Comparison
PBAT Flexible Film Grade I vs PA66
A side-by-side comparison of Poly(butylene adipate-co-terephthalate), Flexible Film Grade I and Polyamide 6,6 (Nylon).
Physical
Density
1.20 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.4 %
1.2 %
Transparency
Good
Opaque
Shrinkage
1.0 - 2.5 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.3 GPa
3.0 GPa (dry)
Tensile Strength
30 MPa
80 MPa
Elongation at Break
400-600 %
60 %
Impact Strength (Izod)
3.0 J/cm
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-50 °C
70 °C
Melting Point
110-120 °C
255 – 265 °C
Continuous Service Temperature
40 °C
100 – 120 °C
Heat Deflection Temperature
25 °C
75 °C (unfilled)
Electrical
Dielectric Constant
2.8
4.0
Volume Resistivity
10¹³ Ω·cm
10¹² Ω·cm
Dielectric Strength
16 kV/mm
—
Chemical resistance
Acids
Good resistance
Poor
Bases
Good resistance
Good
Solvents
Resistant to aliphatic hydrocarbons, but swells in chlorinated solvents
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Biodegradable (compost)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Lower than petrochemical plastics
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)