Design Guide - Solvay Plastics

Figure 61: Amodel A-1000 PPA, Specific Heat
vs. Temperature
Figure 63: Amodel A-5000, Specific Heat
vs. Temperature
Temperature, °F
100 200 300 400 500 600
Temperature, °F
100 200 300 400 500 600
6
1.4
6
1.4
Specific Heat, J/g°C
5
4
3
2
1
1.2
1.0
0.8
0.6
0.4
0.2
Specific Heat, Btu/lb°F
Specific Heat, J/g°C
5
4
3
2
1
1.2
1.0
0.8
0.6
0.4
0.2
Specific Heat, Btu/lb°F
0
0.0
0 50 100 150 200 250 300 350
Temperature, °C
0
0.0
0 50 100 150 200 250 300 350
Temperature, °C
Figure 62: Amodel A-4000, Specific Heat
vs. Temperature
Figure 64: Amodel A-6000, Specific Heat
vs. Temperature
Temperature, °F
100 200 300 400 500 600
Temperature, °F
100 200 300 400 500 600
6
1.4
6
1.4
Specific Heat, J/g°C
5
4
3
2
1
1.2
1.0
0.8
0.6
0.4
0.2
Specific Heat, Btu/lb°F
Specific Heat, J/g°C
5
4
3
2
1
1.2
1.0
0.8
0.6
0.4
0.2
Specific Heat, Btu/lb°F
0
0.0
0 50 100 150 200 250 300 350
Temperature, °C
0
0.0
0 50 100 150 200 250 300 350
Temperature, °C
Specific Heat
Specific heat is defined as the amount of heat required
to change the temperature of a unit mass one degree.
Figures 61 through 64 show the specific heat as a
function of temperature for the Amodel base resins.
Notice that the specific heat changes significantly
at the melting point. This behavior is typical of
semi-crystalline thermoplastics.
This information can be used by process engineers
to calculate the heat input needed to process Amodel
resins on equipment such as extruders or injection
molding machines.
46 Amodel ® PPA Design Guide
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