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ARTIS publish a paper looking at the compositional changes of FKM and HNBR after sour gas aging

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A paper recently published by ARTIS scientists, Dr Chris Norris, Mike Hale and Martyn Bennett discusses the property and compositional changes encountered, after aging FKM and HNBR elastomers in a sour gas environment. The paper highlights that while current assessments of elastomer suitability in sour environments focuses on physical changes, a lack of understanding of the chemical changes these materials experience need to be addressed.

The results presented within this paper show a number of degradative mechanisms had occurred including additional crosslinking, chain scission, filler modification, dehydrofluorination, low-level oxidative aging and extraction of soluble matter. This clearly calls into question the validity if using single rate Arrhenius analysis for lifetime prediction

 

Testing of further samples at incremental stages during aging will allow chemical changes to be correlated with property modification as a function of time, and may provide a route to more robust lifetime predictions. Analysis of used or failed service parts would help verify that the aging regimes adopted are accelerating the relevant modes of degradation.

Please follow the link to get access to the full paper: http://www.tandfonline.com/doi/full/10.1080/14658011.2016.1177271

Or to talk to one of our Experts about Sour Gas aging Call +44(0)1225896500 or submit an enquiry on our website.

  • Summary:

    A paper recently published by ARTIS scientists, Dr Chris Norris, Mike Hale and Martyn Bennett discusses the property and compositional changes encountered, after aging FKM and HNBR elastomers in a sour gas environment.

  • Category Tag:
    • Sour Gas
    • News
    • Research
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