Quantitative method for evaluating fingernail induced mar damage of coatings / Jeff Anderson in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 4 (07/2013)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 4 (07/2013) . - p. 579-588 Titre : Quantitative method for evaluating fingernail induced mar damage of coatings Type de document : texte imprimé Auteurs : Jeff Anderson, Auteur ; Matthew Brown, Auteur ; Charles Kan, Auteur ; Nanjundiah Kumar, Auteur ; Vivek Kalihari, Auteur Année de publication : 2013 Article en page(s) : p. 579-588 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Ongles Résistance à l'abrasion Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : A traditional method of coating qualification, known as fingernail mar resistance, historically has been practiced in industry where the back of a fingernail is “flicked” across a coating surface. Any resulting permanent mark from this qualitative analysis is deemed a failure. Lack of quantitative analysis and control over experimental parameters in this type of test limits its utility as an analytical test. Fundamental understanding of this specific type of mar damage is hindered, and research efforts to find unique solutions based on changes in polymer structure are frustrated by the binary response of the test. In an attempt to rectify the situation, a high speed mar tester was developed to mimic and quantify the effects of the fingernail flick test. The work described in this report demonstrates the applicability of this tester to produce similar damage to that of the fingernail test. In addition, a quantitative method enabling differentiation of the degree of mar damage of different coatings is described. Finally, the method is demonstrated by differentiating mar resistance of coatings that show similar qualitative results in fingernail flick testing. Note de contenu : - EXPERIMENTAL PROCEDURES : Stylus - Velocity of stylus - Coating selection and preparation - Surface profile - Image capture - Image analysis - Visual analysis - Dynamic friction - Evaluation of fingernail mar - RESULTS AND DISCUSSION : Surface profile of mar and scratch damage - Visual evaluation DOI : 10.1007/s11998-013-9478-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9478-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19107 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
15460	-	Périodique	Bibliothèque principale	Documentaires	Disponible
15594	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Stuck by lightning / Matthew Brown in ADHESIVE TECHNOLOGY, Vol. 16, N° 3 (09/1999)

[article]  inADHESIVE TECHNOLOGY > Vol. 16, N° 3 (09/1999) . - p. 14-16 Titre : Stuck by lightning : Light-curing epoxies and acrylics are finding their way into a wide spectrum of industries, and offer a number of advantages over traditional systems Type de document : texte imprimé Auteurs : Matthew Brown, Auteur Année de publication : 1999 Article en page(s) : p. 14-16 Langues : Anglais (eng) Catégories : Epoxydes Photoréticulation Polyacryliques Index. décimale : 668.3 Adhésifs et produits semblables Résumé : The curing mechanism of an adhesive often determines its suitability for a particular application. This is especially true for high-volume applications where cycle times are counted in seconds or fractions thereof. Traditional epoxies can require lengthy cure times at elevated temperatures and, whilst cyanoacrylates can offer a fast cure, they do not always offer flexibility, and they require tight humidity control. A range of visible-light-photo-initiated adhesives from Delo, a leading German manufacturer, provides high-speed cure of solvent-free, single-component epoxy- or acrylic-based materials. Iatiobond are light-curing acrylic-based adhesives. Note de contenu : - Photo-initiated adhesives - Cationic curing : Curing method - Applications of ligh-curing acrylics : Advantages of light-curing acrylics - Applications of light-curing epoxies - Physical properties - Fig. 1 : Chain growth of photobond adhesives - Fig. 2 : Wavelengh spectrum from VUV to visible light - Fig. 3 : Chain growth for Katiobond adhesives - Fig. 4 : Schematic diagram for process flow - Fig. 5 : Light-curing acrylate adhesives are becoming popular in medical applications - Fig. 6 : Light-curing epoxies are used to bond the heating element in car mirrors, but also protect the terminals from corrosion and salt spray Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37364 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001984	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)