6533b822fe1ef96bd127d87f
RESEARCH PRODUCT
Halloysite Nanotubes: Interfacial Properties and Applications in Cultural Heritage
Giuseppe LazzaraStefana MiliotoGiuseppe Cavallarosubject
Materials scienceBiocompatibilityNanotechnology02 engineering and technologyengineering.material010402 general chemistry01 natural sciencesHalloysiteMicelleInvited Feature ArticleSettore CHIM/12 - Chimica Dell'Ambiente E Dei Beni Culturalichemistry.chemical_compoundAdsorptionElectrochemistryGeneral Materials ScienceCelluloseSpectroscopyHalloysiteSurfaces and Interfaces021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesCultural heritagechemistrySolubilizationengineering0210 nano-technologyFire retardantdescription
The peculiar surfaces of halloysite nanotubes and their biocompatibility are attracting the interest of researchers based on the wide range of attainable applications. The large aspect ratio of this nanotubular material ensures promising properties as a reinforcing agent in polymeric matrixes, such as cellulose and its derivatives, that entail strengthening due to, for instance, aging-induced degradation. The halloysite cavity has a suitable size for hosting a large variety of active species such as deacidifying (calcium hydroxide) and flame retardant agents (fluorinated surfactants) for a controlled and sustained release relevant to the conservation of cultural heritage. Additionally, anionic surfactants can be selectively adsorbed at the inner surface generating inorganic micelles able to solubilize hydrophobic species in a controlled cleaning protocol. We briefly discuss how the natural halloysite nanotubes can be supportive in various conservation processes of cultural heritage and present an outlook for future perspectives.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-03-01 |