DescriptionPlastic lamp cord - brittle after 50 yrs.jpg
English: Loss of plasticizers due to diffusion and evaporation eventually leads to the hardening of the plastic insulation, to the point that the slightest flexing causes the plastic to crumble apart.
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Dégradation d’un cordon isolant de plastique, par perte de plastifiants due à la diffusion et à l’évaporation) qui a finalement conduit au durcissement de l'isolant plastique, => flexion provoque cassures effritement du plastique