Modern Plastics-do they suffer from the Cold?

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningpeer review

Abstrakt

It has been proposed that the best storage environment for materials in museum collections is between +10 and -20°C. The basis for this assertion is that a 10°C reduction in temperature halves the rate of chemical reactions, and many modern materials are short-lived. In practice, few museums apply cold storage to their collections, with the exception of photographic archives, so there is limited experience of its effectiveness in preservation. Plastics are formulated by combining polymers, property modifiers, and colors. Each material has its own thermal response. On cooling, polymer crystallinity increases, resulting in a reduced compatibility of low molecular weight components. This article discusses the influence of reducing the storage temperature on the physical properties of plastics, based on both theory and experimental findings. Such changes influence the physical stability of plastics. The extent of degradation may be minimized by controlling the rate of cooling of plastics so that they shrink gradually, thus reducing the tensile stress on neighboring materials. The rate of cooling of plastics materials also has a significant influence on their physical stability.
OriginalsprogEngelsk
TitelModern Art, New Museums: Contributions to the 2004 IIC Congress, Bilbao
RedaktørerAshok Roy, Perry Smith
Udgivelses stedLondon
ForlagInternational Institute for Conservation of Historic and Artistic Works
Publikationsdato1 nov. 2004
Sider91-95
ISBN (Trykt)0954816900
StatusUdgivet - 1 nov. 2004

Citationsformater

Shashoua, Y. (2004). Modern Plastics-do they suffer from the Cold? I A. Roy, & P. Smith (red.), Modern Art, New Museums: Contributions to the 2004 IIC Congress, Bilbao (s. 91-95). International Institute for Conservation of Historic and Artistic Works.