Aging of Cellular Plastic Insulations

摘要

This report summarizes our studies on cellular plastic insulations and outlinesthe future research in the project of 'Innovative Low Energy Building Structure' in the Finnish energy research program RAKET-Energy Use in Buildings. Therefore, to prepare an apparatus for measuring gaseous transport properties within foam insulations, to establish a more general ageing performance of some newly developed cellular plastics then became the main objectives of our last year's study. For the purpose of getting transport properties of a cellular plastic, a diffusion chamber system has been designed. The critical parameters related to the system have been figured out theoretically. A new method could allow us to shorten the requird-test-time in comparison to the traditional method. (Copyright (c) Valtion tekinillinen tutkimuskeskus (VTT) 1995.)