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Prevention is better than cure / Alexander Böhler in EUROPEAN COATINGS JOURNAL (ECJ), N° 2 (02/2018)
[article]
Titre : Prevention is better than cure : Benefits of early detection of microbial contamination by a new method Type de document : texte imprimé Auteurs : Alexander Böhler, Auteur ; Abdul Hamood, Auteur Année de publication : 2018 Article en page(s) : p. 32-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Chimie analytique
Contamination microbienne
Peinture -- Conservation
Revêtements (produits chimiques):Peinture (produits chimiques)
Revêtements -- Analyse:Peinture -- AnalyseIndex. décimale : 667.9 Revêtements et enduits Résumé : A rapid, close to real time, analytical method can be used to detect impending microbial contamination of paint and raw materials at an early stage and initiate remedial action before the microbial community reaches critical concentrations. More appropriate timing allows biocide dosage for effective disinfection to be optimised. Note de contenu : - Cell status information aids microbial detection
- How the cell analysis technology functions
- An example of sequential analysis of cell growth
- Metabolic activity and the effectiveness of biocides
- Early indicator of biocide effectiveness
- Monitoring microbial trends for preventive management
- An example of evolving biocide resistance
- FIGURES : 1. The CellFacts II system - 2. Transition of microbial cell growth from lag phase (a) through commencement of log/exponential growth (b) to full growth rate (c) - 3. Analytical results from a bio-contaminated paint sample with a high number of active cells. Biocidal treatment reduces numbers but activity remains dangerously high - 4. CellFacts II trend analysis to monitor changes in activity levels and viable count on a ongoing basis
- TABLES : 1. Microbial growth phases : terminology and characteristics - 2. Evolving microbial growth pattern : numerical result associated with figure 2 - 3. Numerical results asociated with figure 2 : limited biocidal effectiveness in a contaminated paint sampleEn ligne : https://drive.google.com/file/d/1biDQkOvFYytps7Uw3e8xMmTL563YDalS/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30197
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 2 (02/2018) . - p. 32-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19608 - Périodique Bibliothèque principale Documentaires Disponible Rapid screening of flame retardant coatings / Kalpana Volety in EUROPEAN COATINGS JOURNAL (ECJ), N° 1 (01/2016)
[article]
Titre : Rapid screening of flame retardant coatings : How large numbers of flame retardant fabric finishes were evaluated Type de document : texte imprimé Auteurs : Kalpana Volety, Auteur ; Erwin Bauters, Auteur ; Johan Paul, Auteur ; Ine De Vilder, Auteur ; Myriam Vanneste, Auteur Année de publication : 2016 Article en page(s) : p. 40-44 Note générale : Bibliogr.
Langues : Anglais (eng) Catégories : Analyse des données
Etudes comparatives
Formulation (Génie chimique)
HalogènesVIIA. Ces éléments chimiques sont : le fluor 9F, le chlore 17Cl, le brome 35Br, l’iode 53I et l’astate 85At.
Ces éléments chimiques peuvent se trouver liés à la quasi-totalité des autres éléments chimiques du tableau périodique, y compris quelques gaz nobles pour ce qui concerne le fluor. A 0 °C sous la pression atmosphérique, les corps simples correspondant sont sous forme de molécules diatomiques : à l'état gazeux pour le difluor F2 et le dichlore Cl2, liquide pour le dibrome Br2 et solide pour le diiode I2 et l’astate. Aucun ne se trouve dans la nature sous cette forme. La forme la plus courante, dans la nature est la forme ionique (ions fluorure, chlorure, bromure ou iodure) et, en quantité moins abondante, dans des combinaisons moléculaires, par exemple avec le carbone. C'est le cas des hormones thyroïdiennes iodées par exemple.
Ignifugeants -- Suppression ou remplacement
Phosphore
Revêtements -- Additifs
Revêtements -- Analyse
Textiles et tissusIndex. décimale : 667.9 Revêtements et enduits Résumé : The use of certain halogenated flame retardants is strictly controlled by European legislation, eco label requirements ect. Under a research project known as FR4Tex several types of flame retardant are screened in textile coatings, combining Design of Experiments (DoE) with high-throughput formulation and application technologies. Some promising alternative flame retardants were identified. Note de contenu : - Formulating textile coatings involves many variables
- Ways to rapidly screen many raw materials
- Principles of the experimentalset-up
- Accelerated high-throughput formulation, application and testing of coating
- Data analysis methods and results summarisedEn ligne : https://drive.google.com/file/d/1QOqSecVYXzPWBMFuz68e4DoshTRt7h_l/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25218
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 1 (01/2016) . - p. 40-44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17730 - Périodique Bibliothèque principale Documentaires Disponible 17737 - Périodique Bibliothèque principale Documentaires Disponible Resolution of blistering phenomena in epoxy floor coating by epoxy priming & screed method / Akshay A. Masule in PAINTINDIA, Vol. LXXI, N° 12 (12/2021)
[article]
Titre : Resolution of blistering phenomena in epoxy floor coating by epoxy priming & screed method Type de document : texte imprimé Auteurs : Akshay A. Masule, Auteur Année de publication : 2021 Article en page(s) : p. 60-68 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cloquage (défauts)
Décollement cathodique (revêtement)
Epoxydes
Osmose
Primaire (revêtement)
Revêtements -- Analyse
Revêtements -- Défauts
Revêtements -- Finition
Revêtements de sols
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Epoxies have already been used for impregnation and coating of concrete parts since more than 40 years. To those of us who coat concrete floors, it is a well-known fact that blisters sometimes develop weeks or months after the coating has been successfully applied. The problem is most prevalent with coatings applied to on-grade concrete floor slabs, although it also can occur on elevated floor slabs. Coatings on concrete walls seldom fait by blistering, perhaps because of differences related to construction: walls are poured and cured in forms ; floor slabs are cast in place and exposed to the atmosphere during cure. Excessive water in concrete affects many Norming materials and leading to their early failure. In many cases the floorings are badly blistered, each blister containing an aqueous solution under compression.
There are many ways blisters are formed. The ideas presented in this article pertain principally, if not exclusively, to horizontal concrete slabs cured open to the air. The paper evaluates and discusses the findings on the site and in the laboratory, and tries to determine the causes of the blistering, and the ways to avoid it.Note de contenu : - Osmosis term
- Experimental work : Primer layer - General importance of priming - Precaution before application
- Accomplishment
- Top coat epoxy flooring
- Laboratory demonstrations
- Analysis
- Paper statementEn ligne : https://drive.google.com/file/d/1W-T806es4uutDIEtA-AAi54sKfLOgPFW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37115
in PAINTINDIA > Vol. LXXI, N° 12 (12/2021) . - p. 60-68[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23262 - Périodique Bibliothèque principale Documentaires Disponible Review of crater in cathodic electrodeposition coating and their different cause / Akshay A. Masule in PAINTINDIA, Vol. LXXI, N° 10 (10/2021)
[article]
Titre : Review of crater in cathodic electrodeposition coating and their different cause Type de document : texte imprimé Auteurs : Akshay A. Masule, Auteur Année de publication : 2021 Article en page(s) : p. 63-70 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Automobiles -- Revêtements:Automobiles -- Peinture
Cratère (défaut)
Dépôt électrolytique
Métaux -- Revêtements
Primaire (revêtement)
Revêtements -- Analyse
Revêtements -- Défauts:Peinture -- Défauts
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Cationic electrodeposition primers have been widely adopted by automobile companies due to their advantages with regard to application and corrosion resistance Cationic electrodeposition primers, on the other hand, can leave craters on precoated steel sheets under certain conditions. Asa result, it's critical to figure out the actual mechanism of cratering from the perspective of cratering control.
Resistance-time profiles generated using recorded current and voltage at the early step of electrodeposition were explored in this study employing digitised measurements to record data on mil lisecond time scales. The findings show that during electrocoating, a violent hydrogen gas is created locally, causing the electrodeposited paint film to burst, and defect left in the deposited layer following electrodeposition produce cratering when the paint film has dried.
