
Analytical Metrology and Restabilization Procedures for Post-Consumer Flake
Stabilizing post-consumer flake requires baseline infrared oxidation metrology paired with balanced phenolic-phosphite packages to prevent melt chain scission.

Stabilizing post-consumer flake requires baseline infrared oxidation metrology paired with balanced phenolic-phosphite packages to prevent melt chain scission.

Intrinsic viscosity loss in reprocessed PET flake is quantified by dilute solution viscometry using ASTM D4603 to prevent structural failure in preforms.

Karl Fischer moisture testing of recycled PET flake requires thermal desorption at 170 C with methanol-free reagents to eliminate volatile interference.

Zero-shear viscosity limitations prevent physical separation of hydrolyzed polymer fractions when short-chain plasticization and viscous fingering collapse flow differentials.
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