Abstract
Accelerated ageing tests have been the industry standard for many years. With the introduction of CFC alternatives these accelerated ageing tests have become questionable. This paper describes how the ageing of foams, based on the novel blowing agents, can be predicted. The comparison of an «experimental data set» with a «calculated data set» shows the accuracy and reliability of the method presented in this paper. The calculated data set is generated via the determination of fundamental foam physical properties and an ageing calculation model. The two most important facton are the effective diffusion constant and the initial cell gas composition. The influence of temperature on both the effective diffusion constants and gas content is determined
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