Molding Process
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Influence of cooling rate on PETG transparency
Problembeschreibung
The transparency of products differs significantly under different cooling rates.
Ursachenanalyse
The cooling rate affects the molecular chain packing density and free volume, and too fast cooling produces density unevenness.
Lösung
Control the mold temperature to make the cooling rate uniform; anneal if necessary to homogenize the microstructure.
Wichtigste Erkenntnis
PETG transparency is sensitive to cooling conditions.
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