Model study of the leather degradation by oxidation and hydrolysis
|Year of publication
|Article in Periodical
|Magazine / Source
|MU Faculty or unit
|Leather; ATR-FTIR; MHT; Sparse PCA
|In this paper, artificially degraded leather samples as a theoretical representative of cultural heritage objects were examined. We discuss the use of both techniques (IR and MHT) as potential methods for fast assessment of oxidation and hydrolysis of vegetable tanned leathers and degradation level. New samples of leather tanned by various vegetable tannins were artificially degraded under controlled conditions. We simulated the photooxidation by means of the Xenon arc lamp exposure, oxidation using the soaking in hydrogen peroxide, acid hydrolysis by the soaking in hydrochloric acid and alkaline hydrolysis using the soaking in natrium hydroxide. ATR-FTIR spectra of refer- ence and tested samples were compared.