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Reliable and environmentally friendly processes for coating MDF in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 7, N° 3 (2014)
[article]
Titre : Reliable and environmentally friendly processes for coating MDF Type de document : texte imprimé Année de publication : 2014 Article en page(s) : p. 30-31 Langues : Anglais (eng) Catégories : Adhésion
Ameublement
Basses températures
Bois
Chimie -- Essais et réactifs
Panneaux de fibres
Revêtements poudre:Peinture poudreIndex. décimale : 667.9 Revêtements et enduits Résumé : Ultra-low temperature powder for wood-based materials - A product that gives consistent results, contains no solvents and uses little energy is ideal for high-quality coatings for furniture. A new high reactive ultra-low temperature powder coating allows heat-sensitive wood substrates to be created reliably and with a reduced environmental impact. Note de contenu : - No solvents and low emissions
- Excellent adhesionPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22392
in INTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 7, N° 3 (2014) . - p. 30-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16680 - Périodique Bibliothèque principale Documentaires Disponible A reliable method to determine sulfide in tannery effluent / Xie Yonghong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 1 (01-02/2007)
[article]
Titre : A reliable method to determine sulfide in tannery effluent Type de document : texte imprimé Auteurs : Xie Yonghong, Auteur ; Zhang Xinshen, Auteur ; Wang Wenxian, Auteur ; Li Hua, Auteur ; Yuan Dong, Auteur ; Huang Jin, Auteur Année de publication : 2007 Article en page(s) : p. 21-24 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse par injection en flux continu L’analyse par injection en flux continu (Flow Injection Analysis FIA) consiste, dans son principe le plus simple, en l’injection d’un petit volume (µL) d’une solution échantillon dans un fluide en mouvement ; ce liquide transporteur, qui se déplace de façon continue, n’est pas segmenté, et la zone formée par l’injection répétée de l’échantillon est ainsi transportée vers un détecteur afin d’enregistrer les variations d’un paramètre physique ou physico-chimique caractéristique de l’échantillon ou, le plus souvent, de l’un de ses éléments constitutifs.
Chimie -- Essais et réactifs
Eaux usées -- Analyse
Eaux usées -- Teneur en sulfures
Solutions (chimie)
SpectrophotométrieIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : A rapid, reliable and sensitive online method was proposed to determine sulfide ion in tannery effluent based on the combination of methylene blue spectrophotometry and automatic reference Flow Injection Analysis. In acidic media with Fe3+, without any process of H2S absorption or sample pre-distillation, sulfide could be determined directly by the automatic reference FIA function of an automatic metallic elements analyzer using p-aminodimethylaniline dimethylaniline (C6H4•NH2•N (CH3)2•2HCl) as colour developing reagent. Under the optimal conditions, the linear ranges of this method were 0.01 - 0.25 and 0.20 - 2.16µg/ml; the detection limit was 4.642ng/ml, and relative standard deviations were 2.5% (n = 8) for a 3 x diluted tannery effluent. Asatisfied result was achieved with the proposed method to determine the sulfide in tannery effluent, and then the range of recovery percentages was 96.0 - 104.0%. Note de contenu : - EXPERIMENTAL PROCEDURE : Chemical reagents - Apparatus - Preparation of solutions
- ANALYTICAL PROCEDURE : Preparation of the samples
- RESULTS AND DISCUSSION : Choice of the detection wavelength - Choice of pump tubes - Choice of the reaction coil - Choice of the flow path - Choice of sampling volume - Optimizing of Reagent solution - Test of linearity, precision and detection limit - Effects of foreign ions - Analysis of the samples
- Table 1 : Linearity and detection limit of the methodEn ligne : https://drive.google.com/file/d/1eGz7yIy-5m839V4Is2EOmzfbnLrledKb/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39043
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 1 (01-02/2007) . - p. 21-24[article]Représentations thermodynamiques des systèmes solides réactifs / Alexandre Maitre in L'ACTUALITE CHIMIQUE, N° 5 (05/1999)
[article]
Titre : Représentations thermodynamiques des systèmes solides réactifs : Application à la réduction carburante de divers oxydes Type de document : texte imprimé Auteurs : Alexandre Maitre, Auteur ; Guy Lefort, Auteur Année de publication : 1999 Article en page(s) : p. 35-41 Note générale : Bibliogr. Langues : Français (fre) Catégories : Chimie -- Essais et réactifs
Chimie -- Etude et enseignement
Oxydes métalliques
Réduction (chimie)
ThermochimieTags : Thermodynamique Réduction carbothermique Oxyde métallique Domaine existence Index. décimale : 541.36 Thermodynamique chimique Résumé : The classical representations used for describing thermodynamics of reactions carbon/metallic oxides following : MxOy+(x+y)C<=>xMC+yCO have bee studedk. On examples concerning systems TiO2/C,ZrO2/C, WO3/C and Al2O2/C, it is shown that the diagrams of Ellingham, pressure vs temperature and composition vs temperature give static representations, more or less complete, for equilibriums at the end of the reaction. The only volatility diagrams open the way to a dynamic interpretation in terms of reaction mechanisms. For this, they are the most relevant in reactivity of solids, particularly for the carburizing of metallic oxides. En ligne : https://new.societechimiquedefrance.fr/numero/representations-thermodynamiques-d [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7567
