SBR Rubber vs. PPE

SBR rubber belongs to the thermoset elastomers (rubber) classification, while PPE belongs to the thermoplastics. There are 10 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 SBR rubber and the bottom bar is PPE.

Styrene Butadiene Rubber (SBR, Buna-S)Polyphenylene Ether (PPE)

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		1.1
Density, g/cm³		1.1

Elongation at Break, %		530
Elongation at Break, %		30

Glass Transition Temperature, °C		-30
Glass Transition Temperature, °C		85

Maximum Temperature: Mechanical, °C		100
Maximum Temperature: Mechanical, °C		90

Specific Heat Capacity, J/kg-K		1880
Specific Heat Capacity, J/kg-K		1200

Strength to Weight: Axial, points		3.4
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		11
Strength to Weight: Bending, points		30

Tensile Strength: Ultimate (UTS), MPa		14
Tensile Strength: Ultimate (UTS), MPa		55

Thermal Conductivity, W/m-K		0.17
Thermal Conductivity, W/m-K		0.22

Thermal Diffusivity, mm²/s		0.082
Thermal Diffusivity, mm²/s		0.17

SBR Rubber vs. PPE

Material Properties

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