Structure And Behaviour Of Materials For The Conservation Of Monumental Buildings
Price
Free (open access)
Transaction
Volume
29
Pages
10
Published
1997
Size
887 kb
Paper DOI
10.2495/STR970271
Copyright
WIT Press
Author(s)
F. Piacenti, M. Camaiti & G.R. Cantrell
Abstract
Water repellence, aggregating properties and permeability to C^, ^ and C(>2 of perfluoropolyetheric amides, a fluorinated elastomer and an acrylic copolymer were determined. All polymeric materials had a good protective efficacy but very different permeabilities to the gases examined. A selective permeability of several polymers to various penetrants has been found. The fluorinated elastomer displays a favourable behaviour in terms of water repellence, aggregating properties and permeability to carbon dioxide much lower than the one to C^ and N> 1 Introduction Monumental buildings in stone exposed to the atmospheric agents do deteriorate now more rapidly than they used to in the past. The "usual" disaggregating influence of temperature fl
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