50 résultat(s) recherche sur le tag 'UV'

UV-visible technique for studying powder coatings and their dissolution / Önder Pekcan in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 73, N° 923 (12/2001)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 73, N° 923 (12/2001) . - p. 51-60 Titre : UV-visible technique for studying powder coatings and their dissolution Type de document : texte imprimé Auteurs : Önder Pekcan, Auteur ; Ertan Arda, Auteur Année de publication : 2001 Article en page(s) : p. 51-60 Note générale : Bibliogr. Langues : Américain (ame) Tags : Etude  expérimentale  Spectrométrie  UV  visible  Recuit  Traitement  thermique  Heptane  Chloroforme  Solvant  organique  Dissolution  Méthacrylate  de  méthyle  polymère  Latex  Formation  film  Peinture  poudre  Matériau  revêtement Index. décimale : 667.9 Revêtements et enduits Résumé : UV-Visible (UVV) technique was used to monitor powder coating and its dissolution processes from hard latex particles. Three sets of latex coatings were prepared from poly(methyl methacrylate) (PMMA) particles. The first set of coatings was annealed at elevated temperatures in various time intervals during which reflected photon intensity, Irf, was measured. The second set of coatings was annealed at various temperatures in 10 min time intervals during which transmitted intensity, Itr, was measured. Irf first decreased and then increased as the annealing temperature was increased. Decrease in Irf was explained with the void closure mechanism due to viscous flow. Increase in Itr and Irf against time and temperature were attributed to an increase in crossing density at the junction surface. The activation energy of viscous flow, delta H, was measured and found to be around 8 kcal/mol and the back and forth activation energies (delta Erf and delta Etr) were measured and found to be around 49 and 53 kcal/mol for a reptating polymer chain across the junction surface. Diffusion of solvent molecules (chloroform) into the annealed latex coatings was followed by desorption of PMMA chains for the third set of films. Desorption of pyrene, P, labeled PMMA chains was monitored in real-time by the absorbance change of pyrene in the polymer-solvent mixture. A diffusion model with a moving boundary was employed to quantify real-time UVV data. Diffusion coefficients of desorbed PMMA chains were measured and found to be between 2 and 0.6 x 10-11 cm2 s-1 in the 100 and 275°C temperature range. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5771 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001231	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Proposed protocol for determination of photostability Part I : cosmetic UV filters / G. Berset in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 18, N° 4 (08/1996)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 18, N° 4 (08/1996) . - p. 167-177 Titre : Proposed protocol for determination of photostability Part I : cosmetic UV filters Type de document : texte imprimé Auteurs : G. Berset, Auteur ; H. Gonzenbach, Auteur ; R. Christ, Auteur ; R. Martin, Auteur ; A. Deflandre, Auteur ; R. E. Mascotto, Auteur ; J. D. R. Jolley, Auteur ; W. Lowell, Auteur ; R. Pelzer, Auteur ; T. Stiehm, Auteur Année de publication : 1996 Article en page(s) : p. 167-177 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Photostability  Cosmetic  UV  filters  UV-B  UV-A  In  vitro  model Index. décimale : 668.5 Parfums et cosmétiques Résumé : Le présent protocole a été développé afin de mesurer la stabilité des filtres UV-B. Une version modifiée est recommandée en ce qui concerne les filtres UV-A. Ce protocole de test doit être considéré comme un instrument servant à la prédiction de l'efficacité restante après exposition à la lumière. Il s'agit d'un modèle in vitro simple et fiable simulant les conditions d'utilisation réelle. Les résultats ont montré que chaque filtre nécessite un choix approprié de conditions analytiques optimisées et reproductibles. Bien que les valeurs absolues soient directement influencées par des incertitudes en irradiance (dosimétrie), des mesures comparatives par rapport à un standard connu sont très fiables. DOI : 10.1111/j.1467-2494.1996.tb00145.x En ligne : https://onlinelibrary.wiley.com/doi/10.1111/j.1467-2494.1996.tb00145.x Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5086 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003954	-	Périodique	Bibliothèque principale	Documentaires	Disponible
003955	-	Périodique	Bibliothèque principale	Documentaires	Disponible

