Comparison
Bismaleimide for High Performance vs PLA
A side-by-side comparison of Bismaleimide Resin and Polylactic Acid.
Physical
Density
1.20-1.35 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.2-0.5 %
0.5 %
Transparency
Amber to Brown
Semi-transparent
Shrinkage
1-2 %
0.3 – 0.5 %
Mechanical
Young's Modulus
3.5-5.0 GPa
3.5 GPa
Tensile Strength
70-100 MPa
50 – 65 MPa
Elongation at Break
2-5 %
6 %
Impact Strength (Izod)
10-25 J/m
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
200-280 °C
60 °C
Melting Point
N/A
150 – 160 °C
Continuous Service Temperature
180-250 °C
45 °C
Heat Deflection Temperature
180-240 °C
55 °C
Electrical
Dielectric Constant
3.0-3.8
3.0
Volume Resistivity
10^14-10^16 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
18-26 kV/mm
—
Chemical resistance
Acids
Good resistance
Fair
Bases
Moderate resistance
Poor
Solvents
Resistant to many organic solvents
—
UV Resistance
Moderate
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Difficult
Industrially compostable
Recycling Code
N/A
7
Carbon Footprint
High
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %