Extrusion & Post
8 views
CEF extrusion film has gel particles
Problem Phenomenon
Transparent gel particles of 0.1-0.5mm appear on the surface of the CEF extruded film
Cause Analysis
The high-molecular-weight components in CEF are not fully melted during extrusion, forming local high-crystallization areas; the extrusion temperature is low or the mixing is insufficient
Solution
1) Increase the extrusion temperature by 5-10°C to ensure full melting; 2) Increase the length of the screw mixing section; 3) Inspect the raw materials to ensure consistent grades; 4) Replace with a finer screen 120 mesh to intercept unmelted particles
Key Takeaway
Gel particles are caused by insufficient melting; increasing the temperature and mixing are the key
Was this helpful?
0 people found this helpful
Thank you for your feedback!