatings, drawbacks still persist in some areas. One of these well known problems relates to through curing of pigments coatings. The common explanation for these particular problems is that pigments, by absorbing ultraviolet radiation, compete with the photoinitiators and thus diminish their effectiveness. This results in poor through curing and consequently in poor adhesion. Thus pigments used inthe UV curable coating systems should not absorb radiation in the same region as the photoinitiators. One of the solutions to such a problem is reported in this paper by developing a UV curing system based on pigmented acrylate formulation. A coating formulation is the mixture of novolac acrylate resin, monomer, titanium dioxide pigment and photoinitiator 2,2 dimethyl-2-hydroxy acetophenone (darocure 1173). Concentration of titanium dioxide in the formulation was varied to evaluate their effect on physical and chemical properties. En ligne : https://drive.google.com/file/d/1T1fbtvEhhH-r4eVjI-9uC3Bds37ymUJ5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7458
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 199, N° 4542 (11/2009) . - p. 18-21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011747 - Périodique Bibliothèque principale Documentaires Disponible 011773 - Périodique Bibliothèque principale Documentaires Disponible UV curing of acrylate resins versus cationic epoxies / Wells Cunningham in ADHESIVES AGE, Vol. 39, N° 4 (04/1996)
[article]
Titre : UV curing of acrylate resins versus cationic epoxies Type de document : texte imprimé Auteurs : Wells Cunningham, Auteur Année de publication : 1996 Article en page(s) : p. 24-28 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs -- Séchage sous rayonnement ultraviolet
Epoxydes
Polyacrylates
Polymères cationiques
Réticulation (polymérisation)Index. décimale : 668.3 Adhésifs et produits semblables Résumé : There is significant overlap between the application of these two chemistries. Acrylates generally have superior adhesion, cure speed and impact resistance. Epoxies quickly establish tack free surfaces, have reasonable adhesion to a variety of substrates and would maintain their properties to high temperatures. The end-user is encouraged to think in terms of the process issues for the the production line. Reliance on a partnership with the chemical and curing equipment vendor(s) will select the best chemistry for the situation, rather than forcing a particular chemistry into an application. UV cationic curing epoxies require time and/or heat to cure and develop their properties after UV exposure. However, this potential advantage does not translate into faster cure speed to establish fixture of parts or hardening of a coating. Also, there is no indication that this conveys depth of cure that is comparable to acrylates. Epoxies are versatile products, adhering well to many substrates. Epoxies show better resistance to water than acrylates as measured on a percentage basis. However, because of the higher initial adhesion (tensile) values of acrylates, the final advantage does not fall to either class. Epoxies have the potential to be severely inhibited by exposure to moisture before cure. This may demand an increased level of workplace and processing controls for epoxies versus acrylates. Epoxies are much more difficult to cure to clear, colorless products. This translates to a smaller process window with respect to exposure dose and time than acrylates. The above test matrices are extremely valuable screening devices for CS&A choices. Obviously other possible factors are often involved, such as flexibility, impact, dispense practicality, etc. En ligne : https://drive.google.com/file/d/1BnmnbOBO3HM7DpQ46qkCTpXGK2F30k0f/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20489
in ADHESIVES AGE > Vol. 39, N° 4 (04/1996) . - p. 24-28[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001062 - Périodique Bibliothèque principale Documentaires Exclu du prêt
[article]
