Introduction to chemistry of colloids and surfaces. Liophobic and hydrophilic systems. Micro and nanoparticles. Solubility. Detergency. Nano and microstructured systems. Conservation of mural painting. Consolidation by using classical and advanced methodologies (micro and nanoparticles). Degradation generated by polymers. Polymer removal using nanostructured fluids. Practical training on consolidation and cleaning of wall paintings.
M. Matteini, A. Moles, La Chimica nel Restauro - I materiali dell’arte pittorica, Nardini Editore, Firenze 1989.
E. Ciliberto – G. Spoto, Modern Analytical Methods in Art and Archaeology, John Wiley & Sons.
Handouts
Learning Objectives
The course is aimed at giving the fundamental knowledge of the chemistry applied to the cultural heritage conservation and provides the student with the appropriate (and among the most advanced) tools for common conservation treatments.
The course comprises a theoretical introduction to the most advanced methodologies for conservation and practical exercitations.
Prerequisites
Courses recommended: Physcial chemistry of dispersed systems and interfaces; Physical chemistry of nanosystems.
Teaching Methods
Total number of hours for Lectures (hours): 24
Total number of hours for Laboratory-field practice : 24
Type of Assessment
Oral test, and a written technical report on the experiments carried out in the laboratory.
Course program
Introduction to chemistry of colloids and surfaces. Liophobic and hydrophilic systems. Micro and nanoparticles from hydroxide, oxide and carbonate belonging to the I and II group of the periodic table. Solubility of molecules and macromolecules. Detergency. Nano and microstructured systems. Conservation of mural painting. Consolidation by using classical (Ferroni-Dini) and advanced (micro and nanoparticles) methodologies. Degradation generated by polymers. Polymer removal using nanostructured fluids. Applicative examples: 1) mural paintings, 2) Oils and easel paintings, 3) stones conservation 4) paper and wood.
Laboratory experiments.
Practical training on consolidation and cleaning of wall paintings. In particular: preparation of a fresco painting. Degradation of the fresco by sulfation. Desulfation by using the Ferroni-Dini method. Consolidation using nanoparticles. Coating of a fresco with a polymer (paraloid). Paraloid removal with microemulsions. Preparation of nanoparticles and microemulsions used in the previous experiments.