Methyl–modified hybrid organic-inorganic coatings for the conservation of copper

Kiele, Erika; Lukseniene, Janina; Grigucevičienė, Asta; Selskis, A.; Senvaitienė, Jūratė; Ramanauskas, R.; Raudonis, Rimantas; Kareiva, Aivaras

doi:10.1016/j.culher.2013.06.002

Cited by 30 publications

(20 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An in-depth description of sol-gel coating is given in Section 3 on historical glass, as it has been largely used on vitreous materials. Here, we mention the work of Kiele et al [51], in which the authors introduced methyl groups as silica modifiers for improving the hydrophobicity of the coating. In this case, the coating is prepared with tetraethylorthosilicate (TEOS) as a precursor of nanosilica films, a mix of SiO 2 sol solution with trimethylchlorosilane (TMCS) and hexamethyldisilozane (HMDS).…”

Section: Nano-compositesmentioning

confidence: 99%

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

et al. 2020

View full text Add to dashboard Cite

In the last decades, the interest in the development of protective coatings for movable and immovable Cultural Heritage (CH) assets has decidedly increased. This has been mainly prompted by the raising consciousness on preservation requirements for cultural artefacts and monuments, which has consequently determined the development of new protective products. From acrylic resins used at the end of the last century to the up-to-date biomaterials and nanoparticles employed nowadays, the research has made a giant step forward. This article reviews the progresses, the technical challenges, and the most recent advances in protective coatings for archaeological metal, glass, and stone artefacts. It aims at offering a comprehensive and critical overview of the progressions in conservation science and displaying how research has optimized polymers in order to solve deterioration problems. Attention is given to recently developed materials, hybrid coatings, and corrosion inhibitors. This work seeks to provide a reference point for future research and to offer a wide-ranging introduction on the newly available material technologies to restorers and conservators.

show abstract

Section: Nano-compositesmentioning

confidence: 99%

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Although OM can effectively avoid the preprocessing procedure which may cause irreversibly damage to Treated with 8% HMDS before and after photochemical aging; c, d treated with 10% TMCS before and after photochemical aging [66], copyright (2014) Elsevier samples, such as metal or carbon coatings, they can only detect the morphology of samples. The electron microscopes coupled with energy-disperse X-ray spectroscopy (EDX) are both imaging and chemical techniques.…”

Section: Electron Microscopy and Energy Dispersion X Ray (Edx) Analysismentioning

confidence: 99%

“…Except for the mentioned applications, how to protect and restore the metal structure of ancient building remains one of the most complex problems. In Kiele and co-workers' study, [66], the changes of surface morphologies of both uncoated and coated samples were studied by AFM. They used sol-gel technique to prepare methylmodified silica coatings to protect copper structures.…”

Section: Introductionmentioning

confidence: 99%

Recent progress in instrumental techniques for architectural heritage materials

et al. 2019

View full text Add to dashboard Cite

Both conservation and intervention methods must be compatible with each other and appropriate for the original building materials. Therefore, the characterization of historic building materials is indispensable for investigating chemical composition, micro-structure and morphological features to study the current condition, environmental influence and change mechanism due to natural aging or man-made decay processes. Given the great variety of chemicals which can be analyzed, complex problems related to architectural heritage materials are investigated via optimized methodologies. Among the existing techniques, optical microscopy (OM) is an inexpensive and dominating tool to obtain preliminary information on complex samples. Atomic force microscopy (AFM) can provide real three-dimensional topographies showing sample surface properties. Electron microscopes combined with energy dispersion X-ray analysis (EM-EDX) are the instruments specifically developed to acquire images of target materials at high magnification. Infrared and Raman spectroscopies are frequently used to characterize inorganic and organic compounds. Thermal analysis can rapidly and accurately measure changes in crystalline structure, dehydration and decomposition. X-ray based technologies have a wide range of applications as follows. X-ray fluorescence (XRF) is one of the most frequently used techniques for elemental analysis. X-ray diffraction (XRD) is a fast and inexpensive technique for the characterization of man-made and natural materials. X-ray photoelectron spectroscopy (XPS) is applied to quantify the valence and electronic levels of specific elements. X-ray absorption spectroscopy (XAS) is a powerful technique for detecting the electronic structure of matter. UV-visible (UV-vis) spectroscopy is also of great importance in architectural heritage, which can reveal different physicochemical mechanisms causing color. Laserinduced breakdown spectroscopy (LIBS) can effectively eliminate the pollution on the surface and detect the internal elements of the target material. Ion beam analysis can quantify trace elements with high sensitivity. Mass-based techniques are mainly applied to identify unknown organic substances at the molecular level. This review describes some classical applications of individual techniques and provides scientific support for scientists and engineers to make decisions in the context of architectural heritage.

show abstract

“…This technique allows discerning the corrosion mechanisms that occur through the film, as well as the resistance that it presents. This is why it has proven to be an effective method for comparing coatings performance [23][24][25]. Time series can be analyzed by statistical and spectral methods, to estimate characteristics that generally describe the behavior of the coated metal [26].…”

Section: Introductionmentioning

confidence: 99%

Assessing of New Coatings for Iron Artifacts Conservation by Recurrence Plots Analysis

2018

View full text Add to dashboard Cite

Cast iron has stood for centuries of invention. It is a very versatile and durable material. Coating systems are a low-maintenance protection method. The purpose of this research is to increase the Paraloid coating’s resistance when applied to iron in high humidity atmospheres, with the addition of caffeine (1,3,7-dimethylxanthine) and nicotine (S)-3-(1-methylpyrrolidin-2-yl) pyridine as corrosion inhibitors; the resistance of protection versus exposure time will be evaluated by using electrochemical noise. A statistical analysis of the electrochemical noise signals was carried out. Recurrence plots were used as a powerful tool in the analysis to complement the data obtained and they predicted the evaluation of coatings behaviors performance versus time. The outcomes show that the addition of inhibitors increases and improves the performance as a temporary protection of Paraloid and that protection in high relative humidity was improved. Recurrence plots and parameter quantification show the variances in the surface corrosion dynamics.

show abstract

Methyl–modified hybrid organic-inorganic coatings for the conservation of copper

Cited by 30 publications

References 46 publications

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

Recent progress in instrumental techniques for architectural heritage materials

Assessing of New Coatings for Iron Artifacts Conservation by Recurrence Plots Analysis

Contact Info

Product

Resources

About