Gamma irradiation, ethylene oxide, and steam autoclave each degrade body jewelry polymers differently. BioFlex PP-R, PTFE, silicone, and acrylic respond with distinct chain scission, crosslinking, and hydrolysis behavior.
What the full article covers
Gamma irradiation crosslinks some polymers and scissions others; BioFlex (PP-R) tolerates it, PTFE and acrylic do not
Ethylene oxide sterilization leaves reactive residuals that must be aerated to ISO 10993-7 limits
Steam autoclave adds hydrolysis to thermal stress, the fastest degradation route for condensation polymers
Matching polymer to sterilization method is a specification decision, not a workflow afterthought
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First published on poliinternational.com. This is a summary of the original engineering article.
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