Comparison
Chitosan Film vs PA66
A side-by-side comparison of Chitosan, Film Grade T and Polyamide 6,6 (Nylon).
Physical
Density
1.40-1.50 g/cm³
1.14 g/cm³
Water Absorption (24h)
5.0-10.0 %
1.2 %
Transparency
Good
Opaque
Shrinkage
3.0-6.0 %
1.5 – 2.0 %
Mechanical
Young's Modulus
1.0-2.0 GPa
3.0 GPa (dry)
Tensile Strength
30-50 MPa
80 MPa
Elongation at Break
5.0 %
60 %
Impact Strength (Izod)
0.2 J/cm
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
80-120 °C
70 °C
Melting Point
None (degrades)
255 – 265 °C
Continuous Service Temperature
60 °C
100 – 120 °C
Heat Deflection Temperature
50 °C
75 °C (unfilled)
Electrical
Dielectric Constant
5.0
4.0
Volume Resistivity
10¹⁰ Ω·cm
10¹² Ω·cm
Dielectric Strength
15 kV/mm
—
Chemical resistance
Acids
Soluble in dilute acids
Poor
Bases
Good resistance
Good
Solvents
Insoluble in water and most organic solvents, but soluble in dilute acidic solutions and certain solvent mixtures
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Biodegradable (compost)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Low (utilizes waste streams)
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)