Comparison
PPS GF40 vs PLA
A side-by-side comparison of Polyphenylene Sulfide, 40% Glass Fiber Reinforced and Polylactic Acid.
Physical
Density
1.60-1.70 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.01-0.05 %
0.5 %
Transparency
Opaque
Semi-transparent
Shrinkage
0.2-0.5 %
0.3 – 0.5 %
Mechanical
Young's Modulus
12-15 GPa
3.5 GPa
Tensile Strength
80-120 MPa
50 – 65 MPa
Elongation at Break
2-5 %
6 %
Impact Strength (Izod)
5-10 kJ/m
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
100-120 °C
60 °C
Melting Point
275-285 °C
150 – 160 °C
Continuous Service Temperature
200-240 °C
45 °C
Heat Deflection Temperature
250-270 °C (1.8 MPa)
55 °C
Electrical
Dielectric Constant
3.0-3.5
3.0
Volume Resistivity
10^12-10^14 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
15-20 kV/mm
—
Chemical resistance
Acids
Excellent
Fair
Bases
Excellent
Poor
Solvents
Excellent
—
UV Resistance
Good
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Recyclable (difficult processing)
Industrially compostable
Recycling Code
7 (Other)
7
Carbon Footprint
High
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %