Comparison
PBS High Strength vs PLA
A side-by-side comparison of Polybutylene Succinate, High Strength Grade AA and Polylactic Acid.
Physical
Density
1.27 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.45 %
0.5 %
Transparency
Good
Semi-transparent
Shrinkage
1.8 - 3.2 %
0.3 – 0.5 %
Mechanical
Young's Modulus
0.8 GPa
3.5 GPa
Tensile Strength
45 MPa
50 – 65 MPa
Elongation at Break
6.0 %
6 %
Impact Strength (Izod)
0.6 J/cm
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
-12 °C
60 °C
Melting Point
112-117 °C
150 – 160 °C
Continuous Service Temperature
55 °C
45 °C
Heat Deflection Temperature
50 °C
55 °C
Electrical
Dielectric Constant
3.0
3.0
Volume Resistivity
10¹³ Ω·cm
10¹⁴ Ω·cm
Dielectric Strength
19 kV/mm
—
Chemical resistance
Acids
Good resistance
Fair
Bases
Good resistance
Poor
Solvents
Resistant to aliphatic hydrocarbons, swells in chlorinated solvents
—
UV Resistance
Moderate
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Biodegradable (compost)
Industrially compostable
Recycling Code
7 (Other)
7
Carbon Footprint
Lower than petrochemical plastics
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %