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What is your dehumidification IQ ? / Russ Brown in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 34, N° 5 (05/2017)
[article]
Titre : What is your dehumidification IQ ? : Answers to the 12 most common DH question Type de document : texte imprimé Auteurs : Russ Brown, Auteur ; Loyd Krueger, Auteur Année de publication : 2017 Article en page(s) : p. 46-50 Langues : Américain (ame) Catégories : Air -- Humidité
DeshumidificationIndex. décimale : 667.9 Revêtements et enduits Résumé : Over the past 30 years, the use of dehumidification (DH) equipment on blasting and coating projects has become a standard practice. The ability to control the escalation of corrosion on a freshly blasted surface has provided many benefits that have certainly led to the overall advancement in the use of this technology. In simple terms, dehumidification is the removal of moisture from the air. In reality, that definition is where the simplicity ends. Thousands of coating projects have employed dehumidification and we still continue to swim through a sea of misunderstandings about this somewhat simple technology.
This article will tackle some of the most commonly asked questions related to dehumidification. Certainly there are many others out there, but these 12 seem to be asked regularly and create the most confusion. But be aware that no one answer is always correct for every situation. It is always a good idea to talk with your climate-control provider when making decisions.Note de contenu : 1. How do I pair DH with a dust collector ?
2. Why can’t I seal up my tank and shut all the hatches when dehumidifying ?
3. How long can I hold my blast if the DH unit goes down ?
4. Can I turn my units on and off with remote monitoring equipment ?
5. How can I save money when using a desiccant system ?
6. When does utilizing an alternative fuel solution make sense ?
7. What is a hybrid dehumidifier and how is it different from a typical desiccant unit ?
8. How does the length of duct affect performance ?
9. Does DH mask chloride contamination ?
10. Do I really need a DH unit in the dead of winter ?
11. Where did the 17-degree dew-point spread come from? What happened to the 5-degree spread ?
12. How do I select a climate-control contractor ?
Table : Cost Comparison of Alternative Fuel SourcesEn ligne : http://www.paintsquare.com/archive/?fuseaction=view&articleid=6067 Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29084
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 34, N° 5 (05/2017) . - p. 46-50[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19010 - Périodique Bibliothèque principale Documentaires Disponible Wood surfaces protected with transparent multilayer UV-cured coatings reinforced with nanosilica and nanoclay. Part II : Application of a standardized test method to study the effect of relative humidity on scratch resistance / William Nguegang Nkeuwa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 6 (11/2014)
[article]
Titre : Wood surfaces protected with transparent multilayer UV-cured coatings reinforced with nanosilica and nanoclay. Part II : Application of a standardized test method to study the effect of relative humidity on scratch resistance Type de document : texte imprimé Auteurs : William Nguegang Nkeuwa, Auteur ; Bernard Riedl, Auteur ; Véronic Landry, Auteur Année de publication : 2014 Article en page(s) : p. 993-1011 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Air -- Humidité
Argile
Bois
Bois -- Revêtements
Caractérisation
Essais (technologie)
Essais de résilience
Evaluation
Nanoparticules
Revêtements -- Séchage sous rayonnement ultraviolet:Peinture -- Séchage sous rayonnement ultraviolet
Revêtements multicouches
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
StatistiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Coated wood surfaces of components constituting flooring and furniture for interior end uses that exhibit good tribological properties are highly desirable. Surfaces of yellow birch wood (Betula alleghaniensis Britton) were protected with six different types of multilayer coatings (MCs) developed in this study. Each MC consisted of three layers: primer, sealer, and topcoat. UV-curable primer and topcoat formulations were, respectively, reinforced with a hydrophobic fumed silica (NS: 0 and 0.5 wt% in the formulation) and nanoclay (NC: 0, 1, and 3 wt% in the formulation). The scratch resistance of MCs on wood surfaces conditioned at 40% and 80% relative humidity (RH) was quantitatively and qualitatively studied. Quantitative evaluation was performed according to a standardized scratch test, while scanning electron microscopy (SEM) analysis was used for qualitative evaluation. Statistical results have shown that NS, NC, and NS × NC do not have a significant effect on scratch resistance of coated wood surfaces, whereas the effect of RH is significant. Regardless of RH, SEM images reveal that: (i) there is no sign of lack of adhesion between coating layers and the MCs/wood surfaces interface and (ii) all the MCs seem to have a ductile/brittle response to scratching. Qualitative information was in accordance with quantitative results. Note de contenu : - EXPERIMENTAL : Materials - Statistical design - Wood surface preparation - Formulations application and UV-curing processes - Preparation and conditioning of coated wood samples - Characterization - Statistical analysis
- RESULTS AND DISCUSSION : Quantitative evaluation of scratch resistance of multilayer coatings on wood surfaces - Qualitative evaluation of scratch resistance of multilayer coatings on wood surfacesDOI : 10.1007/s11998-014-9609-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9609-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22321
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 6 (11/2014) . - p. 993-1011[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16659 - Périodique Bibliothèque principale Documentaires Disponible