The authors looked into the following aspects to better understand the cratering mechanism in cationic electrodeposition coating : the current of electrodeposition, the structure and characteristics of the crater, and the deposition and curing of paint.Note de contenu : - EXPERIMENTAL : Steel sheet specimens - Materials - Cationic electro paints - Electrode-position coating method
- RESULTS : Conditions for crater formation - Hydrogen evolution mechanism and oxygen absorption mechanism - Evolution of hydrogen - Energization requirements
- RESULTS AND CONSIDERATION : Infrared spectrographic analysis (IR) - Gel permeation chromatography (GPC) - Behaviour of the paint during baking
- DISCUSSION : Cratering process - Measures to prevent crateringEn ligne : https://drive.google.com/file/d/1bb2kiv9tgIndyfTCBLcBRhYUmhnn21zy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36880
in PAINTINDIA > Vol. LXXI, N° 10 (10/2021) . - p. 63-70[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23037 - Périodique Bibliothèque principale Documentaires Disponible A review on : CNSL based polyurethane, polyester and polyurea coatings / Sonam Saxena in PAINTINDIA, Vol. LXIX, N° 11 (11/2019)
[article]
Titre : A review on : CNSL based polyurethane, polyester and polyurea coatings Type de document : texte imprimé Auteurs : Sonam Saxena, Auteur ; Narayani Rajagopalan, Auteur ; Chinmaya Nayak, Auteur Année de publication : 2019 Article en page(s) : p. 55-64 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Noix de cajou et constituants
Polyesters
Polyurée
Polyuréthanes
Ressources renouvelables
Revêtements -- Analyse:Peinture -- Analyse
Revêtements organiques
Structure chimiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Cashew nut shell liquid (CNSL) and its main derivative, cardanol offers a number of polymerization reaction due to the inherent chemical structure containing a reactive phenolic group and an unsaturated aliphatic chain in the meta position of the aromatic ring. Also, as a natural product, CNSL is an alternative resource to synthesize various resins and coatings contributing to green and sustainable technology. The present review focuses the work done with CNSL and its derivatives to develop coatings namely, polyurethane, polyester and polyurea coating along studies done with respect to the functional properties of the with coatings developed. Note de contenu : - SYNTHESIS AND CHARACTERISTICS OF CNSL
- CNSL BASED COATINGS : CNSL based polyurethane coatings - CNSL based polyurea coating - CNSL based polyester coating
- Fig. 1 : Chemical composition of CNSL
- Fig. 2 : Decarboxylation of anacardic acid to cardanol
- Fig. 3 : Percentage water absorption measured for all the cured films after 24h dip test
- Fig. 4 : DSC spectrum for N-75 cured coatings and DSC spectrumfor N-3390 cured coatings
- Fig. 5 : Tafel graphs for N-75 cured coatings in 3.5% NaCl solution and Tafel graphs for N-3390 cured coatings in 3.5% NaCl solution
- Fig. 6 : FTIR spectra for NC-514 and CC evaluated in chloroform solvent
- Fig. 7 : TGA graph of NIPU coatings
- Fig. 9 : Bode plots of 2K-aqueous polyurethane coatings HDI based system and IPDI based system
- Fig. 10 : Synthesis of epoxidized cardanol and cardanol based polyols
- Fig. 11 : DSC thermograms of UV-PUD films
- Fig. 12 : TGA curves of the cured films
- Fig. 13 : TGA of HDI and IPDI based coating
- Fig. 14 : Bode plot of HDI and IPDI based coatings
- Fig. 15 : Tafel plots of HDI and IPDI based coatings
- Table 1 : Physical and chemical properties of CNSLEn ligne : https://drive.google.com/file/d/1stSa3ITAJ3XsITtOfS2WPbm8xfR5xXMj/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33634
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Code-barres Cote Support Localisation Section Disponibilité 21460 - 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)
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