Comparison
Chitosan Film vs PEEK
A side-by-side comparison of Chitosan, Film Grade T and Polyether Ether Ketone.
Physical
Density
1.40-1.50 g/cm³
1.32 g/cm³
Water Absorption (24h)
5.0-10.0 %
0.15 %
Transparency
Good
Opaque (amber)
Shrinkage
3.0-6.0 %
1.1 – 1.4 %
Mechanical
Young's Modulus
1.0-2.0 GPa
3.6 GPa
Tensile Strength
30-50 MPa
100 MPa
Elongation at Break
5.0 %
50 %
Impact Strength (Izod)
0.2 J/cm
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
80-120 °C
143 °C
Melting Point
None (degrades)
343 °C
Continuous Service Temperature
60 °C
260 °C
Heat Deflection Temperature
50 °C
160 °C
Electrical
Dielectric Constant
5.0
3.2
Volume Resistivity
10¹⁰ Ω·cm
10¹⁶ Ω·cm
Dielectric Strength
15 kV/mm
—
Chemical resistance
Acids
Soluble in dilute acids
Excellent
Bases
Good resistance
Excellent
Solvents
Insoluble in water and most organic solvents, but soluble in dilute acidic solutions and certain solvent mixtures
Excellent
UV Resistance
Poor
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Biodegradable (compost)
Recyclable (specialty)
Recycling Code
7 (Other)
7
Carbon Footprint
Low (utilizes waste streams)
~30 kg CO₂e / kg