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Soda-lime Glass vs. PPA

Soda-lime glass and PPA belong to fundamentally different material chemistries. Soda-lime glass is a ceramic material, while PPA is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is soda-lime glass and the bottom bar is PPA.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70 to 71
2.1 to 2.2
Poisson's Ratio 0.23
0.4
Tensile Strength: Ultimate (UTS), MPa 41 to 180
57 to 69

Thermal Properties

Specific Heat Capacity, J/kg-K 720 to 800
1400
Thermal Conductivity, W/m-K 1.0 to 1.1
0.15

Otherwise Unclassified Properties

Density, g/cm3 2.4
1.1

Common Calculations

Stiffness to Weight: Axial, points 16
1.0 to 1.1
Stiffness to Weight: Bending, points 56
38
Strength to Weight: Axial, points 4.6 to 20
14 to 17
Strength to Weight: Bending, points 11 to 28
29 to 33
Thermal Diffusivity, mm2/s 0.51 to 0.6
0.095