in L'ACTUALITE CHIMIQUE > N° 5 (05/1999) . - p. 35-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002145 - Périodique Bibliothèque principale Documentaires Disponible 002146 - Périodique Bibliothèque principale Documentaires Disponible A review of effects of hyperbranched polymeric additive on properties of cured epoxy products / Vinayak Anant Bhanu in PAINTINDIA, Vol. LXXI, N° 7 (07/2021)
[article]
Titre : A review of effects of hyperbranched polymeric additive on properties of cured epoxy products Type de document : texte imprimé Auteurs : Vinayak Anant Bhanu, Auteur ; Sunil Narsingrao Garaje, Auteur ; Shashikant Sangameshwar Paymalle, Auteur ; Singubiru Machindra Khatake, Auteur ; Yogaraj Umesh Nabar, Auteur ; James Herbison, Auteur ; Christian Przybyla, Auteur Année de publication : 2021 Article en page(s) : p. 55-69 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chimie -- Essais et réactifs
Epoxydes
Nanoparticules
Polymères ramifiés
Ressources renouvelables
Réticulants
Revêtements -- Additifs
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : There has been continuous interest in developing epoxy-based products having superior properties. Hyperbranched polymer (HBP) is one of the valuable additives for making such materials. It is a unique additive in the sense it provides simultaneous improvement in many properties of wide range of epoxy products like composites, coatings, and adhesives. This paper reviews the recent literature on epoxy materials made using HBP additives. In addition, we have briefly discussed our recent work on the development of epoxy systems using two new am ino functional hyperbranched phenalkamine curing agents that use cardanol. As an additive, presence of reactive as well as nonreactive types of HBP in the epoxy have an impact that covers different aspects like improvement in various properties, morphology of cured products and influence on the kinetics of curing reaction. Nanofiller containing HBP in epoxy composites and coatings are found to provide excellent properties at lower nanofiller content than composites of micron sized conventional fillers in the absence of HBP. Such composites and some more ideas for future development are discussed in this review. Note de contenu : - SYNTHESIS AND CLASSIFICATION OF HBP
- EPOXY SYSTEMS CONTAINING NONREACTIVE HBP : - Polyester and polyether HBP with hydroxyl or thiol end groups - Ester end group containing polyester polyols - Miscellaneous nonreactive HBP derivatives - ENC containing nonreactive HBP
- EPOXY SYSTEMS CONTAINING REACTIVE HBP : Epoxy functional reactive HBP - Epoxy functionalized HBP in ENC
- HBP CURING AGENTS CONTAINING EPOXY SYSTEMS : Amine functional reactive HBP - Hydroxyl, thiol, and acid functional reactive HBP - HBP ionic liquid hardeners - HBP curing agents in combination with nanofillers for ENC
- COMMENTS ON ROLES OF HBP IN EPOXY CURING AND CORRESPONDING
- Table 1 : Characteristics of different HBP backbones used in epoxy composites
- Table 2 : Effect of nonreactive HBP on epoxy composite on tangent Ô, Impact strength and Tg
- Table 3 : Advantages of using HBP modified nanofiller containing composites
- Table 4 : Composite properties for various systems containing epoxy functional HBP
- Table 5 : Effect of amine and other curing agents modified HBP on Composite propertiesEn ligne : https://drive.google.com/file/d/1_yB2q7zt6xg1wXG-7LLePOogz2Q1t9io/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36307
in PAINTINDIA > Vol. LXXI, N° 7 (07/2021) . - p. 55-69[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22921 - Périodique Bibliothèque principale Documentaires Disponible Russian roulette : Coating performance with or without a sulfide removal treatment / Yasir Idlibi in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 33, N° 11 (11/2016)
[article]
Titre : Russian roulette : Coating performance with or without a sulfide removal treatment Type de document : texte imprimé Auteurs : Yasir Idlibi, Auteur ; Jason Hartt, Auteur ; Mike O'Donoghue, Auteur ; Vijay Datta, Auteur ; Bill Johnson, Auteur Année de publication : 2016 Article en page(s) : p. 38-50 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone
Chimie -- Essais et réactifs
Epoxydes
Métaux -- Revêtements protecteurs
Polyamine cyclique
Revêtements -- Analyse:Peinture -- Analyse
Sulfures
Surfaces -- NettoyageIndex. décimale : 667.9 Revêtements et enduits Résumé : Worldwide, many thin- and thick-film innovative polycyclamine-cured epoxy linings have performed admirably in oil patch, high-temperature service for tank, vessel and pipe spool internals. Notwithstanding, with ever-increasing temperatures and pressure and chemical resistance requirements in oil and gas environments, the demands placed upon linings are becoming more stringent.
