Comparison
rPP Homo PCR Black vs PA66
A side-by-side comparison of Recycled Polypropylene Homopolymer Post-Consumer Recycled Black and Polyamide 6,6 (Nylon).
Physical
Density
0.900-0.915 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.02-0.05 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
1.5-3.0 %
1.5 – 2.0 %
Mechanical
Young's Modulus
1.3-1.7 GPa
3.0 GPa (dry)
Tensile Strength
30-45 MPa
80 MPa
Elongation at Break
5-20 %
60 %
Impact Strength (Izod)
20-40 J/m
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-5 °C
70 °C
Melting Point
160-170 °C
255 – 265 °C
Continuous Service Temperature
80-100 °C
100 – 120 °C
Heat Deflection Temperature
60-80 °C (0.45 MPa)
75 °C (unfilled)
Electrical
Dielectric Constant
2.2-2.3
4.0
Volume Resistivity
>10^16 Ohm·cm
10¹² Ω·cm
Dielectric Strength
20-30 kV/mm
—
Chemical resistance
Acids
Good
Poor
Bases
Good
Good
Solvents
Good resistance to many organic solvents
—
UV Resistance
Poor (requires UV stabilizers)
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Highly Recyclable
Recyclable
Recycling Code
5 (PP)
7
Carbon Footprint
Lower than virgin PP homopolymer
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)