Extrusion & Post
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Difficult post-stretching of PLA fiber
Problem Phenomenon
The elongation of PLA fiber is insufficient during stretching and setting.
Cause Analysis
The molecular structure of PLA is simple and it is not easy to further stretch after orientation, and the elongation is low.
Solution
Control the stretching temperature above Tg and stretch gently.
Key Takeaway
PLA fiber stretching is sensitive to temperature.
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