Melt fracture problem of PFA

Fenómeno do problema

Melt fracture phenomenon appears on the surface during PFA extrusion

Análise das causas

PFA melt can undergo elastic turbulence and wall slip even at low shear rates

Solução

Reduce the extrusion speed; raise the die temperature

Conclusão principal

PFA has typical perfluoropolymer melt fracture behavior

PFAmelt fractureelastic turbulencedieextrusion

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