Extrusion & Post
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Difficult post-stretching of PLA fiber
Problembeschreibung
The elongation of PLA fiber is insufficient during stretching and setting.
Ursachenanalyse
The molecular structure of PLA is simple and it is not easy to further stretch after orientation, and the elongation is low.
Lösung
Control the stretching temperature above Tg and stretch gently.
Wichtigste Erkenntnis
PLA fiber stretching is sensitive to temperature.
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