COMRADE event 2016

Aging of polymers in nuclear applications - Education and workshop

Energiforsk invited Dr Sue Burnay, John Knott Associates ltd, UK, to give a one-day education on the ageing of polymers in nuclear applications on September 21. Dr Burnay is one of the world´s leading experts in the degradation of polymers in nuclear applications. In connection to the education we had a workshop to present results from the COMRADE project, financed by SAFIR, the Swedish Radiation Safety Authority and Energiforsk.

Date: September 21-22, 2016


September 21 Education - Why is polymer ageing of concern?
Preliminary schedule 9.00-17.00
The following topics were covered:

  • Importance of polymeric components
  • Basics of polymer degradation
    • Polymer types in use
    • Degradation stressors & mechanisms
    • Ageing effects on macroscopic properties
  • Accelerated ageing – thermal & radiation
  • Diffusion-limited oxidation – why is it important?
  • Dose rate effects and synergism
  • Pigment/formulation effects
  • Special situations
    • Reverse temperature effect
    • Temperature transients in seals

An overview of assessment of aged polymeric components and lifetime prediction methods was also given.


1 Why aging is a concern

2 Ageing assessment

3 Lifetime prediction methods

Links to useful documents:

September 22 COMRADE workshop
9.00-14.00 Results from the COMRADE Project were presented and discussed in workshop format, the documentation is found below.

Minutes from the workshop can be downloded here.