Download Nanotechnologies in the Conservation of Cultural Heritage: A by Piero Baglioni PDF
By Piero Baglioni
This publication provides novel functions of nanotechnology for the maintenance of inventive and historic artifacts. It explains the clinical rules in the back of various nanomaterials and discusses their functions to forms of universal movable and glued creative substrates. It starts off with an outline of the nano-tools constructed over the past 3 many years, equivalent to dispersions of nanoparticles, micellar recommendations, microemulsions and gels. in comparison to conventional equipment, those new instruments get pleasure from significantly much less impression on either the operators and the surroundings. each one bankruptcy is devoted to a selected kind of cultural historical past fabric (wall and easel work, stone, paper, canvas and wooden) beginning with the most degradation paths and discussing protocols for the applying of leading edge nanomaterials-based instruments for cleansing, consolidation, or deacidification, which characterize nearly all of the case experiences encountered in recovery amenities, workshops and ateliers. The e-book presents step by step descriptions that are supposed to aid conservators within the software of those novel fabrics and strategies. the purpose of the publication is to equip end-users and conservators with crucial info and data at the availability and applicability of alternative nano-materials and dispersed platforms. whereas the book’s concentration is at the useful elements, readers also will locate references to the correct complex colloid and fabric technological know-how literature.
Main viewers: specialist conservators, restorers and technical employees at conservation institutes and museums, scholars at conservation and recovery colleges, and scientists who're new to the sphere of conservation of inventive and old artifacts.
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Additional info for Nanotechnologies in the Conservation of Cultural Heritage: A compendium of materials and techniques
Example text
2007) studied particle-modified silica consolidants (PMC) filled with titania, alumina and silica nanoparticles. Results indicated that PMC offer improved properties with respect to unfilled ethyl silicate consolidant, especially for what concerns protection from salt crystallization and reduced risk of cracking during thermal cycles. Alternatively, research work has been carried out in the last 10–15 years on the formulation and use of nanoparticles of calcium hydroxide in alcohols, as discussed for wall paintings.
Reprinted with permission from Salvadori and Dei 2001. Copyright 2001 American Chemical Society) surface relative to nucleation of separate particles”. Moreover, the particles face-toface sticking is inhibited due to absorption of 2-propanol. 4). It is interesting to notice that upon drying, the particles tend to pile along the basal face (the {001} plane) as evidenced by XRD. In this way, particles form layers within the porous matrix of the substrate, and then undergo carbonation forming the CaCO3 network that provides consolidation.
2). In this case, calcium hydroxide nanosols are synthesized directly from alcohol solution. The obtained particles have dimensions of 50–250 nm, and are dispersed in short chain alcohols such as ethanol, 1-propanol and 2-propanol, with a concentration range of 5–25 g/L. D’Armada and Hirst (2012) reported the use of this product for the consolidation of historically important medieval wall paintings at All Saints’ Church (Little Kimble, Buckingamshire). In particular, the paintings were quite stable, but the walls exhibited many later plaster repairs that were in bad conditions and affected by efflorescence.