Comparison
Low Dielectric Cyanate Ester vs PLA
A side-by-side comparison of Cyanate Ester Resin and Polylactic Acid.
Physical
Density
1.15-1.25 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.1-0.3 %
0.5 %
Transparency
Clear to Light Amber
Semi-transparent
Shrinkage
1-2 %
0.3 – 0.5 %
Mechanical
Young's Modulus
3.0-4.0 GPa
3.5 GPa
Tensile Strength
60-90 MPa
50 – 65 MPa
Elongation at Break
3-6 %
6 %
Impact Strength (Izod)
15-25 J/m
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
180-250 °C
60 °C
Melting Point
N/A
150 – 160 °C
Continuous Service Temperature
150-220 °C
45 °C
Heat Deflection Temperature
160-230 °C
55 °C
Electrical
Dielectric Constant
2.8-3.2
3.0
Volume Resistivity
10^15-10^17 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
20-28 kV/mm
—
Chemical resistance
Acids
Good resistance
Fair
Bases
Good resistance
Poor
Solvents
Resistant to most 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 %