From: Analysis of variance of injection moulding process parameters and clay particles size effects on impact strength, shrinkage and warpage of polyethylene/kaolin clay composites
Parameters (symbols)
Units
Level 1
Level 2
Level 3
Injection temperature (IT)
°C
180
200
220
Packing pressure (PP)
Bar
6
8
10
Packing time (PT)
s
1
2
3