UV curing of aqueous polyurethane acrylate dispersions. A comparative study by real-time FTIR spectroscopy and pilot scale curing / Armin Tauber in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 911 (12/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 911 (12/2000) . - p. 51-60 Titre : UV curing of aqueous polyurethane acrylate dispersions. A comparative study by real-time FTIR spectroscopy and pilot scale curing Type de document : texte imprimé Auteurs : Armin Tauber, Auteur ; Tom Scherzer, Auteur ; Reiner Mehnert, Auteur Année de publication : 2000 Article en page(s) : p. 51-60 Note générale : Bibliogr. Langues : Américain (ame) Tags : Revêtement  Peinture  eau  Durcissement  Rayonnement  UV  Dispersion  aqueuse  Uréthanne  polymère  Acrylate  Spectrométrie  IR  Transformation  Fourier  Temps  réel  Echelle  pilote  Etude  comparative  Photoamorceur  expérimentale Index. décimale : 667.9 Revêtements et enduits Résumé : Real-time FTIR spectroscopy was used to study the chemical and physical factors, e.g., photoinitiator and temperature, affecting the UV curing of dried films from aqueous polyurethane acrylate dispersions. Poor conversion of the acrylate double bonds (67%) observed at room temperature can be overcome by irradiation at elevated temperatures. At 353 K almost complete conversion is observed, even with reduced photoinitiator content. Single or multiple UV-light flash experiments were performed to simulate technical parameters, e.g., cure speed and number of required UV lamps, with the help of RTIR spectroscopy. The results obtained were confirmed by pilot-scale UV curing experiments: one or, at most, two UV lamps of high intensity are sufficient for the curing process with respect to the double-bond conversion. The coatings based on the polyurethane acrylate dispersion show low sensitivity towards oxygen from air. Moreover, in comparison to UV curing under inert nitrogen atmosphere, a small positive effect on the conversion in the presence of air has been observed, which might be due to the contribution of peroxyl radicals or their decomposition products to curing. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5586 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001219	-	Périodique	Bibliothèque principale	Documentaires	Disponible
001218	-	Périodique	Bibliothèque principale	Documentaires	Disponible

UV curing of a pressure sensitive adhesive coating studied by real - time ftir spectroscopy and laboratory scale curing experiments / Armin Tauber in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 927 (04/2002)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 74, N° 927 (04/2002) . - p. 41-47 Titre : UV curing of a pressure sensitive adhesive coating studied by real - time ftir spectroscopy and laboratory scale curing experiments Type de document : texte imprimé Auteurs : Armin Tauber, Auteur ; Tom Scherzer, Auteur ; Ingeborg Weib, Auteur ; Reiner Mehnert, Auteur Année de publication : 2002 Article en page(s) : p. 41-47 Note générale : Bibliogr. Langues : Américain (ame) Tags : Etude  expérimentale  Temps  réel  Transformation  Fourier  Spectrométrie  IR  Rayonnement  UV  Réticulation  Durcissement  Autoadhésif Index. décimale : 667.9 Revêtements et enduits Résumé : Real-time FTIR spectroscopy was used to study the UV-light induced crosslinking of a pressure sensitive adhesive based on a saturated acrylic polymer bearing a photoreactive functional group in the side chain. To simulate production parameters, e.g., cure speed and number of required UV lamps, single or multiple UV-light flash experiments were performed which have shown that the amount of crosslinked polymer chains in the adhesive depends on the applied UV dose. The same result was observed by varying the intensity of the UV-light. The properties of the pressure sensitive adhesive, e.g., peel and shear strength, were determined by UV curing using a laboratory irradiation unit. These results were compared with those of the RTIR spectroscopy experiments. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5666 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001238	-	Périodique	Bibliothèque principale	Documentaires	Disponible

