Natural compounds from certain timber trees are highly valued and recommended to protect wood and wood products against mold fungi. This study highlighted the use of some natural extracts and Paraloid B72 against the growth of two mold fungi, namely Alternaria tenuissima and Fusarium culmorum. From the in vitro experiment, the methanol extracts of Callistemon viminalis bark were effective again...

In this work at the first step calcium hydroxide nano-particles were synthesized via sono-chemical method at room temperature. At the second step aminated multi-walled carbon nano-tubes was prepared via chemical modification of surfaces of CNT. Finally modified-MWCNT and Ca(OH)2 were added to paraloid matrix by aid of ultrasonic irradiation. Paraloid-modified-MWCNT-Ca(OH)2...

Paraloid-Mg(OH)2 nanocomposites were synthesized via sonochemical method. Nanostructures were characterized by XRD and SEM. Thermal stability behavior of paraloid filled with magnesium hydroxide was investigated by thermogravimetric analysis (TGA). The influence of Mg(OH)2 nanostructures on the flame retardancy of the paraloid matrix was studied using UL-94 analysis. Our r...

in this work at the first step calcium hydroxide nano-particles were synthesized via sono-chemical method at room temperature. at the second step aminated multi-walled carbon nano-tubes was prepared via chemical modification of surfaces of cnt. finally modified-mwcnt and ca(oh)2 were added to paraloid matrix by aid of ultrasonic irradiation. paraloid-modified-mwcnt-ca(oh)2 nanocomposite was use...

paraloid-mg(oh)2 nanocomposites were synthesized via sonochemical method. nanostructures were characterized by xrd and sem. thermal stability behavior of paraloid filled with magnesium hydroxide was investigated by thermogravimetric analysis (tga). the influence of mg(oh)2 nanostructures on the flame retardancy of the paraloid matrix was studied using ul-94 analysis. our results show that the m...

Acrylic polymers have been widely used in the field of conservation since the 1930’s. However, it is becoming increasingly apparent that under certain conditions, these synthetic polymers are subject to degradation through the activities of microbiological organisms. The biodeterioration of synthetic polymers is of particular concern to conservators when used for the long-term protection of arc...

This article focuses on study of a relation between physical-mineralogical properties sandstone used in Ptolemaic temples Upper Egypt and its resistance deterioration factors affecting it. In the present study, samples were collected from four sites; namely Dendera, Esna, Edfu Kom Ombo which are located Egypt. Polarized light microscope (PLM), Scanning Electron Microscope (SEM), X-Ray diffracti...

The novelty of the research consists in fact that decayed wood was taken from an old icon, on which several consolidation treatments were applied, and improvement indices (by Anobiidae insects) also determined. This investigated two types most used consolidant (Paraloid B72 10% Regalrez 1126 25%) solubilized three solvents, to improve properties lime samples coming cultural heritage objects pre...

Electrochemical techniques are mainly known in the field of cultural heritage conservation as a tool for the elimination of corrosion layers or the removal of chlorides. However, these techniques are also a valuable tool for assessing the anti-corrosive efficiency of protective coatings. The aim of this study was to evaluate the performance of different coatings for their use in metallic herita...

Calcareous stones such as Lecce stones have a high porosity which results in a readily uptake of rainwater. Due to the atmospheric pollutants dissolved in the water these stones, used in a lot of historical buildings, are constantly under attack which leads to a decay of the stone. Different kind of organic hydrophobic products such as Paraloid B72 and fluorinated rubber are often applied as pr...