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The application of x-ray powder diffraction for the analysis of synthetic organic pigments. Part 1: dry pigments / Suzanne Quillen Lomax in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 3 (05/2010)
[article]
Titre : The application of x-ray powder diffraction for the analysis of synthetic organic pigments. Part 1: dry pigments Type de document : texte imprimé Auteurs : Suzanne Quillen Lomax, Auteur Année de publication : 2010 Article en page(s) : p. 331-346 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diffractométrie de rayons X
Phtalocyanine de cuivre
Pigments organiques
Polymorphisme (cristallographie)
QuinacridoneLes pigments de quinacridone sont des pigments organiques de synthèses qui vont du rouge-orange au rouge-violet.
Ils sont utilisés depuis les années 1960 par les teinturiers et les fabricants de pigment set couleurs à peindre (et plus récemment par certains tatoueurs, comme pigment dans des encres de tatouage, avec un risque allergique).
Il s'agit de pigments très transparents, au fort pouvoir colorant mais modérément couvrants.
Leur transparence permet de varier les teintes selon la densité et l'épaisseur de l'application.Index. décimale : 667.9 Revêtements et enduits Résumé : This paper presents x-ray powder diffraction data for over 200 synthetic organic pigments. These pigments, most manufactured in the last 130 years, are frequently found in modern works of art. Their identification is of interest in the field of art conservation for the purposes of dating works of art as well as making conservators and curators aware of issues with lightfastness and solubility. Most classes of these pigments, including β-naphthol, Naphthol AS, mono- and di-arylide yellows, quinacridones, copper phthalocyanines, benzimidazolones, and perylenes give good diffraction data. Some pigments, including certain triarylcarbonium and some other metal containing pigments, especially aluminum containing pigments, were found not to diffract. X-ray powder diffraction is of great use in distinguishing polymorphs of pigments such as quinacridones and copper phthalocyanines. DOI : 10.1007/s11998-009-9206-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9206-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9821
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Code-barres Cote Support Localisation Section Disponibilité 012381 - Périodique Bibliothèque principale Documentaires Disponible The application of x-ray powder diffraction for the analysis of synthetic organic pigments. Part 2 : artists' paints / Suzanne Quillen Lomax in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 3 (05/2010)
[article]
Titre : The application of x-ray powder diffraction for the analysis of synthetic organic pigments. Part 2 : artists' paints Type de document : texte imprimé Auteurs : Suzanne Quillen Lomax, Auteur Année de publication : 2010 Article en page(s) : p. 325-330 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diffractométrie de rayons X
Liants
Pigments organiques
RevêtementsIndex. décimale : 667.9 Revêtements et enduits Résumé : Over 50 commercial paints were examined by x-ray powder diffraction in order to try and identify the synthetic organic pigments present. The binders included acrylic, oil, gum, and alkyd. Some pigments could be identified, though analysis is often complicated by the presence of large amounts of fillers and extenders in the paints relative to the small quantities of the pigment. A few of the paints did not have reflections due to fillers or extenders but the pigments could still not be identified. The best success in identifying the pigments was with acrylic binders, where the pigments could be identified in more than half of the samples examined, and with alkyds, where the pigment could frequently be identified. However, other binders, especially oil and gum, contain so many fillers that the pigment reflections are obscured. X-ray powder diffraction, therefore, is of limited utility in the identification of synthetic organic pigments in paints. DOI : 10.1007/s11998-009-9205-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9205-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9812
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Code-barres Cote Support Localisation Section Disponibilité 012381 - Périodique Bibliothèque principale Documentaires Disponible The effect of carbon nanotubes loaded with 2-mercaptobenzothiazole in epoxy-based coatings / Kunal V. Yeole in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
[article]
Titre : The effect of carbon nanotubes loaded with 2-mercaptobenzothiazole in epoxy-based coatings Type de document : texte imprimé Auteurs : Kunal V. Yeole, Auteur ; L. P. Agarwal, Auteur ; Shashank T. Mhaske, Auteur Année de publication : 2016 Article en page(s) : p. 31-40 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Caractérisation
Couches minces multicouches
Diffractométrie de rayons X
Epoxydes
Essais (technologie)
Essais de brouillard salin
