Consolidation of Vicenza, Arenaria and Istria stones: A comparison between nano-based products and acrylate derivatives

Gheno, Giulia; Badetti, Elena; Brunelli, Andrea; Ganzerla, Renzo; Marcomini, Antonio

doi:10.1016/j.culher.2018.02.013

Cited by 22 publications

(17 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, due to low compatibility and aging of organic materials, these cultural relics are being further damaged. To overcome the disadvantages of organic materials, inorganic materials have been developed because of their high compatibility and long‐term durability . Ca(OH) 2 is a representative inorganic material used in the conservation of cultural heritage .…”

Section: Introductionmentioning

confidence: 99%

“…To overcome the disadvantages of organic materials, inorganic materials have been developed because of their high compatibility and long-term durability. [7,8] Ca(OH) 2 is a representative inorganic material used in the conservation of cultural heritage. [9][10][11][12][13] Compared to bulk particles, nanosized Ca(OH) 2 has good permeability and high reactivity with CO 2 , which can ensure fast carbonation, high carbonation degree, and effective consolidation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tuning the Dimensionality of Nano Ca(OH)₂ with Surfactants for Wall Painting Consolidation

Zhu

Yan

et al. 2019

ChemNanoMat

View full text Add to dashboard Cite

As an effective conservation material for wall paintings, ancient paper, and stone artifacts, nano Ca(OH)2 has been studied for more than two decades. However, the synthesis methods are expensive, complex, time‐consuming, or require considerable energy. To tackle the issue, we report, in this study, a facile, large‐scale, time saving, and economical method for synthesizing nano Ca(OH)2 (∼90 nm) at room temperature. This is achieved by controlling crystal growth of Ca(OH)2 at the (1‾010 ) facet (vertical direction) and (0001) facet (horizontal direction) with simultaneous addition of octyl phenyl polyoxyethylene ether (OPPE) and dimethylformamide (DMF) in the reaction. Density functional theory (DFT) calculations revealed that the crystal dimensionality tuning is caused by attaching OPPE to the (0001) facet and DMF to the (1‾010 ) facet of Ca(OH)2. Experimental results showed that the synthesized nano Ca(OH)2 has higher stability and carbonation degree than commercial Ca(OH)2 and was used for consolidating a 1300‐year‐old tomb painting, which is a very important, precious, and heavily damaged national treasure of China. The results demonstrate that the nano Ca(OH)2 shows excellent penetration into the painting, considerably improves the strength of the painting, and has no side effects on the color, pore distribution, and porosity of the painting. Our work will significantly facilitate the industrial production of nano Ca(OH)2 and its application in cultural heritage conservation.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tuning the Dimensionality of Nano Ca(OH)₂ with Surfactants for Wall Painting Consolidation

Zhu

Yan

et al. 2019

ChemNanoMat

View full text Add to dashboard Cite

show abstract

“…However, the effectiveness does not only depend on the efficacy of the product, but also on other parameters. Some studies are focused on the influence of weather conditions during treatment applications [14,15] or the physical-chemical properties of the stone substrate [16]. A good restoration practice requires previous assays that confirm the best consolidant product in relation to the specific characteristics of the artwork (chemical composition, physical properties, state of deterioration, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…The treatments selected are based in recent advances from the nanotechnology field. It is the case of silica nanoparticles (SiO 2 NPs) which decreases the time necessary to obtain silica gel and avoid the use of hazardous solvents [16], but they have shown some disadvantages, such as the formation of superficial layers [34]. Calcium hydroxide nanoparticles (Ca(OH) 2 NPs) are the other treatment proposed for the consolidation of stones.…”

Section: Introductionmentioning

confidence: 99%

Basic Protocol for On-Site Testing Consolidant Nanoparticles on Stone Cultural Heritage

