A study on using of protease for removal of animal glue adhesive in textile conservation

Ahmed, Harby E.; Kolisis, Fragiskos N.

doi:10.1002/app.34053

Cited by 21 publications

(12 citation statements)

References 16 publications

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“…From Figure 9(b), it is clear that pure PMMA has an amorphous nature characterized by an amorphous halo (a large hump) at 2θ = 14.56° with no sharp peak. This shows that it is a glassy material because of the absence of a crystalline peak 2…”

Section: Resultsmentioning

confidence: 93%

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Investigation of the structural, thermal, mechanical, and optical properties of poly(methyl methacrylate) and poly(vinylidene fluoride) blends

Pawde

Deshmukh

2009

J of Applied Polymer Sci

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In this investigation, poly(methyl methacrylate) (PMMA) and poly(vinylidene fluoride) (PVDF) blends (w/w) were prepared in a Brabender (South Hackensack, NJ) plasticorder with a thermoplastic mixing chamber (type W60) preheated at 180 C. These blends were further converted into films by a conventional solution casting method and characterized with Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, mechanical property measurements, impact strength testing, ultraviolet-visible spectroscopy, refractive-index measurements, and contact-angle study. The Fourier transform infrared results indicated that the compatibility between these two systems resulted from hydrogen bonding between the carbonyl group of PMMA and the CH 2 group of PVDF. The thermal analysis showed depressions in the glass-transition temperature, melting temperature, and crystallization temperature. The heat of crystallization increased with an increase in the PVDF content in the blend. An increase in the heat of crystallization meant an increase in the crystallinity. An increase in the cooling rate increased the crystallization rate. The improvement in the mechanical properties of the blend films indicated that the observed behavior was ascribable to a more coherent structure of the blends due to strong specific interactions between PMMA and PVDF chains. The impact strength analysis revealed a substantial increase in the impact strength from 21.64 to 38.52 J/m. Optical absorption spectra suggested the presence of an optical band gap energy that increased with an increase in the PVDF content in the blend. The contact angle against water increased with the PVDF content in the blend film, and this was caused by the hydrophobicity of PVDF due to the CF 2 group of PVDF.

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Section: Resultsmentioning

confidence: 93%

“…Blends also can be commercially rewarding if they improve processability and performance. Other advantages of polymer blending are versatility; simplicity, and inexpensiveness 2. The general morphologies and final blend properties depend not only on the individual properties of blend components but also on their degree of miscibility 3.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the structural, thermal, mechanical, and optical properties of poly(methyl methacrylate) and poly(vinylidene fluoride) blends

Pawde

Deshmukh

2009

J of Applied Polymer Sci

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“…Adding to the identification of the manifestations of damage in the fiber that nobody can see it by the naked eye. A small fiber from different parts of Historical Carpet was taken, then it investigated by using a Quanta 200 ESEM FEG from FEI Scanning Electron Microscope (SEM) [6,7]. X-ray diffraction analysis: X-ray diffraction of fabrics used in order to identify the type of dirt, mordents in fibers, and any crystalline matters in the historical Carpet.…”

Section: Testing and Analysismentioning

confidence: 99%

Conservation Strategies of a Rare Historical Carpet in Cairo University, A case study

Ahmed¹

2018

IJFTTE

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Historical museums and houses contain a large number of historic carpets. Many researchers have pointed out that the original home of carpet makers is central Asia. This historic carpet is made of textile fibers, most notably wool fibers and silk fibers used in the manufacture of carpets. Different kind of natural dyes s and natural fibers were used manufacturing of the historical carpets. Historical carpets are exposed to many deterioration factors that cause damage and decay in fibers and dyes. Deterioration factors such as oscillate relative humidity (RH), changing temperature, effect of light, effect of air pollution which results in weakness in fibers and dye, hardness in fibers, separate parts, loss parts, stain and dust [1] [2] [3-5].

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“…The animal glue is characterized by the properties of different chemical and physical according to the source and methods of preparation. In the manufacture of artifacts and objects, some knowledge exists that the animal glues are more suitable for specific purposes [10][11][12].…”

Section: Degradation Behavior Of Nano-glue Adhesive Due To Historicalmentioning

confidence: 99%

“…Dyed wool fabrics were treated with the animal glue adhesives and Nano animal glue adhesives in 5% concentration according to the standard method of conservation [8][9][10][11].…”

Section: Treatmentsmentioning

confidence: 99%

Degradation Behavior of Nano-Glue Adhesive due to Historical Textiles Conservation Process

Ahmed

Mohamed²,

Saad

et al. 2017

Egypt. J. Chem.

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F RAGILE textiles in museums need to consolidate by natural adhesives such as animal glue due to conservation process. Sometimes the animal glue becomes shrunk, cracked, and rigid after long term. The article is aimed to study using Nano animal glue adhesive in historic textiles conservation field in order to consolidate the fragile textiles. For this, an extensive experimental work was done to study the ageing behavior of Nano animal glue after artificial ageing process. Firstly, Wool fabric dyed with natural dyes such as madder and safflower dye mordanted with different mordents to similarity for the historical textiles. The wool dyed fabrics were coated with animal glue adhesive and nano animal glue adhesive. The treated wool fabrics were aged by accelerated thermal ageing for different time. A comparative study was done in order to characterize changes in properties as well as the physical and chemical degradation of treated wool fabrics before and after thermal ageing. Different type of analysis methods such SEM , FTIR, the colors are given in Commission internationale de l'éclairage (CIE L*a*b*) coordinates and mechanical properties. This article presents interesting results concerning the effect of ageing on characterization of nano glue adhesive furthermore for treated wool fabrics.

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A study on using of protease for removal of animal glue adhesive in textile conservation

Cited by 21 publications

References 16 publications

Investigation of the structural, thermal, mechanical, and optical properties of poly(methyl methacrylate) and poly(vinylidene fluoride) blends

Investigation of the structural, thermal, mechanical, and optical properties of poly(methyl methacrylate) and poly(vinylidene fluoride) blends

Conservation Strategies of a Rare Historical Carpet in Cairo University, A case study

Degradation Behavior of Nano-Glue Adhesive due to Historical Textiles Conservation Process

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