Bimodal HDPE for high quality thin blown film
Production of high quality thin blown film is possible with two grades of advanced bimodal high density polyethylenes (HDPE) from SABIC. High molecular weight and a broad molecular weight distribution allow good processability that will minimise disruptions during film production combined with good mechanical properties in the blown film. Low gel levels lead to consistent film production and a smooth film surface. Film makers can achieve acceptable gauge tolerances at very low thicknesses. Both grades can be processed at temperatures around 10% lower than a typically common HDPE grade.
“The balanced properties of the grades are key to attaining a consistent, reliable and efficient film production process,” explains PE technical marketing engineer Krzysztof Rozensa. “In particular, HDPE FI1157 can be processed at a high speed while maintaining a solid bubble stability, maximising film output and minimising energy consumption.”
HDPE FI1157 can be typically used for the production of lamination films, release films, inliners, labels and artificial paper. Converters can increase the efficiency and performance of their operations by using significantly less material while still producing film with adequate stiffness and strength. Furthermore, films have an impact resistance around 20% higher than films made from a typically common HDPE grade.
“The improved processability enables a more efficient production process and the improved mechanical properties enable the production of thinner films without compromising on high product performance,” continues Rozensal.
Its toughness and impact properties make FI0644 suitable for applications which require extra strength. Films have impact resistance at least 15% higher than those obtained with a common HDPE grade. Typical applications include heavy duty bags, inliners, meat bags, grocery sacks and carrier bags. Films made with both resins exhibit a strong combination of stiffness and tear resistance.
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