Extrusion & Post
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Viscosity fluctuation problem of PBS biodegradable material in sheet extrusion
Problem Phenomenon
Polybutylene succinate PBS shows viscosity fluctuation in sheet extrusion processing at 140-200°C.
Cause Analysis
Caused by poor thermal stability of PBS and slow crystallization.
Solution
Improved by thorough drying.
Key Takeaway
The degradation characteristics of PBS require gentle processing.
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