Coating challenges in cultural heritage conservation / Stéphanie A. Cretté in COATINGS TECH, Vol. 9, N° 9 (09/2012)  

[article]  inCOATINGS TECH > Vol. 9, N° 9 (09/2012) . - p. 48-60 Titre : Coating challenges in cultural heritage conservation Type de document : texte imprimé Auteurs : Stéphanie A. Cretté, Auteur ; Liisa M. E. Näsänen, Auteur Année de publication : 2012 Article en page(s) : p. 48-60 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antiquités (objets anciens) -- Conservation et restauration Métaux -- Revêtements protecteurs Monuments historiques -- Conservation et restauration Revêtements Index. décimale : 667.9 Revêtements et enduits Résumé : In 2008, a project between the National Park Service and the Warrent Lasch Conservation Center (WLCC) of Clemson University Restoration Institute was initiated to develop a protocol for conservation treatment on a selected set of ordnance and metal architectural elements at South Carolina's Fort Sumter National Monument, to include Fort Moultrie. One of the key purposes of this research, and a factor that sets this project apart in the field of conservation, is the ability to provide comparative testing of several removal methods as well as coating products on historic metal substrates. Preliminary testing on coupons and substrates with no historic provenance has been running alongside laboratory and on-site testing on actual historic artifacts throughout the complex chronology of the project. The manner in which the project was designed from its inception, as a collaborative research effort, has made this work possible. Continuous, open, and effective communication between the different entities-Federal, State, and private-has been crucial in defining a goal and executing a plan that is achievable and sustainable, while contributing considerably to research and education within the multifaceted field of preservation and stewardship of cultural heritage. Note de contenu : - CONSERVATION AND ETHICS - COATING CONSIDERATIONS - COATINGS HISTORICALLY USED IN CONSERVATION - DETERIORATION/DEGRADATION OF POLYMERS - COATING PRE-REMOVAL CONSIDERATIONS - REVERSAL/REMOVAL TECHNIQUES : Mechanical or hand tool cleaning - Abrasive blasting - Dry ice and sodium bicarbonate - Chemical stripping - Water jetting - Laser cleaning (ablation) - Superheated water and web abrasive systems - PRE-COATING APPLICATION CONSIDERATIONS - CASE STUDY : FORT MOULTRIES AND FORT SUMTER NATIONAL MONUMENT : National park service mission and goal - Description of project - Fort moultrie, Sullivan's Island, SC - Fort Sumter, Charleston SC - Assessment, identification, and analysis - Decision-making process - Prioritization process - Repair versus replace - Coating solutions available ; comparison of coating systems En ligne : https://drive.google.com/file/d/10bObad57SdsQjeDesYLp2KB8Qqszlf45/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16152 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14222	-	Périodique	Bibliothèque principale	Documentaires	Disponible

High barrier sustainable co-polymerized coatings / Lokendra Pal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 4 (12/2008)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 5, N° 4 (12/2008) . - p. 479-489 Titre : High barrier sustainable co-polymerized coatings Type de document : texte imprimé Auteurs : Lokendra Pal, Auteur ; Margaret K. Joyce, Auteur ; Paul D. Fleming, Auteur ; Stéphanie A. Cretté, Auteur ; Charles Ruffner, Auteur Année de publication : 2008 Article en page(s) : p. 479-489 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Argile Cartonnages Copolymère styrène butadiène styrène Gaz Matériaux -- Propriétés barrières Perméabilité Polyacryliques Polymérisation Revêtements protecteurs Vapeur d'eau Index. décimale : 667.9 Revêtements et enduits Résumé : The goal of this project was to determine the most promising co-polymerized (COP) coating for paperboard for protection against gas and water vapor transmission. The driving force for this was to create a coating that will significantly slow the permeation of water and water vapor through the paperboard, while retaining its mechanical properties. This was accomplished by creating high barrier co-polymerized coatings. This study focuses on the use of modified high shape factor engineered (HSFE) clays. In this study, acrylic co-monomers have been polymerized in the presence of three different, finely dispersed HSFE clays, to prepare the co-polymerized coatings. The wet coating structure was studied using Brookfield and Hercules Hi-Shear viscometers, water retention, and dispersion stability. The dry coating structure was studied using WYKO White Light Interferometry and burn out tests. The cylindrical laboratory coater (CLC)-coated samples were then tested for gas and water vapor permeability. Additionally, the optical and surface properties were determined. The CLC-coated board samples showed almost zero gas permeability and a significant reduction in water vapor transmission rate (water vapor permeability). The water vapor permeability was reduced up to 90% reflecting a one order of magnitude decrease in comparison to a commercially coated sample. The co-polymerized coating with high shape factor and thinner platelet clay displayed the lowest water vapor permeability and the best optical and surface properties, thereby making it the most promising barrier coating for solid bleached sulfate paperboard. DOI : 10.1007/s11998-008-9101-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9101-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3475 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
010911	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)