The experimental design was conducted with the following
constraints:
(a) HDPE content was limited to 10% by weight.
(b) LLDPE proportion was limited to 30% by weight.
(c) BUR was varied between 2.0 and 4.5.
(d) FLH was varied between 3 and 6 die diameters.
(e) Thickness was varied between 50 and 90 mm.