Accueil
Résultat de la recherche
4 résultat(s) recherche sur le tag ''UV'
Ajouter le résultat dans votre panier Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche
Heat shock response and UV protection / Friedhelm Steckel in IFSCC MAGAZINE, Vol. 2, N° 1 (01-02-03/1999)
[article]
Titre : Heat shock response and UV protection : a study of heat shock proteins in cultured human skin cells Type de document : texte imprimé Auteurs : Friedhelm Steckel, Auteur ; Dieter Pollet, Auteur ; Ramon Gieseler, Auteur ; U. Hoppe, Auteur Année de publication : 1999 Article en page(s) : p. 17-22 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Heat shock proteins' 'UV radiation' Photodamage 'DNA damage' protection' Index. décimale : 668.5 Parfums et cosmétiques Résumé : In the studies presented here, the induction of heat shock proteins (HSP) in cultured human skin cells were investigated. Furthermore, the protective effect of a heat shock response towards the damaging action of UV irradiation on fibroblasts was examined. Intracellular HSP72 protein levels were quantified using a flow-c ytometer after immunostaining and damaged cells were identified 24h post UV-exposure by their nuclear fluorescence after staining with propidium iodide. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10851
in IFSCC MAGAZINE > Vol. 2, N° 1 (01-02-03/1999) . - p. 17-22[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008184 - Périodique Bibliothèque principale Documentaires Disponible Recent developments in UV cure epoxy acrylate oligomers / R. D. Kulkarni in PAINTINDIA, Vol. LXI, N° 7 (07/2011)
[article]
Titre : Recent developments in UV cure epoxy acrylate oligomers Type de document : texte imprimé Auteurs : R. D. Kulkarni, Auteur ; M. E. Chaudhari, Auteur ; S. Mishra, Auteur Année de publication : 2011 Article en page(s) : p. 58-64 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acrylates Les monomères acrylates sont un groupe d'esters faisant partie des vinyles, car renfermant une double liaison carbone-carbone et sont utilisés pour former des polyacryliques qui ont de multiples usages.
Epoxydes
Éther de diglycidyle et de bisphénol A
Oligomères
Réticulation (polymérisation)
Revêtements -- Séchage sous rayonnement ultravioletTags : 'UV curing' Oligomères 'Éther de diglycidyle et bisphénol A' 'Epoxy acrylate' 'Epoxyde cycloaliphatique' 'Monomère acrylate hybride' Index. décimale : 667.9 Revêtements et enduits Résumé : The performance properties and industrial applications of epoxy acrylate prepolymer based UV cure coatings are primarilygoverned by the nature of structural modification in backbone / en capping of pre polymer. The present review paper therefore covers the recent developments in the synthesis and characterisation of diverse epoxy acrylate oligomers including acrylate capped BPA/novolac epoxy, epoxidised oils and cycloaliphatic epoxy systems. The alkoxysilane, siloxane, adipic acid, fluorinated and phenyl phtalazinone modifications of epoxy diacrylate for obtaining special performance properties have been highlighted. Note de contenu : - Acrylated bisphenol-A epoxy oligomers
- Epoxy novolac (meth)acrylate oligomers
- Acrylated epoxidised oils and cycloaliphatic hybrid epoxy acrylates
- Modified speciality epoxy acrylate oligomers : Alkoxysilane modified epoxy acrylate oligomer - Polydimethylsiloxane epoxy acrylate oligomer - Adipic acid modified methacrylated epoxy resin - Epoxy methacrylate with phenyl phthalazinone backbone
- Applications of epoxy acrylate UV cure coatings (Reinhold S., 2006)
Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11870
in PAINTINDIA > Vol. LXI, N° 7 (07/2011) . - p. 58-64[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 13281 - Périodique Bibliothèque principale Documentaires Disponible Importance of substrate roughness for in-vitro sun protection assessment / Louis Ferrero in IFSCC MAGAZINE, Vol. 9, N° 2 (04-05-06/2006)
[article]
Titre : Importance of substrate roughness for in-vitro sun protection assessment Type de document : texte imprimé Auteurs : Louis Ferrero, Auteur ; Marc Pissavini, Auteur ; Adeline Dehais, Auteur ; Stephanie Marguerie, Auteur ; Leonhard Zastrow, Auteur Année de publication : 2006 Article en page(s) : p. 97-108 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Sunscreen testing' 'In vitro SPF' 'UVA protection' 'Surface roughness' microtopography' 'Irregularfilm geometry' 'UV filters' Index. décimale : 668.5 Parfums et cosmétiques Résumé : The purpose of this study is to demonstrate the influence of plate roughness on well-known absolute or relative UV
spectroscopic indices such as the in vitro SPF, in vitro UVA PF (PPD), UVA/UVB ratio, critical wavelength and SPF/UVA
