Extrusion & Post
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Viscosity fluctuation problem of PBS biodegradable material in blown film
Problembeschreibung
Polybutylene succinate PBS shows viscosity fluctuation in blown film processing at 140-200°C.
Ursachenanalyse
Caused by poor thermal stability of PBS and slow crystallization.
Lösung
Improved by lowering the processing temperature.
Wichtigste Erkenntnis
The degradation characteristics of PBS require gentle processing.
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