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CA vs. PPSU

Both CA and PPSU are thermoplastics. There are 21 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 CA and the bottom bar is PPSU.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 25 to 30
26
Flexural Modulus, GPa 1.7 to 2.1
4.7
Flexural Strength, MPa 40 to 55
130
Tensile Strength: Ultimate (UTS), MPa 30 to 37
95

Thermal Properties

Glass Transition Temperature, °C 230
220
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 65 to 75
210
Heat Deflection Temperature At 455 kPa (66 psi), °C 75 to 85
220
Maximum Temperature: Autoignition, °C 400
580
Maximum Temperature: Decomposition, °C 250
560
Specific Heat Capacity, J/kg-K 1500
970
Thermal Conductivity, W/m-K 0.25
0.24
Thermal Expansion, µm/m-K 14
45

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 3.6
3.4
Dielectric Strength (Breakdown Potential), kV/mm 15
16
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
14

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.4
Limiting Oxygen Index (LOI), % 17
38
Water Absorption After 24 Hours, % 2.3
0.44

Common Calculations

Strength to Weight: Axial, points 6.4 to 7.9
19
Strength to Weight: Bending, points 17 to 19
33
Thermal Diffusivity, mm2/s 0.13
0.17