Alcoholic nanolime dispersion obtained by the insolubilisation-precipitation method and its application for the deacidification of ancient paper

Bastone, Stella; Martino, Delia Chillura; Renda, Vincenzo; Saladino, Maria Luisa; Poggi, Giovanna; Caponetti, Eugenio

doi:10.1016/j.colsurfa.2016.10.049

Cited by 32 publications

(21 citation statements)

References 40 publications

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“…In 2017, Bastone et al. reported the application of an insolubilization–precipitation method upon the formation of nanolime after the addition of 2‐propanol to an aqueous solution of calcium hydroxide at the solubility limit . The kinetic stability increases as the alcohol content increases.…”

Section: Alkaline Earth Metal Hydroxide Np Dispersionsmentioning

confidence: 99%

Inorganic Nanomaterials for Restoration of Cultural Heritage: Synthesis Approaches towards Nanoconsolidants for Stone and Wall Paintings

et al. 2018

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The synthesis of inorganic nanostructured materials for the consolidation of stone and wall paintings is reviewed. To begin, a description of the methods most commonly used to prepare nanoconsolidants is provided, particularly in the frame of colloid chemistry. Some concepts of the carbonation mechanism as well as the transport properties of some of these materials are addressed. An overview of the synthesis methods together with some of the application particularities of the distinct consolidants are presented thereafter. Furthermore, the requisites for efficient consolidants and some drawbacks of the nanoconsolidants are discussed.

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Section: Alkaline Earth Metal Hydroxide Np Dispersionsmentioning

confidence: 99%

Inorganic Nanomaterials for Restoration of Cultural Heritage: Synthesis Approaches towards Nanoconsolidants for Stone and Wall Paintings

et al. 2018

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“…Questo metodo è stato impiegato con successo sul legno archeologico (Giorgi, Chelazzi, Baglioni 2005;Chelazzi, Giorgi, Baglioni 2006a, 2006bGiorgi et al 2006;Poggi et al 2016), sul legno degli somieri e delle casse armoniche degli organi (Giorgi et al 2009) e su svariate tipologie di carta e tela (Giorgi et al 2002;Poggi et al 2010;Poggi, Baglioni, Giorgi 2011;Coccolini et al 2011;Poggi et al 2014;Poggi et al 2016). Il metodo è stato apprezzato dalla comunità scientifica che si occupa della salvaguardia di opere d'arte a base cellulosica (Ball 2002) e svariati gruppi di ricerca hanno avuto modo di testarne l'efficacia su carta e tela (Sequeira, Casanova, Cabrita 2006;Stefanis, Panayiotou 2007Bastone et al 2017). Prima di procedere oltre, occorrerà introdurre brevemente il termine 'dispersione', che ad alcuni potrà risultare poco familiare.…”

Section: Poggi Et Al La Chimica Dei Nanocomposti 289unclassified

La chimica dei nanocomposti e la loro applicazione al restauro dei manoscritti

Poggi

Bonelli

Giorgi

et al. 2018

Dalla Tutela Al Restauro Del Patrimonio Librario E Archivistico

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Cellulose-based artifacts are susceptible to fast degradation due to the presence of detrimental components and to the action of environmental pollutants. As a result, the acidity of pristine material increases, promoting the acid-catalysed depolymerisation of cellulose that alters the mechanical properties of paper. In this paper, the use of innovative dispersions of alkaline earth metal hydroxide nanoparticles will be discussed as a method of counteracting the degradation of paper. The application of the most recent formulations of nanoparticles dispersions for the deacidification of artworks will be highlighted. Finally, the usage of innovative gel formulations for the cleaning of cellulose-based artworks will be discussed. Keywords Nanotechnology. Deacidification. Cleaning. Cellulose. Nanoparticles. PremessaUn recente studio ha messo in luce quanto preoccupante, se non drammatica, sia la situazione in cui versa il patrimonio librario e archivistico mondiale: un terzo degli oggetti, infatti, si trova in condizioni tali da richiedere un intervento conservativo immediato, pena la perdita completa della loro fruibilità. Un ulteriore terzo raggiungerà tale stato in meno di cento anni. Appare, dunque, chiaro che la preservazione del patrimonio librario debba essere una priorità nel campo della conservazione dei beni culturali e che maggiori sforzi debbano essere profusi nella ricerca di soluzioni efficaci a tale scopo.I materiali a base cellulosica sono soggetti all'azione concomitante di idrolisi acida e ossidazione che determinano in essi i noti fenomeni di corrosione e ingiallimento. Più nello specifico, le sostanze acide presenti nella carta catalizzano la depolimerizzazione della cellulosa, con conseguente perdita delle proprietà meccaniche originali del materiale. Al fine

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“…Over the years, alkaline nanoparticles have been successfully used on waterlogged wood [37][38][39], on wood from organ pipes [40], and on paper and canvas [35,36,[41][42][43]. The use of alkaline nanoparticles underwent extensive assessment with positive results [28,29,[44][45][46][47]. Research efforts have continued to increase applicability of such particles with, for instance, the use of apolar solvents [48] which allows for a safer intervention even on creased and folder paper.…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials for Combined Stabilisation and Deacidification of Cellulosic Materials—The Case of Iron-Tannate Dyed Cotton

et al. 2020

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The conservation of textiles is a challenge due to the often fast degradation that results from the acidity combined with a complex structure that requires remediation actions to be conducted at several length scales. Nanomaterials have lately been used for various purposes in the conservation of cultural heritage. The advantage with these materials is their high efficiency combined with a great control. Here, we provide an overview of the latest developments in terms of nanomaterials-based alternatives, namely inorganic nanoparticles and nanocellulose, to conventional methods for the strengthening and deacidification of cellulose-based materials. Then, using the case of iron-tannate dyed cotton, we show that conservation can only be addressed if the mechanical strengthening is preceded by a deacidification step. We used CaCO3 nanoparticles to neutralize the acidity, while the stabilisation was addressed by a combination of nanocellulose, and silica nanoparticles, to truly tackle the complexity of the hierarchical nature of cotton textiles. Silica nanoparticles enabled strengthening at the fibre scale by covering the fibre surface, while the nanocellulose acted at bigger length scales. The evaluation of the applied treatments, before and after an accelerated ageing, was assessed by tensile testing, the fibre structure by SEM and the apparent colour changes by colourimetric measurements.

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Alcoholic nanolime dispersion obtained by the insolubilisation-precipitation method and its application for the deacidification of ancient paper

Cited by 32 publications

References 40 publications

Inorganic Nanomaterials for Restoration of Cultural Heritage: Synthesis Approaches towards Nanoconsolidants for Stone and Wall Paintings

Inorganic Nanomaterials for Restoration of Cultural Heritage: Synthesis Approaches towards Nanoconsolidants for Stone and Wall Paintings

La chimica dei nanocomposti e la loro applicazione al restauro dei manoscritti

Nanomaterials for Combined Stabilisation and Deacidification of Cellulosic Materials—The Case of Iron-Tannate Dyed Cotton

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