Comparison
Hydrolysis Resistant Thermoplastic Polyurethane for Medical Applications vs PEEK
A side-by-side comparison of Thermoplastic Polyurethane (TPU) - Hydrolysis Resistant Grade for Medical and Polyether Ether Ketone.
Physical
Density
1.15 - 1.20 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.6 - 1.0 %
0.15 %
Transparency
Clear to Translucent
Opaque (amber)
Shrinkage
0.6 - 1.4 %
1.1 – 1.4 %
Mechanical
Young's Modulus
0.01 - 0.08 GPa
3.6 GPa
Tensile Strength
20 - 40 MPa
100 MPa
Elongation at Break
500 - 750 %
50 %
Impact Strength (Izod)
Good (especially notched)
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
-40 to -30 °C
143 °C
Melting Point
150 - 170 °C
343 °C
Continuous Service Temperature
-40 to 80 °C
260 °C
Heat Deflection Temperature
40 - 60 °C
160 °C
Electrical
Dielectric Constant
5.2 - 6.2
3.2
Volume Resistivity
10^11 - 10^13 Ohm-cm
10¹⁶ Ω·cm
Dielectric Strength
16 - 24 kV/mm
—
Chemical resistance
Acids
Good
Excellent
Bases
Good
Excellent
Solvents
Resists oils, greases; swells in strong acids, ketones
Excellent
UV Resistance
Fair
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Recyclable (thermoplastic)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate
~30 kg CO₂e / kg