Comparison
PHA Biocompatible vs PA66
A side-by-side comparison of Polyhydroxyalkanoate, Biocompatible Grade HH and Polyamide 6,6 (Nylon).
Physical
Density
1.22 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.8 %
1.2 %
Transparency
Moderate
Opaque
Shrinkage
2.0 - 4.5 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.6 GPa
3.0 GPa (dry)
Tensile Strength
35 MPa
80 MPa
Elongation at Break
5.0 %
60 %
Impact Strength (Izod)
1.0 J/cm
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-3 °C
70 °C
Melting Point
110-120 °C
255 – 265 °C
Continuous Service Temperature
40 °C
100 – 120 °C
Heat Deflection Temperature
35 °C
75 °C (unfilled)
Electrical
Dielectric Constant
3.0
4.0
Volume Resistivity
10¹¹ Ω·cm
10¹² Ω·cm
Dielectric Strength
15 kV/mm
—
Chemical resistance
Acids
Good resistance
Poor
Bases
Good resistance
Good
Solvents
Resistant to aliphatic hydrocarbons, but attacked by chlorinated and aromatic hydrocarbons
—
UV Resistance
Moderate
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Biodegradable (compost, medical applications)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Low
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)