A NEW WAY IN SYNTHESIZING MAGNETIC NANO GEL FOR CLEANING AN EGYPTIAN COPTIC FRESCO PAINTING

Authors

  • Kholod K. Salama National Museum of Egyptian Civilization, Cairo, Egypt
  • Mona F. Ali Conservation Department, Faculty οf Archaeology, Cairo University, Giza, Egypt
  • Said M. El-Sheikh Nano- Structured Materials and Nanotechnology Division, Advanced Materials Department Central Metallurgical Research & Development (CMRDI(, Helwan, Egypt
  • Amr A. Nada Egyptian Petroleum Research Institute, Cairo, Egypt.

Keywords:

Nano gel, Magnetic nano particles, Magnetic nanogel, Cleaning, Fresco, Microemulsion

Abstract

Cleaning artworks is a very difficult process as the usage of pure organic solvents increases the toxicity and environmental impact of the cleaning techniques. Magnetic gels are very promising materials for cleaning movable and immovable artwork surfaces. The synthesis of a well-known magnetic nanoparticle gel was initiated by esterifying polyethylene glycol with anhydride concurrently. The new magnetic gel, made by cross-linking magnetic nanoparticles of CoFe 2 O 4 into a copolymer based network of 3-octadecyl -1-vinyl imidazolium bromide (C 18 VIBr) and N,N′-Methylenebis acrylamide, was used in cleaning Coptic fresco painting models. The Fourier transform infrared spectroscopy (FTIR), Scanning electron microscope, polarized microscope and the Optical microscope were used to monitor the success of synthesis of the new gel with the magnetic nanoparticles in cleaning the artwork surfaces.

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Published

2023-07-28

Issue

Vol. 17 No. 1 (2017)

Section

Articles