Comparison
PBAT High Heat vs PA66
A side-by-side comparison of Poly(butylene adipate-co-terephthalate), High Heat Grade BB and Polyamide 6,6 (Nylon).
Physical
Density
1.21 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.45 %
1.2 %
Transparency
Good
Opaque
Shrinkage
1.2 - 2.8 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.35 GPa
3.0 GPa (dry)
Tensile Strength
32 MPa
80 MPa
Elongation at Break
350-550 %
60 %
Impact Strength (Izod)
2.8 J/cm
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-45 °C
70 °C
Melting Point
118-128 °C
255 – 265 °C
Continuous Service Temperature
50 °C
100 – 120 °C
Heat Deflection Temperature
35 °C
75 °C (unfilled)
Electrical
Dielectric Constant
2.9
4.0
Volume Resistivity
10¹³ Ω·cm
10¹² Ω·cm
Dielectric Strength
17 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 fossil-based plastics
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)