Comparison
TPS Plasticized Starch J vs PEEK
A side-by-side comparison of Thermoplastic Starch, Plasticized Grade J and Polyether Ether Ketone.
Physical
Density
1.30 g/cm³
1.32 g/cm³
Water Absorption (24h)
5.0 %
0.15 %
Transparency
Translucent to opaque
Opaque (amber)
Shrinkage
3.0 - 6.0 %
1.1 – 1.4 %
Mechanical
Young's Modulus
0.2 GPa
3.6 GPa
Tensile Strength
15 MPa
100 MPa
Elongation at Break
5.0 %
50 %
Impact Strength (Izod)
0.3 J/cm
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
60-80 °C
143 °C
Melting Point
None (degrades)
343 °C
Continuous Service Temperature
40 °C
260 °C
Heat Deflection Temperature
40 °C
160 °C
Electrical
Dielectric Constant
4.0
3.2
Volume Resistivity
10¹⁰ Ω·cm
10¹⁶ Ω·cm
Dielectric Strength
10 kV/mm
—
Chemical resistance
Acids
Sensitive
Excellent
Bases
Sensitive
Excellent
Solvents
Soluble in water and polar solvents like DMF
Excellent
UV Resistance
Poor
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Biodegradable (compost)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Very Low
~30 kg CO₂e / kg