Titre : Vacuum processing Type de document : texte imprimé Auteurs : Karl Flowers, Auteur Année de publication : 2021 Article en page(s) : p. 32-34 Langues : Anglais (eng) Catégories : Basse pression
Capillarité
Cuir
Cuirs et peaux
Epoxydes
Evaporation
Matériaux -- Imprégnation
Traitement sous videIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Low pressures, colloquially called vacuums, in the leather industry have oeen used for many years, typically in crying. LM Consultant Technical Editor Karl Flowers looks at the science behind it. Note de contenu : - Evaporation
- Boiling
- Capillary action
- Boiling and capillary flow
- Fig. 1 : The principle of vaporisation at a surface, commonly known as evaporation
- Fig. 2 : The principle of vaporisation by boiling
- Fig. 3 : Capillary flow and the influence of internal and external pressure
- Fig. 4 : Venturi effects seen in leatherEn ligne : https://drive.google.com/file/d/1ObZiJ4mrYIK6NiRLdOH8kCsIeZqeya_c/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35563
in INTERNATIONAL LEATHER MAKER (ILM) > N° 46 (03-04/2021) . - p. 32-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22623 - Périodique Bibliothèque principale Documentaires Disponible VAP infusion-moulded carbon fibre spar caps / Uwe Tiltmann in JEC COMPOSITES MAGAZINE, N° 132 (01-02/2020)
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Titre : VAP infusion-moulded carbon fibre spar caps Type de document : texte imprimé Auteurs : Uwe Tiltmann, Auteur ; Helge Haberkern, Auteur Année de publication : 2020 Article en page(s) : p. 39-41 Langues : Anglais (eng) Catégories : Composites à fibres de carbone -- Moulage par infusion
Eoliennes -- Matériaux
Epoxydes
Longeron
Matériaux -- Imprégnation
Pales d'éoliennes
Pultrusion
StratifiésIndex. décimale : 668.4 Plastiques, vinyles Résumé : To meet the increasing demand for longer wind rotor blades (up to 107 metres), Saertex uses many new material and process developments in the area of the spar cap in addition to well-established unidirectional E-glass fabrics. Note de contenu : - Carbon fibre spar caps
- Prepregs
- Pultrusion
- Infusion
- What's next ?
- Fig. 1 : Parts of a wind turbine rotor blade, carbon fibre spar cap made with Saertex
- Fig. 2 : Air inclusions in a prepreg laminate
- Fig. 3 : Void analysis on a thick carbon fibre laminate infused in VAP technology (IMA)
- Fig. 4 : An 87 m long VAP-infused spar cap and side view of the thickest section (120 layers)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33901
in JEC COMPOSITES MAGAZINE > N° 132 (01-02/2020) . - p. 39-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21395 - Périodique Bibliothèque principale Documentaires Disponible Vibration damping properties of graphene nanoplatelets filled glass/carbon fiber hybrid composites / Ahmet Erklig in INTERNATIONAL POLYMER PROCESSING, Vol. 38, N° 2 (2023)
[article]
Titre : Vibration damping properties of graphene nanoplatelets filled glass/carbon fiber hybrid composites Type de document : texte imprimé Auteurs : Ahmet Erklig, Auteur ; ashar Younus, Auteur ; Nurettin Furkan Dogan, Auteur ; Mohamad Alsaadi, Auteur ; Mehmet Bulut, Auteur ; Bahjat Hardan Sulaiman, Auteur Année de publication : 2023 Article en page(s) : p. 145-153 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amortissement (mécanique)
Composites à fibres de carbone
Composites à fibres de verre
Epoxydes
GraphèneLe graphène est un cristal bidimensionnel (monoplan) de carbone dont l'empilement constitue le graphite. Il a été isolé en 2004 par Andre Geim, du département de physique de l'université de Manchester, qui a reçu pour cette découverte le prix Nobel de physique en 2010 avec Konstantin Novoselov. Il peut être produit de deux manières : par extraction mécanique du graphite (graphène exfolié) dont la technique a été mise au point en 2004, ou par chauffage d'un cristal de carbure de silicium, qui permet la libération des atomes de silicium (graphène epitaxié). Record en conduction thermique jusqu'à 5300 W.m-1.K-1. C'est aussi un matériaux conducteur.
