Extrusion & Post
9 Aufrufe
CMC Film Blocking and Difficult Layer Separation
Problembeschreibung
Interlayer blocking of CMC film with separation force >5N/15mm; automatic slitting machine cannot separate the layers
Ursachenanalyse
CMC surface adhesion is strong; film temperature is too high >40°C during winding; low-molecular substances migrate to the surface to form an adhesive layer
Lösung
1)Add 0.3-0.5wt% antiblocking agent erucamide; 2)Fully cool to <25°C before winding; 3)Add 0.2wt% slip agent to synergistically reduce blocking; 4)Reduce winding tension to reduce interlayer pressure
Wichtigste Erkenntnis
Film blocking is caused by surface tack and high-temperature winding; antiblocking agent and full cooling are effective countermeasures
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!