Material Drying
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Control of transparency abnormality in PEOX calendering pharmaceutical films
Problembeschreibung
During PEOX calendering production of pharmaceutical films, the problem of large fluctuation in transparency occurs.
Ursachenanalyse
Mainly due to the processing temperature deviating from the window +70-90°C, moisture content >0.5% exceeding the standard, and shear heat accumulation.
Lösung
Strictly control the temperature within the recommended range, fully dry the material to moisture content <0.1%, and reduce the screw speed.
Wichtigste Erkenntnis
PEOX processing requires precise control of the three elements of temperature, humidity, and residence time.
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