UV-PUDs for topcoats / Xavier Deruyttere in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4537 (06/2009)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 199, N° 4537 (06/2009) . - p. 24-25 Titre : UV-PUDs for topcoats Type de document : texte imprimé Auteurs : Xavier Deruyttere, Auteur ; M. Heylen, Auteur ; Philippe de Micheli, Auteur Année de publication : 2009 Article en page(s) : p. 24-25 Langues : Anglais (eng) Tags : Revêtement  Finition  bois  Brillant  Réticulation  UV  Polyuréthane  dispersion Index. décimale : 667.9 Revêtements et enduits Résumé : Wood finishes - The gloss finish solutions the development of a UV-PUD achieve on wood and plastic substrates. En ligne : https://drive.google.com/file/d/11NknUAysfqzu4XjWX1U-QunDZ-8Pi6Kc/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8512 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
011442	-	Périodique	Bibliothèque principale	Documentaires	Disponible

New systems of broad-spectrum UV protection / Uli Osterwalder in IFSCC MAGAZINE, Vol. 5, N° 3 (07-08-09/2002)

Permalink

A bioactive complex to protect proteins from UV-induced oxidation in human epidermis1 / Kuno Schweikert in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 32, N° 1 (02/2010)  

Permalink

Cationic uv-cured coatings containing epoxidized soybean oil initiated by new onium salts containing tetrakis (pentafluorophenyl) gallate anion / Haiyan Gu in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 927 (04/2002)

Permalink

Chemical depth profiling of automotive coating systems using slab microtome sectioning with IR/UV-VIS spectroscopy and optical microscopy / Karlis Adamsons in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 924 (01/2002)

Permalink

Detrended fluctuation analysis of UV degradation in a polyurethane coating / Mark A. Johnson in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 941 (06/2003)

Permalink

Evaluation of black tea gel and its protection potential against UV / M. Turkoglu in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 29, N° 6 (12/2007)  

Permalink

Long-term weathering behavior of UV-curable clearcoats : Depth profiling of photooxidation, UVA, and HALS distributions / Christopher M. Seubert in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 7 (07/2005)  

Permalink

Model for the effects of water on the cationic UV-Curing of cyclohexyl epoxides / Mark D. Soucek in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 937 (02/2003)

Permalink

Optimization of UV curable acrylated polyester-polyuréthane/polysiloxane ceramer coatings using a response surface methodology / Ahmet Nebioglu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 1 (01/2006)  

Permalink

A quick, practical test procedure to evaluate the performance of instruments used for in vitro UV protection measurements / E. Klette in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 24, N° 6 (12/2002)  

Permalink

Recent developments in UV cure photoinitiators / R. D. Kulkarni in PAINTINDIA, Vol. LXI, N° 5 (05/2011)

Permalink

Surface pattern formation in UV-curable coatings / André Luciani in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 909 (10/2000)

Permalink

Thermal and mechanical properties of UV - cured acrylated hyperbranched polyester and its blends with linear polyurethane acrylate / Wei Huanyu in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 939 (04/2003)

Permalink

Unexpected electronic effects on benzotriazole UV absorber photostability / Joseph C. Suhadolnik in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 924 (01/2002)

Permalink

Analysing depth profile of double bond conversion / Rong Bao in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4535 (04/2009)  

Permalink

Determination of butyl methoxydibenzoylmethane, benzophenone-3, octyl dimethyl PABA and octyl methoxycinnamate in lipsticks / Amparo Salvador in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 25, N° 3 (06/2003)  

Permalink

Un appareil de mesure d'érythème portatif et ses applications sur la peau humaine / A. D. Pearse in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 12, N° 2 (04/1990)  

Permalink

Effect of nano-Al2O3 particles on the corrosion behavior of alkyd based waterborne coatings / Shailesh K. Dhoke in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 3 (09/2009)  

Permalink

Hindered amine light stabilizers in pigmented coatings / Christian Schaller in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 1 (03/2009)  

Permalink

Hybrid organic/inorganic coatings produced using a dual-cure mechanism / Jie He in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 4 (07/2012)  

Permalink

Hydroxy dimetoxybenzyl malonate : a novel anti-(photo)aging concept / Thomas Rudolph in IFSCC MAGAZINE, Vol. 9, N° 3 (07-08-09/2006)