2019

View full text Add to dashboard Cite

Currently the application of consolidants based on nanoparticles is common practice among restorers. Consolidants should not modify the properties of original materials according to international recommendation, which requires previous studies to decide the optimal option. The selection must be based on empirical results, and not only in the expertise of the restorer, because the consolidant’s effectiveness is influenced by its own properties and other factors such as the characteristics of the artwork (elemental composition, porosity, texture, etc.) and its context (temperature, relative humidity, etc.). Moreover, new protocols must be sustainable and compatible with on-site restoration. A new protocol to test consolidant nanoparticles has been designed and assessed. This is based on easy trials and low-cost techniques—digital microscope, colorimeter, peeling test and ultrasound—that could be employed by restorers in situ. In this paper, different consolidant nanoparticles were tested on stones from two historical quarries. The first treatment was SiO2 nanoparticles, and the second, a new nanocomposite of Ca(OH)2 and ZnO quantum dots that allows us to measure penetration depth easily and discern the treated areas under UV lights. This second treatment was the best option for the studied stones, validating the protocol designed for the choice of consolidants.

show abstract

“…Por otro lado, el tratamiento de consolidación con nanopartículas de sílice se ha estudiado recientemente sobre diferentes sustratos pétreos (Iucolano et al 2019;Pozo-Antonio et al 2019;Gheno et al 2018;Zornoza-Indart et al 2018;Zornoza-Indart et al 2017; Zornoza-Indart y López-Arce 2016). Este producto surge como alternativa al empleo de los productos organosilícicos (silicatos de etilo).…”

unclassified

Influencia del método de aplicación en la consolidación con nanopartículas de sílice (SiO2): arenisca del claustro de la Catedral de Pamplona

Jiménez

Zornoza-Indart

2020

GEC

View full text Add to dashboard Cite

La influencia del método de aplicación en la eficacia consolidante de nanopartículas de SiO2 ha sido evaluada en una arenisca deteriorada proveniente del claustro de la Catedral de Pamplona utilizando los métodos de aplicación más empleados, brocha y espray y, estudiando el método de perforación y goteo. Para ello, se analizaron los cambios en las propiedades físicas del material pétreo tras la aplicación del tratamiento utilizando técnicas no destructivas o microdestructivas (velocidad de propagación de ultrasonidos, test de adhesión superficial, resistencia a la microperforación, comportamiento hídrico y espectrofotometría). Los resultados demuestran que el método de aplicación influye notoriamente en la efectividad del consolidante, dejando de manifiesto que la selección del método de aplicación depende del estado de conservación del material pétreo, la localización de su deterioro (superficial, interno o ambos) y de las propiedades intrínsecas del material que determinan la compatibilidad con el producto, su penetración y por tanto, su eficacia.

show abstract

Consolidation of Vicenza, Arenaria and Istria stones: A comparison between nano-based products and acrylate derivatives

Cited by 22 publications

References 43 publications

Tuning the Dimensionality of Nano Ca(OH)₂ with Surfactants for Wall Painting Consolidation

Tuning the Dimensionality of Nano Ca(OH)₂ with Surfactants for Wall Painting Consolidation

Basic Protocol for On-Site Testing Consolidant Nanoparticles on Stone Cultural Heritage

Influencia del método de aplicación en la consolidación con nanopartículas de sílice (SiO2): arenisca del claustro de la Catedral de Pamplona

Contact Info

Product

Resources

About

Consolidation of Vicenza, Arenaria and Istria stones: A comparison between nano-based products and acrylate derivatives

Cited by 22 publications

References 43 publications

Tuning the Dimensionality of Nano Ca(OH)2 with Surfactants for Wall Painting Consolidation

Tuning the Dimensionality of Nano Ca(OH)2 with Surfactants for Wall Painting Consolidation

Basic Protocol for On-Site Testing Consolidant Nanoparticles on Stone Cultural Heritage

Influencia del método de aplicación en la consolidación con nanopartículas de sílice (SiO2): arenisca del claustro de la Catedral de Pamplona

Contact Info

Product

Resources

About

Tuning the Dimensionality of Nano Ca(OH)₂ with Surfactants for Wall Painting Consolidation

Tuning the Dimensionality of Nano Ca(OH)₂ with Surfactants for Wall Painting Consolidation