Comparison
Lignin Filler vs PA66
A side-by-side comparison of Lignin, Filler Grade S and Polyamide 6,6 (Nylon).
Physical
Density
1.2-1.4 g/cm³
1.14 g/cm³
Water Absorption (24h)
2.0-5.0 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
Varies with matrix
1.5 – 2.0 %
Mechanical
Young's Modulus
Highly variable (depends on source and processing)
3.0 GPa (dry)
Tensile Strength
Highly variable
80 MPa
Elongation at Break
Highly variable
60 %
Impact Strength (Izod)
Highly variable
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
100-150 °C
70 °C
Melting Point
None (degrades)
255 – 265 °C
Continuous Service Temperature
70 °C
100 – 120 °C
Heat Deflection Temperature
Varies with matrix
75 °C (unfilled)
Electrical
Dielectric Constant
3.5-4.5
4.0
Volume Resistivity
10⁹-10¹² Ω·cm
10¹² Ω·cm
Dielectric Strength
10-20 kV/mm
—
Chemical resistance
Acids
Moderate resistance
Poor
Bases
Poor resistance
Good
Solvents
Soluble in some organic solvents like DMSO, dioxin
—
UV Resistance
Good (inherent)
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Biodegradable (if not compounded with non-biodegradable matrix)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Negative to very low (utilizes byproduct)
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)