Idioma:

Chelators confined into 80pvac-borax highly viscous dispersions for the removal of gypsum degradation layers

Berlangieri, Chiara ; Andrina, Elisabetta ; Matarrese, Caterina ; Carretti, Emiliano ; Traversi, Rita ; Severi, Mirko ; Chelazzi, David ; Dei, Luigi ; Baglioni, Piero

Pure and applied chemistry, 2017-01, Vol.89 (1), p.97-109 [Periódico revisado por pares]

Berlin: De Gruyter

Sem texto completo

Citações Citado por

Enviar para

Título:
Chelators confined into 80pvac-borax highly viscous dispersions for the removal of gypsum degradation layers
Autor: Berlangieri, Chiara ; Andrina, Elisabetta ; Matarrese, Caterina ; Carretti, Emiliano ; Traversi, Rita ; Severi, Mirko ; Chelazzi, David ; Dei, Luigi ; Baglioni, Piero
Assuntos: Atomic beam spectroscopy ; Borax ; Calcium sulfate ; chelates ; Chelation ; Cultural heritage ; Cultural resources ; Degradation ; desulphatisation ; Dispersions ; Emission analysis ; Fourier transforms ; Gypsum ; gypsum layers ; Inductively coupled plasma ; Infrared analysis ; Infrared imaging ; Infrared spectroscopy ; POC-16 ; poly vinyl alcohol-borax ; Pretreatment ; Rheological properties ; Spectroscopy ; Spectrum analysis ; Two dimensional analysis ; Vinyl acetate ; Viscoelasticity
É parte de: Pure and applied chemistry, 2017-01, Vol.89 (1), p.97-109
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: In this paper a new method for the removal of gypsum degradation layers from carbonatic matrices in cultural heritage conservation, using aqueous Highly Viscous Polymeric Dispersions (HVPDs) based on partially hydrolyzed poly(vinyl acetate) and borax, embedded with chelators, is presented. Due to their interesting viscoelasticity, these systems guarantee a good adhesion to the treated surface and easiness of removal in one step, minimizing the residues. Thus, they can potentially overcome the “residue question” limit associated to traditional methodologies that use thickened solutions of chelators. Here the rheological properties of HVPDs containing different amounts of selected chelating agents are explored and their efficacy in the extraction of gypsum is verified through cleaning tests onto artificially sulfated travertine tiles. The homogeneous removal of gypsum across the surface was checked non-invasively via Fourier Transform Infrared Spectroscopy (FTIR) 2D Imaging. An analytical protocol for the pre-treatment and the analysis of HVPD samples by means of Ion Cromatography (IC) and Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) was set up and the approximate amount of calcium sulfate removed was determined.
Editor: Berlin: De Gruyter
Idioma: Inglês;Francês;Alemão

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Chelators confined into 80pvac-borax highly viscous dispersions for the removal of gypsum degradation layers

Berlangieri, Chiara ; Andrina, Elisabetta ; Matarrese, Caterina ; Carretti, Emiliano ; Traversi, Rita ; Severi, Mirko ; Chelazzi, David ; Dei, Luigi ; Baglioni, Piero

Berlin: De Gruyter

Buscando em bases de dados remotas. Favor aguardar.