Environmental chambers for the accelerated ageing: effect of microclimates on cultural heritage

Author(s)

Renato Inhasz Paiva ^[1] ; José Roberto Caetano da Rocha ^[2] ; Andrea Cavicchioli ^[3] ; Fernando Silva Lopes ^[4] ; Dalva Lúcia Araújo de Faria ^[5]

Affiliation

^[1] Universidade de São Paulo. Escola de Artes, Ciências e Humanidades - Brasil

^[2] Universidade de São Paulo. Escola de Artes, Ciências e Humanidades - Brasil

^[3] Universidade de São Paulo. Escola de Artes, Ciências e Humanidades - Brasil

^[4] Universidade de São Paulo. Instituto de Química - Brasil

^[5] Universidade de São Paulo. Instituto de Química - Brasil

• Document type: Journal article
• Source: Química Nova; v. 33, n. 1, p. 189-194, 2010-00-00.

Abstract

Environmental chambers were designed for the accelerated ageing of materials used in artistic artifacts to study the synergistic action of temperature, humidity, UV and visible radiation and gaseous pollutants. Two inox-steel/PTFE compartments are kept under controlled temperature and relative humidity, whose values are transmitted to a PC, which stores, plots in real time and continuously feedback heating and humidifying devices through logical signals. A borosilicate, or quartz, window allows the irradiation inside the chamber from an external source. A flow of purified air purges the chamber and conveys selected pollutants from an external source. Each independent compartment works under either stationary or cyclic conditions. (AU)

• FAPESP's process: 01/09497-8 - Spectroscopy, characterization and modeling of microenvironments
• Grantee: Marcia Laudelina Arruda Temperini
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 06/61437-3 - Impact of microenvironments in cultural heritage conservation
• Grantee: Andrea Cavicchioli
• Support Opportunities: Research Grants - Young Investigators Grants