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PPE vs. NBR Rubber

PPE belongs to the thermoplastics classification, while NBR rubber belongs to the thermoset elastomers (rubber). There are 10 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is PPE and the bottom bar is NBR rubber.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.1
1.3
Elongation at Break, % 30
380
Glass Transition Temperature, °C 85
-30
Maximum Temperature: Mechanical, °C 90
110
Specific Heat Capacity, J/kg-K 1200
1350
Strength to Weight: Axial, points 14
3.9
Strength to Weight: Bending, points 30
12
Tensile Strength: Ultimate (UTS), MPa 55
18
Thermal Conductivity, W/m-K 0.22
0.25
Thermal Diffusivity, mm2/s 0.17
0.15