Comparison
rPP Homo PCR Natural vs PLA
A side-by-side comparison of Recycled Polypropylene Homopolymer Post-Consumer Recycled Natural and Polylactic Acid.
Physical
Density
0.900-0.915 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.02-0.05 %
0.5 %
Transparency
Opaque
Semi-transparent
Shrinkage
1.5-3.0 %
0.3 – 0.5 %
Mechanical
Young's Modulus
1.3-1.7 GPa
3.5 GPa
Tensile Strength
30-45 MPa
50 – 65 MPa
Elongation at Break
5-20 %
6 %
Impact Strength (Izod)
20-40 J/m
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
-5 °C
60 °C
Melting Point
160-170 °C
150 – 160 °C
Continuous Service Temperature
80-100 °C
45 °C
Heat Deflection Temperature
60-80 °C (0.45 MPa)
55 °C
Electrical
Dielectric Constant
2.2-2.3
3.0
Volume Resistivity
>10^16 Ohm·cm
10¹⁴ Ω·cm
Dielectric Strength
20-30 kV/mm
—
Chemical resistance
Acids
Good
Fair
Bases
Good
Poor
Solvents
Good resistance to many organic solvents
—
UV Resistance
Poor (requires UV stabilizers)
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Highly Recyclable
Industrially compostable
Recycling Code
5 (PP)
7
Carbon Footprint
Lower than virgin PP homopolymer
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %