Extrusion & Post
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PES hollow fiber membrane unstable drawing
Problembeschreibung
Uneven wall thickness or broken filaments occur in hollow fiber membrane spinning
Ursachenanalyse
The spinning solution (casting solution) composition does not match; coagulation bath temperature and composition fluctuate; draw ratio set improperly
Lösung
Optimize the polymer content and additive formulation of the spinning solution; precisely control the coagulation bath conditions; adjust the draw ratio within a suitable range
Wichtigste Erkenntnis
The PES hollow fiber membrane manufacturing process is high-precision process control
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