Chemico-Physical Methods for Conservation and Restoration of Cultural Heritage
A.Y. 2019/2020
Learning objectives
Description of the material supports of the information: solid state, optical, magnetic and magneto-optical. Chemical and physical characterization and technical peculiarities of CD, DVD and Blue Ray Disc. Working principle of the optial sensor and description of the physical and informatics masterisation process. Investigation methods to characterize polymer and dye component as well as of the reflecting layer of the optical supports.
Temperature, humidity, mechanical and UV radiation stress tests and evaluation of the expected shelf life of the supports.
Conservation criteria and main restoration techniques
Temperature, humidity, mechanical and UV radiation stress tests and evaluation of the expected shelf life of the supports.
Conservation criteria and main restoration techniques
Expected learning outcomes
At the end of the course acquires a specific information about the main physico chemical methods that allow a characterization of the material Supports of the Information, which have peculiar properties and demand peculiar care for their conservation. The student acquires the awareness of the needed characterization of materials and the methods to evaluate, through an experimental approach, like stress tests and artificial aging, their expected shelf life.
Lesson period: Second semester
Assessment methods: Esame
Assessment result: voto verbalizzato in trentesimi
Single course
This course cannot be attended as a single course. Please check our list of single courses to find the ones available for enrolment.
Course syllabus and organization
Single session
Lesson period
Second semester
Course syllabus
1. Elements of Chemistry and Physical Chemistry
1.1. Chemical Thermodynamics. Energy balance: first principle; Stability of systems: second principle; Phase equilibria; Chemical equilibria.
1.2 Phenimenological Kinetics. Reaction rate; Reaction order; Temperature and reaction rate.
1.3 Disperse Systems. Emulsions; Suspensions; Foams.
2. Conformational transitions of biopolymers (carbohydrates, proteins)
2.1. reversibility and kinetics of the transition;
2.2. effects on the properties of the handcrafts.
3. Isothermal and Temperature Scanning Microcalorimetry
3.1. principles of the calorimetry,
3.2. sampling criteria from handcrafts,
3.3. sensitivity of the method,
3.4. combination with other physical techniques.
4. Viscoelasticity of materials (elements of deformation mechanics and rheology)
4.1. Instruments and methods of the dynamico-mechanical analysis.
5. Microscopy
5.1. Optical microscopy
5.2. Electron microscopy
4.3. Raman Confocal microscopy
4.4. Magnetic scanning microscopy
1.1. Chemical Thermodynamics. Energy balance: first principle; Stability of systems: second principle; Phase equilibria; Chemical equilibria.
1.2 Phenimenological Kinetics. Reaction rate; Reaction order; Temperature and reaction rate.
1.3 Disperse Systems. Emulsions; Suspensions; Foams.
2. Conformational transitions of biopolymers (carbohydrates, proteins)
2.1. reversibility and kinetics of the transition;
2.2. effects on the properties of the handcrafts.
3. Isothermal and Temperature Scanning Microcalorimetry
3.1. principles of the calorimetry,
3.2. sampling criteria from handcrafts,
3.3. sensitivity of the method,
3.4. combination with other physical techniques.
4. Viscoelasticity of materials (elements of deformation mechanics and rheology)
4.1. Instruments and methods of the dynamico-mechanical analysis.
5. Microscopy
5.1. Optical microscopy
5.2. Electron microscopy
4.3. Raman Confocal microscopy
4.4. Magnetic scanning microscopy
Prerequisites for admission
General and Inorganic Chemistry, Physics, Mathematics, Organic Chemistry
Teaching methods
Lecture
Teaching Resources
Slides provided by the teacher
Assessment methods and Criteria
Oral presentation of a case study from literature
Unità didattica A
CHIM/02 - PHYSICAL CHEMISTRY - University credits: 7.5
Lessons: 60 hours
Unità didattica B
CHIM/02 - PHYSICAL CHEMISTRY - University credits: 1.5
Lessons: 12 hours