International Journal of Polymer Science

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.
ParametersHDPE
NeatFlexible crosslinker
1% BP2% BP3% BP4% BP5% BP
Injection pressure [MPa]96.696.696.6104.7104.7104.7
Injection rate [cm3/s]25.025.025.015.015.015.0
Holding pressure [MPa]96.696.696.6104.7104.7104.7
Holding time [s]2.02.02.02.02.02.0
Cooling time [s]10.010.010.010.010.010.0
Injection time [s]2.02.02.02.02.02.0
Cycle time [s]22.022.022.022.022.022.0
Temperature [°C]      
 Feed50.050.050.060.060.055.0
 Rear 1175.0175.0175.0185.0185.0175.0
 Rear 2165.0165.0165.0175.0175.0165.0
 Middle180.0180.0180.0190.0190.0180.0
 Front195.0195.0195.0205.0205.0195.0
 Nozzle205.0205.0205.0215.0215.0205.0
ParametersHDPE
NeatRigid crosslinker
1% BP2% BP3% BP4% BP5% BP
Injection pressure [MPa]96.6104.7104.7104.7104.7104.7
Injection rate [cm3/s]25.015.015.015.015.015.0
Holding pressure [MPa]96.6104.7104.7104.7104.7104.7
Holding time [s]2.02.02.02.02.02.0
Cooling time [s]10.010.010.010.010.010.0
Injection time [s]2.02.02.02.02.02.0
Cycle time [s]22.022.022.022.022.022.0
Temperature [°C]      
 Feed50.055.055.055.055.055.0
 Rear 1175.0175.0175.0175.0175.0175.0
 Rear 2165.0165.0165.0165.0165.0165.0
 Middle180.0180.0180.0180.0180.0180.0
 Front195.0195.0195.0195.0195.0195.0
 Nozzle205.0205.0205.0205.0205.0205.0