Nanomaterials for Consolidation and Protection of Egyptian Faience Form Matteria, Egypt

Ibrahim, Mohamed Moustafa; Mohamed, Sherif O.; Hefni, Yasser Kamal; Ahmed, Ahmed I.

doi:10.4028/www.scientific.net/jnanor.56.39

Cited by 9 publications

(8 citation statements)

References 21 publications

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“…Improvement of the properties of leather can be made by grafting it with different monomers using the emulsion polymerization technique [12,13]. Latex polymers can also be used as nishing agent to modify different leather properties such as lustering [14], water resistance [15] and quality [16,17]. The present work aims to study the characteristic behaviour and other properties of leather-g-PGMA along with tertiary aminated leather obtained by reacting the former with dibutyl amine.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

Hussein¹,

Alatawi²,

Albalawi³

et al. 2021

Preprint

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Chrome tanned leather was grafted by poly (glycidyl methacrylate) (L-g-PGMA) via emulsion polymerization technique and the grafting yield 26%. Epoxy content of the grafted leather samples was 69.4 mmol/100gm. The obtained L-g-PGMA samples were impregnated in different dibutyl amine solutions using amine/ epoxy molar ratio ranging from 0.5 up to 2.5. The obtained samples were assessed through varying nitrogen analysis, infrared spectroscopy, thermogravemetric analysis (TGA) analysis and scanning electron microscope. It was found that the nitrogen content of the treated leather samples increases by increasing the dibutyl amine concentration up to amine/ epoxy molar ratio of 2 after which it decreases. The water absorption, tensile strength and elongation (%) as well as hardness of the modified leather samples were studied and compared with the unmodified one. The colour strength values of dyed leather samples with acid dye were found to increase by grafting or by increasing the amine/epoxy molar ratio up to a value of 1.0 after which it decreases. On the contrary, the colour strength value of dyed leather sample with reactive dye sharply decreases after grafting with poly (glycidyl methacrylate). Samples grafted with glycidyl methacrylate and treated with dibutylacrylate amine exhibit increased colour strength which is directly related to the nitrogen content of the sample.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

Hussein¹,

Alatawi²,

Albalawi³

et al. 2021

Preprint

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“…The content of barium was measured by an Inductively Coupled Plasma Emission Spectrometer (ICP, LEEMAN LABS INC., Hudson, NH, USA), model pridigy7, wavelength range 165 nm-1100 nm, resolution 0.007 nm, and detection limit 5-100 ppb) to explore the penetration depth of consolidation materials. [20,21] During our study, the CIE ∆L, ∆a, and ∆b color coordinate system was used. The simulated samples were treated with three kinds of reinforcement materials.…”

Section: Penetration Depth Testmentioning

confidence: 99%

Barium Hydroxide Nanoparticle–Phosphoric Acid System for Desalination and Consolidation of Tomb Murals

Yao

Yang²,

Huang

et al. 2022

Crystals

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Tomb murals are an important component of cultural heritage, but the extant majority of burial murals are severely damaged. There are various causes behind the deterioration of tomb murals, among which the detrimental effects of sodium sulfate on murals are some of the most difficult to treat. In the past decades, the application of alkaline earth metal hydroxides (such as Ba(OH)2, Ca(OH)2, and Ma(OH)2) for the conservation and consolidation of murals has become more common. However, there are some problems, such as large particles, poor permeability, and potential for surface whitening. In response to this issue, we investigated a facile method for the synthesis of nano barium hydroxide (N-Ba(OH)2), from which we developed a barium hydroxide nanoparticle–phosphoric acid (N-Ba(OH)2/H3PO4) multisite in situ consolidation system. The results show that N-Ba(OH)2/H3PO4 consolidation material has good permeability and mechanical properties compared with commercial Ba(OH)2 and other common consolidation materials. This material performs very well in both salt resistance and desalination tests, the color difference change is minimal, and the technique is suitable for the practical manipulation of outdoor artifact conservation work. Recently, it has even been used in the desalination and consolidation of tomb murals in Jiangxi, China, the results of which opened a new way of thinking about the long-term conservation of tomb murals.

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“…X-Ray diffraction analysis (XRD) was used to identify the mineralogical composition of the body, the color of glaze and the color change of the Egyptian faience [22]. XRD device with the following operation conditions was used:…”

Section: X-ray Diffractionmentioning

confidence: 99%

“…The XRD result from the sample of the glaze layer that displayed color change, showed the presence of 74.7 % Quartz SiO 2 as a major component, 13.7 % Atacamite and 12.3 % Paratacamite Cu 2 Cl(OH) 3 basic copper chlorides. This caused a change in the blue color of the statuette [10].The color alteration is one of the most identifiable of ancient faience damage [22]. It is known as "Copper chloride cancer that provide a degradation process of Egyptian faience in conjunction with copper-based pigments [33,34].…”

Section: X-ray Diffractionmentioning

confidence: 99%

Deterioration Aspects of the Egyptian Faience Ushabti Statuette of the King Aspelta kept in Atfih Magazine, Egypt

Ibrahim

Hassib

Omar

2022

Advanced Research in Conservation Science

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 The Ushabti statuette of King Aspelta from Atfih, Egypt has great archaeological value due to its material and unusual size.  The identification of the components of the statuette revealed information on raw materials, glazing method, and color materials.  The study is mainly concerned with the characterization of the deterioration aspects of the faience statuette.  The deterioration aspects found are color change, weakness, breaking, glazing detachment and accumulation of dirt and dust.

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Nanomaterials for Consolidation and Protection of Egyptian Faience Form Matteria, Egypt

Cited by 9 publications

References 21 publications

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

WITHDRAWN: Modification of Natural Leather Properties via Grafting Polymerization of Glycidyl Methacrylate Monomer

Barium Hydroxide Nanoparticle–Phosphoric Acid System for Desalination and Consolidation of Tomb Murals

Deterioration Aspects of the Egyptian Faience Ushabti Statuette of the King Aspelta kept in Atfih Magazine, Egypt

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