11 résultat(s) recherche sur le tag 'humidité''

Coatings applied on damp building substrates : performance and influence on moisture transport / Vânia Brito in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 4 (07/2011)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 4 (07/2011) . - p. 513-525 Titre : Coatings applied on damp building substrates : performance and influence on moisture transport Type de document : texte imprimé Auteurs : Vânia Brito, Auteur ; Teresa Diaz Gonçalves, Auteur ; Paulina Faria, Auteur Année de publication : 2011 Article en page(s) : p. 513-525 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Revêtements en bâtiment Tags : 'Système  peinture'  'Bâtiment  ancien'  'Substrat  humide'  Séchage  'Transport  humidité' Index. décimale : 667.9 Revêtements et enduits Résumé : Dampness is a common condition in old buildings and, accordingly, many paint systems specific for this type of building allow for application on walls with nonnegligible moisture content. In spite of that, performance evaluation of these paints is normally carried out using dry substrates or even on free paint films. This article presents research performed on 16 commercial paint systems: seven silicate, three silicone, three hydro-pliolite and two lime-based systems, as well as one common vinyl emulsion paint that served as reference. Each paint was applied and cured both on dry and on damp mortar substrates. The test specimens were subjected to water vapor permeability tests and evaporative drying tests. The following conclusions could be drawn: (i) the way paint systems influence the drying of the substrate, to which they were applied and where they cured, may vary significantly depending on the moisture content of that substrate; (ii) vapor permeability, measured with specimens applied and cured on dry substrate, may be an acceptable way of predicting a paint's influence on drying, provided that the paints are applied and cured on dry substrate or that their characteristics are not significantly affected by the moisture content of that substrate. Note de contenu : MATERIALS : Paint systems - Substrate material METHODS : Preparation of the test specimens - Water vapor permeability tests Drying tests DISCUSSION : Effect of the moistening condition of the substrate - Comparison between the performance of the different paint systems - Correlation between vapor permeability and drying index DOI : 10.1007/s11998-010-9319-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9319-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12145 [article]

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Computer modelling of steady-state moisture diffusion through wood/aluminium windows with different coatings / Gerhard Grüll in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B2 (06/2006)  

[article]  inSURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B2 (06/2006) . - p. 99-107 Titre : Computer modelling of steady-state moisture diffusion through wood/aluminium windows with different coatings Type de document : texte imprimé Auteurs : Gerhard Grüll, Auteur ; A. Teischinger, Auteur ; R. Fitl, Auteur Année de publication : 2006 Article en page(s) : p. 99-107 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Diffusion  'Protection  contre  l'humidité'  'Teneur  en  humidité'  'Revêtements  bois'  'Fenêtres  bois/aluminium' Index. décimale : 667.9 Revêtements et enduits Résumé : Steady-state moisture diffusion through wood/aluminium windows was simulated by using computer software utilising the finite-element-method. The water-vapour permeability of the coating was varied on different model-windows. The results showed that wood coatings can help to reduce the differences in equilibrium wood moisture between the exterior and interior sides of the wooden profiles when interior humidity stress occurs. Coatings with low permeability can promote the accumulation of moisture on the exterior side. The same, or even a better quality of protection against interior humidity stress, as with high built coatings, can be obtained by medium-built coatings with higher permeability. An optimal moisture balance in the wooden profiles was achieved by using a low permeable coating on the interior side and a more permeable coating on the exterior side. Note de contenu : - Table 1 : Water-vapour permeability of the coatings on the exterior and interior side of the model windows - Table 2 : Calculated values of relative humidity in the pores of the wooden profiles of the casements - Table 3 : Estimated equilibrium wood moisture content in the wooden profiles of the casements - Table 4 : Calculated values of relative humidity in the pores of the wooden profiles of the frames - Table 5 : estimated equilibrium wood moisture content in the wooden profiles of the frames DOI : 10.1007/BF02699639 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699639.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5380 [article]

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Enhancing the performance of aromatic PU sealant prepolymers / Neil Carter in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4573 (06/2012)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 202, N° 4573 (06/2012) . - p. 37-38 Titre : Enhancing the performance of aromatic PU sealant prepolymers Type de document : texte imprimé Auteurs : Neil Carter, Auteur Année de publication : 2012 Article en page(s) : p. 37-38 Langues : Anglais (eng) Catégories : Colles:Adhésifs Tags : 'Joint  adhésifs'  Polyuréthane  'Prépolymères  aromatique'  Durcisseurs  Oxazolidine  Isocyanates  'Elimination  gaz'  'Dioxyde  carbone'  Hydrolyse  'Résistance  traction'  'Stabilité  stockage'  humidité' Index. décimale : 668.3 Adhésifs et produits semblables Résumé : While there have been a number of technical advances in the resins used in construction sealants, polyurethane chemistry continues to offer the best balance of cost and performance. Note de contenu : - Dealing with moisture ingress - Oxazolidines eliminate gassing - Through cure/hardness development - Impact on storage stability - Impact on tensile strength En ligne : https://drive.google.com/file/d/18V-QaqFKbCCdl1fkudtvmkU4l_QMZDMF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15264 [article]

