6533b857fe1ef96bd12b3baf
RESEARCH PRODUCT
Durability of biodegradable polymers for the conservation of cultural heritage
Vincenzo TitoneLuigi BottaBartolomeo MegnaMarco MorrealeMaria Chiara MistrettaFrancesco Paolo La Mantiasubject
Materials scienceTransparency (market)Liquid waterMaterials Science (miscellaneous)02 engineering and technologyConservationmechanical properties010402 general chemistrylcsh:Technology01 natural sciencesDurabilityPermeabilityBiodegradable polymerSurface roughnesschemistry.chemical_classificationPolymer sciencelcsh:TPolymer021001 nanoscience & nanotechnologyBiodegradable polymerDurability0104 chemical sciencesCultural heritageSettore ING-IND/22 - Scienza E Tecnologia Dei Materialichemistrybiodegradable polymersCultural heritage0210 nano-technologyMechanical propertiedescription
The use of polymers for conservation of cultural heritage is related to the possibility to slow down or stop natural deterioration which, in many cases, corresponds to stopping the entrance of liquid water and to favour spontaneous water vapour removal. Unfortunately, hydrophobicity is generally favoured by surface roughness and thus competitive with transparency. It is therefore important to find an optimal balance hydrophobicity, transparency and durability (especially to photooxidation). However, polymers typically used for applications in this field come from non-renewable resources and are not biodegradable. In this work, the mechanical, structural and optical properties of PLA, PBAT and a PBAT/PLA blends, as well as surface properties and water vapour permeability, were investigated before and after exposure to UV irradiation, in order to evaluate their durability and suitability for conservation of cultural heritage.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-06-28 |