Research Article
Recycling of Cooking Oil Waste into Reactive Polyurethane for Blending with Thermoplastic Polyethylene
Table 3
The main injection molding parameters used for HDPE/BP compounds.
| Parameters | HDPE | Neat | Flexible crosslinker | 1% BP | 2% BP | 3% BP | 4% BP | 5% BP |
| Injection pressure [MPa] | 96.6 | 96.6 | 96.6 | 104.7 | 104.7 | 104.7 | Injection rate [cm3/s] | 25.0 | 25.0 | 25.0 | 15.0 | 15.0 | 15.0 | Holding pressure [MPa] | 96.6 | 96.6 | 96.6 | 104.7 | 104.7 | 104.7 | Holding time [s] | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | Cooling time [s] | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | Injection time [s] | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | Cycle time [s] | 22.0 | 22.0 | 22.0 | 22.0 | 22.0 | 22.0 | Temperature [°C] | | | | | | | Feed | 50.0 | 50.0 | 50.0 | 60.0 | 60.0 | 55.0 | Rear 1 | 175.0 | 175.0 | 175.0 | 185.0 | 185.0 | 175.0 | Rear 2 | 165.0 | 165.0 | 165.0 | 175.0 | 175.0 | 165.0 | Middle | 180.0 | 180.0 | 180.0 | 190.0 | 190.0 | 180.0 | Front | 195.0 | 195.0 | 195.0 | 205.0 | 205.0 | 195.0 | Nozzle | 205.0 | 205.0 | 205.0 | 215.0 | 215.0 | 205.0 |
| Parameters | HDPE | Neat | Rigid crosslinker | 1% BP | 2% BP | 3% BP | 4% BP | 5% BP |
| Injection pressure [MPa] | 96.6 | 104.7 | 104.7 | 104.7 | 104.7 | 104.7 | Injection rate [cm3/s] | 25.0 | 15.0 | 15.0 | 15.0 | 15.0 | 15.0 | Holding pressure [MPa] | 96.6 | 104.7 | 104.7 | 104.7 | 104.7 | 104.7 | Holding time [s] | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | Cooling time [s] | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | Injection time [s] | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | Cycle time [s] | 22.0 | 22.0 | 22.0 | 22.0 | 22.0 | 22.0 | Temperature [°C] | | | | | | | Feed | 50.0 | 55.0 | 55.0 | 55.0 | 55.0 | 55.0 | Rear 1 | 175.0 | 175.0 | 175.0 | 175.0 | 175.0 | 175.0 | Rear 2 | 165.0 | 165.0 | 165.0 | 165.0 | 165.0 | 165.0 | Middle | 180.0 | 180.0 | 180.0 | 180.0 | 180.0 | 180.0 | Front | 195.0 | 195.0 | 195.0 | 195.0 | 195.0 | 195.0 | Nozzle | 205.0 | 205.0 | 205.0 | 205.0 | 205.0 | 205.0 |
|
|