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Re-Assembly of Archaeological Massive Limestones Using Epoxy Resin Modified with Nanomaterials—Part 1: Experimental

Green and Sustainable Chemistry 2020年第3期10卷 24-38页

作者： Mohammad A. Aldosari Sawsan S. Darwish Mahmoud A. Adam nagib A. elmarzugi Sayed M. Ahmed National Nanotechnology Research Center King Abdulalziz City for Science and Technology (KACST) Riyadh KSA Department of Conservation Faculty of Archaeology Cairo University Giza Egypt Faculty of Pharmacy Tripoli University and National Nanotechnology Project Biotechnology Research Center LARST Tripoli Libya Ministry of Antiquities The Grand Egyptian Museum Giza Egypt

Massive limestones were used in construction of ancient Egyptian tombs, temples, obelisks and other sculptures. These stones are always exposed to physico-mechanical deterioration and destructive forces, leading to partial or total collapse. The task of reassembling this type of artifacts represents a big challenge for the conservators. Recently, the researchers are turning to new technologies to improve the properties of traditional adhesive materials and techniques used in re-assembly of broken massive stones. The epoxy resins are used extensively in stone conservation and re-assembly of broken stones because of their outstanding mechanical properties. The adding of nanoparticles to polymeric adhesives at low percentages may lead to substantial improvements of their mechanical performances in structural joints and massive objects. The aim of this study is to evaluate the effectiveness of montmorillonite clay, calcium carbonate, and silicon dioxide nanoparticles for enhancing the performances of epoxy adhesives used in re-assembly of archaeological massive limestones. Scanning electron microscopy (SEM) was employed in order to investigate the morphology of the prepared nanocomposites, and the distribution of nanoparticles inside the composites. Artificial aging, tensile, compressive, and elongation strength tests were used to evaluate the efficiency of epoxy-nanocomposites. The results showed that the epoxy-clay nanocomposites exhibited superior tensile, compressive, and elongation strength, in addition to improving the mechanical properties of stone joints.

关键词： Epoxy Resins Nanocomposites Re-Assembly Massive Limestones Mechanical Properties

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Effects of Adding Nanosilica on Performance of Ethylsilicat （TEOS） as Consolidation and Protection Materials for Highly Porous Artistic Stone

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材料科学与工程（中英文A版） 2016年第4期6卷 192-204页

作者： Mohammad A. Al-Dosari Sawsan Darwish Mahmoud Abd El-Hafez nagib elmarzugi Nadia Al-Mouallimi Sayed Mansour Department of Conservation Faculty of Archaeology Cairo University Giza P. O. Box 12613 Egypt Faculty of Pharmacy Tripoli University & National Nanotechnology Project Biotechnology Research Center LARST P. O. Box13100 Tripoli Libya National Nanotechnology Research Center King Abdulalziz City for Science and Technology (KACST) P. O. Box 6086 RiyadhSaudi Arabia Saudi Nano Information Center Jeddah P. O. Box 20718 Saudi Arabia The Grand Egyptian Museum Ministry of Antiquities Cairo P. O. Box 12561 Egypt

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