This article investigates whether the performance of these linings could be enhanced by first abrasive blasting the steel substrate and then providing a subsequent application (and removal) of a unique chemical reagent to remove deleterious sulfide contaminants, improve lining performance in aggressive immersion service conditions and potentially extend the life-cycles of the applied linings.
Accelerated laboratory investigations were carried out on a set of reagent-treated, and untreated, carbon steel test panels. Sets of panels were lined with a three-coat, thin-film solvent-borne epoxy novolac coating or a single coat solvent-free, thick-film polycyclamine-cured epoxy.
Characterization of the lining performance, the lining-steel interface and efficacy of the sulfide removal reagent was achieved using autoclave (NACE-TM0185), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM/EDX) and X-Ray diffraction (XRD).Note de contenu : - CANDIDATE SURFACE DECONTAMINATION TECHNOLOGY CHEMICAL CLEANING
- CANDIDATE EPOXY LININGS
- EXPERIMENTATION : Preparation and treatment of steel panels - Lining application
- TEST METHODS FOR COATING EVALUATION : Autoclave - Electrochemical impedance spectroscopy (EIS) - Adhesion and visual rating - Surface profile measurements - Conductivity measurements - SEM-EDX - X-ray diffraction
- RESULTS AND DISCUSSION : Surface profile measurement and visual observations - Conductivity measurement - SEM-EDX
- FIGURES : 1. Preparation and treatment of 42 panels prior to coating application - 2. Examples of deliberately contaminated panels - 3. Examples of pre-test panels. (Left to right): Coating 2-Panel A, Coating 1-Panel B, Coating 2-Panel B and Coating 1-Panel C - 4. Coating 1 panels, post autoclave test. (Left to right): 2A, 1B, 2B and 1C - 5. Coating 2 panels, post autoclave test. (Left to right): 2A, 1B, 2B and 1C - 6. Impedance, pre- and post-autoclave exposure - 7. (Left) Panel A, Panel B (washed, brush blasted one side; contaminated on other side) and Panel C. (Center) Panel A, SSPC-SP 5/NACE No. 1 and (Right) Panel C, SSPC-SP 5/NACE No. 1 and chemically cleaned - 8. (Top row, Left) Test panels as received, (Center) unpacking of Test Panel B washed, uniform rusting throughout; Test Panel B unwashed similar and (Right) Test Panel B, boiling extraction method, all others similar. (Bottom row, Left): Test Panel A, surface profile measurements (ASTM D4417) prior to boil extraction, (Center) Test Panel C, surface profile measurements (ASTM D4417) prior to boil extraction and (Right) Liquid reagent sample cooling and test panels repackaged after boil extraction - 9. SEM image of Panel A (2,000 times as taken) showing surface and bulk energy-dispersive X-ray analysis (EDXA) elemental analysis showing iron, oxygen and other elements - 10. SEM image of Panel B clean surface (2,000 times as taken) showing surface and bulk EDXA elemental analysis showing iron oxide and other elements - 11. SEM image of Panel B dark surface (2,000 times as taken) showing surface and bulk EDXA elemental analysis showing iron sulfide and iron carbonate (as per XRD analysis) - 12. SEM image of Panel C (2,000 times as taken) showing etched surface from exposure to corrosive environment subsequently treated with cleaner. Surface is clean as shown by the predominantly iron peak shown in the EDX analysis - 13. (Left) At 8,000 times magnification, the surface of Panel A as blasted and (Right) Panel C after chemical treatment. Panel C shows etching effect from exposure to corrosive environment. By removing all the contaminants the chemical cleaner system has revealed the surface topography
- TABLES : 1-2. Coating 1 and 2 autoclave analysis - 3. Conductivity and surface profile measurements of test panels pre-coating application - 4. Summary of XRD resuls (wt%)En ligne : http://www.paintsquare.com/archive/?fuseaction=view&articleid=5946 Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28385
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 33, N° 11 (11/2016) . - p. 38-50[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18510 - Périodique Bibliothèque principale Documentaires Disponible Studies of the application of biocolorant for leather dyeing using Monascus Purpureus / A. Tamil Selvi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 4 (04/2018)
PermalinkStudy on photostabilization in situ of reactive hindered amine light stabilizers applied to UV-curable coatings / Yongtao Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 4 (07/2012)
PermalinkSUSBIND : Carbohydrate conversion to highly reactive intermediate chemicals for adhesives / Ana Babic in SURFACE COATINGS INTERNATIONAL, Vol. 104.3 (05-06/2021)
PermalinkSynthesis and application of the cationic lignin amine flocculant / Y. Jiao in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 6/2010 (11-12/2010)
PermalinkTextiles. Domestic washing and drying procedures for textile testing - Norme NF EN ISO 6330 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (2012)
PermalinkViscosity and retanning properties of isophthalic dihydrazide based amino resins under different reactant conditions / Rashid Saleem in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 97, N° 5 (09-10/2013)
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