Dear researcher,
I do blown film extrusion of (HDPE / LDPE / LLDPE), and I would like to increase its the dart impact. how can we reach a value of 150g/mil?
What additives we can use to achieve that value?
What parameters in the extrusion process can we change to achieve our goal?
Thank you
Blending and copolymerization's are tested methods but are not the limits. Composites with the Kevlar fibers maybe useful.
Decrease the extrusion rate could be work because it well increases pressures on the polymer and gets the polymer more crystalline and in turn increase the dart impact
In my opinion, the properties modification could be achieved by the components ratio rather than extrusion conditions. According to patent https://patents.google.com/patent/CN101111375B/en you could produce film with Dart impact 150 g/mil.
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