Fourier, Spectroscopie infrarouge à transformée de
Humidité -- Absorption:Eau -- Absorption
Mercaptobenzothiazole
Métaux -- Revêtements protecteurs
Morphologie (matériaux)
Nanotubes
Polarisation (lumière)
Polypyrroles
Potentiel zeta
Revêtements -- Analyse:Peinture -- Analyse
Taille des particules
ThermogravimétrieIndex. décimale : 667.9 Revêtements et enduits Résumé : Currently, anticorrosive coatings find a large number of applications and can be effectively used for corrosion protection of many corrosion-prone metals like aluminum, iron, etc. Nanocontainers have the ability to encapsulate large amounts of guest molecules within their core, and releasing them in a controlled way can aid in providing self-healing abilities to the coating, thus providing active protection. In the present study, a novel approach of synthesis of nanocontainers using carbon nanotubes (CNTs) and corrosion inhibitor 2-mercaptobenzothiazole has been discussed with their applications in corrosion protection of mild steel (MS). It is a three-step procedure involving layer-by-layer deposition of the CNT, inhibitor, and polyelectrolytes, which thus provides enhanced corrosion protection when coated on MS plates. The thickness of the layer, surface charge, and functional groups present on each layer were identified using various analytic techniques such as particle size distribution, zeta potential, and FTIR analysis. X-ray diffractograms analyses of CNT and modified CNT were performed to evaluate their crystallographic properties. The morphological and particle size clearly indicate the development of a nanocontainer. The corrosion rate analysis of nanocontainer-epoxy coatings on MS panel has been performed by means of salt spray and DC polarization measurements. The corrosion resistance was measured after the immersion of the coated samples in alkali solution. Note de contenu : - EXPERIMENTAL : Materials and reagent - Coating of polypyrrole layer on CNT - Loading of 2-mercaptobenzothiazole (MBT) - Coating of polyacrylic acid layer - Application in epoxy-based coatings
- CHARACTERIZATION
- RESULTS AND DISCUSSION : FTIR - XRD analysis - Morphological study - Thermogravimetric analysis - Particle size and zeta potential analysis - Release study of corrosion inhibitor at different pH values - Water absorption test - Salt spray test - DC polarization measurementDOI : 10.1007/s11998-015-9730-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9730-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25369
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 1 (01/2016) . - p. 31-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17819 - Périodique Bibliothèque principale Documentaires Disponible The effect of caustic soda solutions on fusion-bonded epoxy coatings at high temperatures / Hassan Al-Sagour in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 9 (09-10/2018)
[article]
Titre : The effect of caustic soda solutions on fusion-bonded epoxy coatings at high temperatures Type de document : texte imprimé Auteurs : Hassan Al-Sagour, Auteur ; Mana Al-Mansour, Auteur Année de publication : 2018 Article en page(s) : p. 36-43 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Analyse spectrale
Analyse thermique
Calorimétrie
Décoloration
Diffractométrie de rayons X
Epaisseur -- Mesure
Essais (technologie)
Hydroxyde de sodiumL'hydroxyde de sodium, appelé également soude caustique7, est un corps chimique composé minéral de formule chimique NaOH, qui est à température ambiante un solide ionique. Fusible vers 318 °C, il se présente généralement sous forme de pastilles, de paillettes ou de billes blanches ou d'aspect translucide, corrosives et très hygroscopiques. Il est très soluble dans l'eau et légèrement soluble dans l'éthanol.
La solution d'hydroxyde de sodium, souvent appelée soude, est une solution aqueuse transparente. Concentrée, elle est corrosive et souvent appelée lessive de soude.
Les propriétés chimiques de l'hydroxyde de sodium sont surtout liées à l'ion hydroxyde HO- qui est une base forte. En outre, l'hydroxyde de sodium réagit avec le dioxyde de carbone (CO2) de l'air et se carbonate.
La solubilité de la soude caustique dans l'eau augmente avec la température, à pression constante ou ambiante.
Résistance chimique
Revêtement époxy lié par fusion
Revêtements -- AnalyseIndex. décimale : 667.9 Revêtements et enduits Résumé : In the article, "Qualification test for high-temperature FBE coatings" in the July 2018 issue of JPCL, the results of qualification testing of high-temperature fusion-bonded epoxy (FBE) coatings were reported by the authors. This testing involved immersion in different solutions at a high temperature to examine the chemical resistance of various FBE coatings. Three candidate products were immersed at a high temperature and all showed satisfactory performance in distilled water, synthetic sea water and a 5-precent NaCl solution. Most products, however experienced serve discoloration when immersed in a 5-precent NaOH (causic soda) solution.
