Publication in the Diário da República: Despacho n.º 8955/2023 - 31/08/2023
6 ECTS; 2º Ano, 1º Semestre, 30,0 T + 30,0 PL + 3,0 OT , Cód. 938093.
Lecturer
- Manuel Alberto Nogueira Henriques Rosa (1)(2)
(1) Lead Professor
(2) Teaching Professor
Prerequisites
Not applicable.
Objectives
Be able to classify organic compounds used in conservation and restoration; relate properties and structure; evaluate risks involved with solvents and their interaction with materials; identify the properties of the different CR materials; understand the photo development and paper processes.
Program
Organic Chemistry: Saturated hydrocarbons; Alkanes; Cycloalkanes; Nomenclature of saturated hydrocarbons; Nomenclature of cycloalkanes; Functional groups; alcohols and ethers; Aldehydes and ketones; Carboxylic Polymers and macromolecules: Generalities and definitions; Factors affecting cleaning in conservation and restoration: Physical cleaning techniques; Solvent cleaning techniques; Cleaning with water; Cleaning with organic solvents.
Chemistry of the black and white photography: Development: Chemical development agents, hydroquinone and metol, development mechanism. Alkaline agents, antioxidants, anti fogging and the particular case of sodium sulfite. Stop bath. Fixation and its chemical mechanism. Fixer bath composition. Toning. Washing.
Paper chemistry: Wood Chemistry; Mechanical processes; Semi-chemical processes. Chemical processes; Acid process and delignification reaction. Alkaline or kraft process and delignification reaction. Screening scrubbing and washing the unbleached pulp. Oxygen and ozone bleaching. Formation of the paper sheet.
Evaluation Methodology
Continuous assessment comprises five assessment components in the form of written tests, each marked out of 4, giving a final assessment totalling 20. A pass is awarded when the sum of the marks for all assessment components is 10 or more.
Assessment during the regular examination period and the resit examination period consists of a written test marked out of 20.
Bibliography
- Horie, .. (1987). Materials for Conservation. London: Butterworth
- Masschelein-Kleiner, L. (1981). Les Solvants. Bruxelles: IRPA
- Masschelein-Kleiner, L. (1995). Ancient Binding Media. Roma: ICCROM
- Wilks, (ed), H. (1984). Adhesives and Coatings. Science for Conservation Series. Book 3.. 1, The Conservation Unit. London: Museums & Galleries Commission
Teaching Method
Theoretical and theoretical-practical lessons covering the course content.
Software used in class
Not applicable.
