Injection Molding
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PETG flame retardant formulation poor processability
Fenómeno del problema
After adding flame retardant, the melt flowability decreases significantly, making injection filling difficult.
Análisis de la causa
The flame retardant filling amount is large affecting flowability, and the flame retardant has poor compatibility with PETG.
Solución
Select a flame retardant system with little impact on flowability (phosphorus-based); add lubricant; appropriately increase the processing temperature.
Conclusión clave
PETG flame retardant modification needs to balance flame retardancy and processability.
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