Injection Molding
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Fluidity decline of PET modified material
Fenómeno del problema
After adding fillers (glass fiber, mineral powder) or flame retardants to PET, MFI decreases significantly and '2079851475616104452 is difficult.
Análisis de la causa
Rigid fillers increase melt viscosity (particle-particle and particle-molecular chain friction); fillers are not surface-treated.
Solución
Use silane coupling agents to treat fillers; control filler dosage and particle size distribution; add lubricants or flow modifiers.
Conclusión clave
The fluidity loss of PET filled modification needs to be compensated through filler surface treatment and process adjustment.
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