Permalink

Identification and determination butylmethoxydibenzoylmethane in the presence benzophenone-3 and ethylhexylmethoxycinnamate in suncare preparation / B. Imamovic in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 31, N° 5 (10/2009)  

Permalink

Identification and quantitative analysis of kojic acid and arbutine in skin-whitening cosmetics / M.-O. Masse in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 23, N° 4 (08/2001)  

Permalink

Nanotechnology and coatings Q & A / Vinayak M. Natu in PAINTINDIA, Vol. LVIII, N° 5 (05/2008)

Permalink

New developments in radiation - curable powder coatings / Saskia Udding-Louwrier in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 904 (05/2000)

Permalink

On the combined use of UVA, HALS, photooxidation, and fracture energy measurements to anticipate the long-term weathering performance of clearcoat/basecoat automotive paint systems / J. L. Gerlock in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 73, N° 918 (07/2001)

Permalink

Skin permeation of two different benzophenone derivatives from various vehicles / E. Kurul in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 23, N° 4 (08/2001)  

Permalink

Synthesis of mono-dispersed spherical silica particles containing covalently bonded chromophores / T. Walenzyk in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 27, N° 3 (06/2005)  

Permalink

The Impact of Fluorescent Compounds on the Change in Shade of Pastel Colored PES/Cotton Fabrics / T. Pusic in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 6/2008 (11-12/2008)

Permalink

Toward a lignin protection strategy / Scott Edris in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4537 (06/2009)  

Permalink

Ultraviolet chambers based on integrating spheres for use in artificial weathering / Joannie W. Chin in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 929 (06/2002)

Permalink

Unifying model for associative thickener influences on waterborne coatings : II. Competitive adsorption of nonionic surfactants and HEUR thickeners on titanium dioxide pretreated with inorganic stabilizers and organic oligomeric dispersants / Ming-Ren Tarng in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 935 (12/2002)

Permalink

Use of reactable light stabilizers to prevent migration and to improve durability of coatings On plastic substrates / Nancy Cliff in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 5 (01/2005)  

Permalink

Le vieillissement et la formation de radicaux libres. Une approche bio-chimique de l'évolution des efficacités pharmaceutiques / E. Mignini in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 11, N° 1 (02/1989)  

Permalink

What is the most suitable strategy for stress proteins in cosmetics? / Christine Jeanmaire in IFSCC MAGAZINE, Vol. 6, N° 3 (07-08-09/2003)

Permalink

Zero VOC sunlight curable coatings / Huilei Zhang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 903 (04/2000)

Permalink

Accelerated weathering of wood surfaces coated with multifunctional alkoxysilanes by sol-gel deposition / Mandla A. Tshabalala in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 943 (08/2003)  

Permalink

Cost-effective solutions / Paul Dietz in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4543 (12/2009)  

Permalink

Identification de filtres solaires dérivés de l'acide para-aminobenzoique par spectroscopie RMN et par CPG/SM / M.-O. Masse in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 23, N° 5 (10/2001)  

Permalink

Intrinsic and extrinsic factors in skin ageing : a review / M. A. Farage in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 30, N° 2 (04/2008)  

Permalink

A new device for objective assessment of skin type in Caucasians by violet light reflectance / P. Rubegni in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 24, N° 4 (08/2002)  

Permalink

Protection against singlet oxygen, the main actor of sebum squalene peroxidation during sun exposure, using Commiphora myrrha essential oil / B. Auffray in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 29, N° 1 (02/2007)  

Permalink

Quantitative spectroscopy to determine the effects of photodegradation on a model polyester - urethane coating / S. G. Scroll in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 945 (10/2003)

Permalink

Relating laboratory and outdoor exposure of coatings : II. Effects of relative humidity on photodegradation and the apparent quantum yield of acrylic - melamine coatings / Tinh Nguyen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 932 (09/2002)

Permalink

Sunscreens' photochemical behaviour : in vivo evaluation by the stripping method / G. Marginean Lazar in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 19, N° 2 (04/1997)  

Permalink