PF (PPD) ratio. First a roughness index was measured by non-contact surface topography analysis on different
PMMA plates which are available today on the European market. A large difference between maximum and minimum
plate roughness values could be measured ranging from 1.88 μm to 6.76 μm. Then the PMMA plates were grouped
into five different roughness classes. To measure the different spectroscopic indices, the same sunscreen preparation
was applied at the same amount rate (1 mg cm-2) to each of the selected plates. Large differences were noted for
the absolute in vitro indices SPF and UVA PF (PPD), with the SPF varying in one instance from 13.5 to 40.7. On the other
hand, the relative absorbance indices UVA/UVB ratio and critical wavelength showed a small but significant variation
in relation to roughness. The SPF/UVA PF (PPD) ratio index based on direct in vitro values was found to be very
sensitive to roughness variation. However, adjusting the UV absorbance curve to reach equality between the in vitro
SPF and in vivo SPF is a recognized and efficient mathematical process to limit the variation.
All these results can be interpreted using the irregular sunscreen film theory. Mathematical developments can be
achieved by modeling the height distribution with a gamma function.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10847
in IFSCC MAGAZINE > Vol. 9, N° 2 (04-05-06/2006) . - p. 97-108[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008185 - Périodique Bibliothèque principale Documentaires Disponible Bring back the steel ? The growth of plastics in automotive applications / Rose Ann Ryntz in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 1 (01/2006)
[article]
Titre : Bring back the steel ? The growth of plastics in automotive applications Type de document : texte imprimé Auteurs : Rose Ann Ryntz, Auteur Année de publication : 2006 Article en page(s) : p. 3-14 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Flow agents' 'Dynamic mechanical properties' Fluorescence Hardness 'Scratch resistance' 'UV spectroscopy' Photodegradation Polyacrylics Isocyanates 'Melamine-formaldehyde resins' Photostabilizers Polyurethanes Solventborne 'UV, EB radiation cure' Waterborne 'Service life prediction' Weatherability Automotive-OEM High-solids Latex PARP Index. décimale : 667.9 Revêtements et enduits Résumé : The development of plastics has evolved from the use of natural materials to the use of chemically modified natural materials and, finally, to completely man-made molecules. Plastics continue to improve, to afford flexibility, high-impact, and strength. In automotive applications, plastics have increased in utilization to comprise approximately 10% of the total vehicle weight. They offer increased ductility, freedom from corrosion, and increased styling capability. Although plastics have had a remarkable impact on our culture, it is obvious that there is a price to be paid for their use. Plastics are almost too good, as they are durable when processed correctly, but easily damaged when utilized in the incorrect application. Plastics also degrade very slowly, making recycling mandatory. And finally, while plastics consume only 4% of the world's oil production (petroleum is the raw material that is chemically altered to form commercial plastics), their cost hinges on the cost of petroleum. As petroleum prices increase, so too will the cost of plastic. In 2004, the higher price of plastic forced many plastic manufacturers out of business, and forced many automotive suppliers to look into alternative replacements. With publications such as USA Today reporting that current oil reserves will only last 40 years, scientists continue to seek cheaper alternatives to plastic. This article summarizes the history of commercial plastic development, with a focus on utilization of the materials in automotive applications. Damage criteria of plastic components, namely scratch, oxidative degradation, and impact, are discussed in relation to coatings and processing robustness. Environmental regulations, particularly in relation to recycling mandates, are explained. And finally, trends in alternative material development, including bioplastics, films, ceramic coatings, and nano-composites, are formulated. DOI : 10.1007/s11998-006-0002-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-006-0002-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3708
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 3, N° 1 (01/2006) . - p. 3-14[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 003762 - Périodique Bibliothèque principale Documentaires Disponible