PPO vs. PMP

Both PPO and PMP are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is PPO and the bottom bar is PMP.

Polyphenylene Oxide (PPO)Polymethylpentene (PMP)

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, %		3.5 to 28
Elongation at Break, %		30

Impact Strength: Notched Izod, J/m		80 to 270
Impact Strength: Notched Izod, J/m		130

Tensile Strength: Ultimate (UTS), MPa		63 to 140
Tensile Strength: Ultimate (UTS), MPa		24

Thermal Properties

Maximum Temperature: Mechanical, °C		100 to 110
Maximum Temperature: Mechanical, °C		140

Specific Heat Capacity, J/kg-K		1020 to 1250
Specific Heat Capacity, J/kg-K		1750

Thermal Expansion, µm/m-K		25 to 60
Thermal Expansion, µm/m-K		120

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz		2.7 to 3.2
Dielectric Constant (Relative Permittivity) At 1 Hz		2.1

Dielectric Strength (Breakdown Potential), kV/mm		19 to 21
Dielectric Strength (Breakdown Potential), kV/mm		28

Electrical Resistivity Order of Magnitude, 10^x Ω-m		15
Electrical Resistivity Order of Magnitude, 10^x Ω-m		14

Otherwise Unclassified Properties

Density, g/cm³		1.1 to 1.4
Density, g/cm³		0.83

Common Calculations

Strength to Weight: Axial, points		16 to 27
Strength to Weight: Axial, points		8.0

Strength to Weight: Bending, points		33 to 42
Strength to Weight: Bending, points		22