PPE vs. EVA

Both PPE and EVA are thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

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

Polyphenylene Ether (PPE)Ethylene Vinyl Acetate (EVA)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		2.3
Elastic (Young's, Tensile) Modulus, GPa		0.015 to 0.080

Elongation at Break, %		30
Elongation at Break, %		300 to 800

Tensile Strength: Ultimate (UTS), MPa		55
Tensile Strength: Ultimate (UTS), MPa		3.0 to 35

Thermal Properties

Melting Onset (Solidus), °C		260
Melting Onset (Solidus), °C		55 to 95

Specific Heat Capacity, J/kg-K		1200
Specific Heat Capacity, J/kg-K		1400

Thermal Conductivity, W/m-K		0.22
Thermal Conductivity, W/m-K		0.34

Vicat Softening Temperature, °C		140
Vicat Softening Temperature, °C		45 to 80

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm³		1.1
Density, g/cm³		0.93 to 1.0

Common Calculations

Stiffness to Weight: Axial, points		1.2
Stiffness to Weight: Axial, points		0.0087 to 0.048

Stiffness to Weight: Bending, points		42
Stiffness to Weight: Bending, points		8.6 to 15

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		0.87 to 10

Strength to Weight: Bending, points		30
Strength to Weight: Bending, points		4.8 to 26

Thermal Diffusivity, mm²/s		0.17
Thermal Diffusivity, mm²/s		0.25 to 0.26