Extrusion & Post
6 مشاهدة
LLDPE Film Opening Blocking
ظاهرة المشكلة
Film rolls block and are difficult to open.
تحليل الأسباب
LLDPE film surface tack is relatively large, and blocking occurs when slip and antiblock agents are insufficient; large winding tension and high film temperature aggravate it.
الحل
① Add antiblock agent/slip agent; ② reduce winding tension; ③ fully cool; ④ control storage temperature.
الخلاصة الأساسية
Blocking = additives + tension + temperature.
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