Melt fracture problem of PFA

문제 현상

Melt fracture phenomenon appears on the surface during PFA extrusion

원인 분석

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

해결 방법

Reduce the extrusion speed; raise the die temperature

핵심 요약

PFA has typical perfluoropolymer melt fracture behavior

PFAmelt fractureelastic turbulencedieextrusion

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