Matériaux hybrides
Nanoparticules
Stratifiés -- Propriétés mécaniques
Vibrations (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : The present study investigates the effect of carbon fiber hybridization and graphene nanoplatelets inclusion on the vibration damping properties of glass fiber reinforced polymer composites. The hand layup method was utilized with hot press molding in hybrid/non-hybrid composite plate production. A total of sixteen laminates, eight containing pure glass/epoxy and pure carbon/epoxy, and the remainder containing glass/carbon, were stacked in four different arrays and impregnated with an epoxy matrix to provide a hybrid/non-hybrid configuration. In the first hybrid configuration, the glass fiber fabric is on the outer surface and the carbon fiber fabric is on the inside of the composite plate; in the second configuration, the opposite of this sequence was used. Graphene Nanoplatelets (GNPs) were added into the epoxy resin in different weight fractions (0, 0.1, 0.25, and 0.5 wt%). Experimental modal analysis was performed to evaluate the natural frequency and damping ratios of the GNPs modified/unmodified test samples. According to the results obtained, carbon fiber hybridization not only increased the natural frequency but also caused a decrease in the damping ratio of the glass fiber reinforced composite material. On the other hand, incorporating 0.5% by weight of GNPs into the epoxy matrix improved damping ratios by approximately 42.1, 51.6, 16.7 and 17.2% for the G05, GC05, CG05 and C05 samples, respectively, compared to the pure samples. Also, a decrease in natural frequency and loss storage values were observed at high GNPs content. Note de contenu : - Materials and method
- Free vibration experiments
- Table 1 : Nomenclature of the composite samples
DOI : https://doi.org/10.1515/ipp-2022-4241 En ligne : https://drive.google.com/file/d/1aOI_i5qgnzgNcqXQRAczeZMM2WOclVPG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39497
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Code-barres Cote Support Localisation Section Disponibilité 24121 - Périodique Bibliothèque principale Documentaires Disponible Vieillissement thermique d'un jonc composite carbone/époxy / Maéva Serror in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 23, N° 1 (01-02-03-04/2013)
PermalinkLe viellissement des PP colorés à l'étude / Paul Boudry in CAOUTCHOUCS & PLASTIQUES, N° 797 (09/2001)
PermalinkA virtual test lab for structural composite materials / Carlos Gonzà lez in JEC COMPOSITES MAGAZINE, N° 111 (03/2017)
PermalinkViscoelasticidad en semi-IPNs basadas en matrices epoxi Y PMMA / P. M. Remiro in LES CAHIERS DE RHEOLOGIE, Vol. XVI, N° 1 (10/1998)
PermalinkPermalinkPermalinkWater soluble epoxy resins for cathodic electrodeposition coatings : a review / B. S. Suryawanshi in PAINTINDIA, Vol. LXVIII, N° 11 (11/2018)
PermalinkWater soluble stoving coating compositions from maleopimaric acid modified epoxy resins / U. S. Mishra in PAINTINDIA, Vol. XLVII, N° 10 (10/1997)
PermalinkWater sorption and diffusional properties of a cured epoxy resin measured using alternating ionic liquids/aqueous electrolytes in electrochemical impedance spectroscopy / Brian R. Hinderliter in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 4 (12/2008)
PermalinkWaterbased epoxy technologies for metal coating applications / Daniel Suckley in PAINTINDIA, Vol. LXX, N° 12 (12/2020)
PermalinkA waterborne and environmentally benign, marine timber coating / Brian G. Dixon in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 837 (10/1994)
PermalinkWaterborne epoxies / Vladimir V. Verkholantsev in EUROPEAN COATINGS JOURNAL (ECJ), N° 5/96 (05/1996)
PermalinkPermalinkWaterborne epoxy resins modified by reactive polyacrylate modifier with fluorinated side chains / Hongyi Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
PermalinkWaterjetting & surface-tolerant coatings / Joao Azevedo in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 10 (10/2018)
PermalinkWear performance of value-addition epoxy/breadfruit seed shell ash particles and functionalized momordica angustisepala fiber hybrid composites / Vincent C. Ezechukwu in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 5-6 (12/2020)
PermalinkA wetting and dispersing additives concept / Carsten Nagel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4548 (05/2010)
PermalinkWhat are structural adhesives ? / Simla Ay in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 26, N° 10 (10/2019)
PermalinkWhen a good idea goes bad / Rick A. Huntley in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 30, N° 3 (03/2013)
PermalinkWhy electric motors should be assembled by bonding in ADHESION - ADHESIVES + SEALANTS, Vol. 16, N° 1/2019 (2019)
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