EVOH Example of oxygen permeabilities versus temperatures C

Examples of oxygen permeability versus crystallinity for 0 and 100% hygrometry (c). EVOH Example of oxygen permeabilities versus temperatures (°C) 

ISO 14663-2 1999 Plastics - Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials - Part 2 Preparation of test specimens and determination of properties 

Ionic groups tend to cluster together, building a physical crosslinking that is thermally reversible. 

Properties depend on the amount of methacrylic acid, the type and level of metallic ions, the crystallinity, the molecular weight and the polarity. 

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