In this article the authors describe further testing conducted on one of the candidate products to determine the significance of this discoloration. While it is common in the coating industry to condiser discolorationa failure, discoloration has sometimes been claimed a result of the reaction between coloring pigments and test solutions indicating no impact on a coating's properties. Hence, this work has been carried out to more closely examine the source of color change and address the changes in coating properties in more detail.Note de contenu : - The background
- Microscopic examination
- Dry-film thickness
- Pull-off adhesion
- Electrochemical impedance spectroscopy
- X-ray diffraction
- Energy dispersive X-ray spectroscopy
- Differential scanning calorimetry
- Attenuated total reflectance fourier spectroscopy
- Fig. 1 : Cross-section examinqtion qt 80-times magnification. Figures counrtnesy of the author.
- Fig. 2 : Color, DFH and adhesion on Sample 1.
- Fig. 3 : Color, DFH and adhesion on Sample 2.
- Fig. 4 : Color, DFH and adhesion on Sample 3.
- Fig. 5 : DSC scans from panels after immersion in different solutions.
- Fig. 6 : DSC scan of the coating after dry heat.
- Table 1 : DFT, Adhesion and EIS before and after immersion in NaOH solution.
- Table 2 : Composition of the top layer.
- Table 3 : Composition of the intermediate layer.
- Table 4 : Elemental composition comparison (EDX vs. XRD)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31897
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Code-barres Cote Support Localisation Section Disponibilité 20250 - Périodique Bibliothèque principale Documentaires Disponible The effects of pulse plating variables on morphology and corrosion behavior of Zn–Fe alloy coatings / A. Roshanghias in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 2 (03/2012)
[article]
Titre : The effects of pulse plating variables on morphology and corrosion behavior of Zn–Fe alloy coatings Type de document : texte imprimé Auteurs : A. Roshanghias, Auteur ; M. Heydarzadeh Sohi, Auteur Année de publication : 2012 Article en page(s) : p. 215-218 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alliages
Analyse spectrale
Bains de placage
Dépôt électrolytique
Diffractométrie de rayons X
Fer
Microscopie électronique à balayage
Morphologie (matériaux)
Zinc -- AlliagesIndex. décimale : 667.9 Revêtements et enduits Résumé : Considerable researches have been focused on zinc–iron (Zn–Fe) alloy coatings due to their superior characteristics among zinc alloy electrodeposits in recent years. The corrosion behavior of these coatings depends on the phase structure and morphology of the Zn–Fe deposits. In this work the effects of pulse plating variables such as current density, off-time, frequency and pulse modes on the morphology and phase structure of Zn–Fe deposits was studied by scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive spectrometry (EDS) analysis. The corrosion behavior of these coatings was measured by means of polarization curves and Neutral salt spray tests. It was shown that pulse reverse coatings exhibit excellent resistance to corrosion in comparison with normal pulse and direct current conditions. DOI : 10.1007/s11998-010-9249-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-010-9249-2.pdf?pdf=button Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14374
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Code-barres Cote Support Localisation Section Disponibilité 14096 - Périodique Bibliothèque principale Documentaires Disponible The evaluation of miscibility of poly(vinyl chloride) and poly(ethylene oxide) blends by DSC, refractive index and XRD analyses / S. Ramesh in INTERNATIONAL POLYMER PROCESSING, Vol. XXIV, N° 4 (09/2009)
PermalinkThe location of the thioglycolic acid molecules in intrafibrillar unordered areas of the human hair keratin structure / Y. F. Zabashta in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 34, N° 3 (06/2012)
PermalinkThe microstructure changes of collagen fibres introduced by a novel metal complex : Zr-Al-Ti / Chen Yining in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 1 (01-02/2018)
PermalinkThe physical chemistry of the stratum corneum lipids / Mila Boncheva in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 36, N° 6 (12/2014)
PermalinkThe rational design of biomimetic skin barrier lipid formulations using biophysical methods / P. A. Bulsara in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 39, N° 2 (04/2017)
PermalinkThe reinforcing effect of crosslinkable waterborne polyurethane/polysiloxane composite emulsion by aqueous sol–gel method / Yan Wu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
PermalinkThe synthesis, characterisation and molecular structure of a new hetarylazoindole dye studied by X-ray diffraction, spectral analysis and density functional theory calculation / Ebru Aktan in COLORATION TECHNOLOGY, Vol. 128, N° 5 (2012)
PermalinkX-ray crystal structure analysis for CI Disperse Orange 61 / Sun Jie in COLORATION TECHNOLOGY, Vol. 128, N° 2 (2012)
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