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Examination of efficiency and sufficiency of salt-pack curing method / Emel Aslan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 3 (05-06/2011)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 95, N° 3 (05-06/2011) . - p. 98-103 Titre : Examination of efficiency and sufficiency of salt-pack curing method Type de document : texte imprimé Auteurs : Emel Aslan, Auteur ; Meral Birbir, Auteur Année de publication : 2011 Article en page(s) : p. 98-103 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Conservation Tags : Peau  'Méthodes  conservation'  'Cristaux  sel'  'Teneur  humidité'  cendres'  'Mesure  pH'  'Prolifération  bactérienne'  'Bactéries  lipolytique'  mésophiles'  protéolytiques' Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Conservation defects affect leather quality adversely and cause important economic losses. Therefore, the goal of this study was to evaluate hide quality by comparing important parameters of salt-pack cured hides and determine efficiency and sufficiency of the curing method in the areas both with and without salt crystals present on the hides. The areas with and without salt crystals on the salt-pack cured hide samples, (collected from different tanneries in the leather Organized Tannery Region, Tuzla-Istanbul-Turkey), were examined in terms of pH values, moisture and ash contents, brine saturations, total mesophile, proteolytic and lipolytic mesophile bacterial numbers. The pH values of the both areas of all the hide samples (6.3-7.4) were found to be optimum for bacterial growth. Moisture contents of the areas without salt crystals present on the hide samples (42-57 %). Ash contents and salt saturations of both types of area of all the hide samples (21-36 %) and 100 % respectively) were found to be the same as standard values. Although the hides were salt-pack cured, high numbers of mesophile, proteolytic and lipolytic mesophile bacteria were isolated from both areas of the hides. Mean values of the mesophile (2X10 7 c.f.u/g, 1.5 X 10 7 c.f.u./g). As a conclusion, due to an inadequately applied salt-pack curing process, this method was not a satisfactory method to prevent bacterial proliferation on hides. Hence, the traditional salt-pack curing method should be modified to improve the counter bacterial effect. Note de contenu : - Collection of the salt-pack cured hide samples from different tanneries - Measurement of pH values of the areas with and without salt crystals of the salt-pack cured hides - Moisture, ash and salt saturation of the areas with and without salt crystals of the salt-pack cured hides - Examination of mesophilic, proteolytic and lipolytic mesophilic bacteria at the areas with and without salt crystals of the salt-pack cured hides. En ligne : https://drive.google.com/file/d/1g_fTb0FIPiCrFlfl4DmiG47O4D8ivFD2/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11877 [article]

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Stone look from an injection mold / Franz Tschacha in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 11 (11/2011)

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 101, N° 11 (11/2011) . - p. 6-8 Titre : Stone look from an injection mold Type de document : texte imprimé Auteurs : Franz Tschacha, Auteur ; Hubert Schmid, Auteur Année de publication : 2011 Article en page(s) : p. 6-8 Langues : Anglais (eng) Catégories : Applications extérieures Canaux chauffants Décoration et ornement Matières plastiques -- Moulage par injection Matières plastiques -- Moulage par injection -- Appareils et matériel Panneaux muraux préfabriqués Polypropylène Tags : 'Panneaux  plastiques'  'Mur  plastiques  'Façade  maison'  'Imitation  pierre'  Digitalisation  'Protection  humidité' Index. décimale : 668.4 Plastiques, vinyles Résumé : Plastic Wall Panels for the International Market - The plastic panels that are frequently used in North America to protect the facade of wood-frame houses not only eliminate the need for annual painting, but also offer a variety of opportunities to increase the value of the house. For instance, by texturing the mold cavity’s surface, it is possible to give the panels the appearance of a stone wall. This approach is also being used increasingly in Russia. Note de contenu : - Surfaces designed by stonemasons are digitized - Moisture remains outside Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13159 [article]

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Synthesis and pigmental properties of titanium phosphates with the addition of urea / Hiroaki Onoda in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 34, N° 1 (02/2012)  

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Characterizing the composition of underarm and forearm skin using confocal raman spectroscopy / J. Q. Wu in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 33, N° 3 (06/2011)  

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Comparative performance evaluation of paint systems based on uralkyd, alkyd and two pack polyurethanes / Ramanuj Narayan in PAINTINDIA, Vol. XLVIII, N° 9 (09/1998)

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High thermal resistant insulating varnish based on natural resin shellac and alkyd/polyamide resins / D. N. Goswami in PAINTINDIA, Vol. LIX, N° 12 (12/2009)

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Silicone adhesives and sealing materials / Edward A. Joseph in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4533 (02/2009)  

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Skin characteristics following repeated exposure to simulated outdoor and indoor summer temperatures in South Korea and Southeast Asia / Sue Im Jang in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 43, N° 3 (06/2021)  

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