Comparison
Glass-Filled PPS vs PA66
A side-by-side comparison of Polyphenylene Sulfide, Glass Fiber Reinforced and Polyamide 6,6 (Nylon).
Physical
Density
1.60-1.70 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.01-0.05 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
0.2-0.5 %
1.5 – 2.0 %
Mechanical
Young's Modulus
12-15 GPa
3.0 GPa (dry)
Tensile Strength
80-120 MPa
80 MPa
Elongation at Break
2-5 %
60 %
Impact Strength (Izod)
5-10 kJ/m
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
100-120 °C
70 °C
Melting Point
275-285 °C
255 – 265 °C
Continuous Service Temperature
200-240 °C
100 – 120 °C
Heat Deflection Temperature
250-270 °C (1.8 MPa)
75 °C (unfilled)
Electrical
Dielectric Constant
3.0-3.5
4.0
Volume Resistivity
10^12-10^14 Ohm-cm
10¹² Ω·cm
Dielectric Strength
15-20 kV/mm
—
Chemical resistance
Acids
Excellent
Poor
Bases
Excellent
Good
Solvents
Excellent
—
UV Resistance
Good
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Recyclable (difficult processing)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
High
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)