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- Title
Plastic toy soldiers, a lost battle? - an analytical perspective.
- Authors
PEREIRA, ANTÓNIO; CANDEIAS, ANTÓNIO; CARDOSO, ANA; MIRÃO, JOSÉ; TERESA CALDEIRA, ANA
- Abstract
The preservation and conservation of museum collections requires a detailed understanding of their constituent materials. The use of a wide variety of instrumental techniques can provide complementary data regarding the composition and structure of these materials. A set of plastic toy soldiers (mid 20th century) from the Oporto Military Museum (Museu Militar do Porto) exibited accelerated deterioration. To better understand this deterioration process, the authors used a multi-analytical approach. The micromorphological features of the objects were characterized with stereoscopic microscopy and VP-SEM-EDS, the polymer and its additives were identified with ATR-FTIR, and 1H and 13C NMR, respectively, and the crystalline degradation products were identified with micro-XRD. The polymer that composes the toys was identified as cellulose acetate, with triphenyl phosphate and dimethyl phthalate additives. A crystalline efflorescence of triphenyl phosphate was identified as a degradation product. This methodology showed to be adequate for a detailed characterization of plastic artefacts in museum environments.
- Subjects
MILITARY miniatures; PHOSPHAMIDON; CELLULOSE acetate; MILITARY museums; EFFLORESCENCE
- Publication
Conservar Património, 2021, Vol 37, p92
- ISSN
1646-043X
- Publication type
Article
- DOI
10.14568/cp2020002