Comparison
Ocean-Bound PP Regrind vs PLA
A side-by-side comparison of Ocean-Bound Polypropylene Regrind 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
1.2-1.6 GPa
3.5 GPa
Tensile Strength
25-40 MPa
50 – 65 MPa
Elongation at Break
5-25 %
6 %
Impact Strength (Izod)
15-35 J/m
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
-5 °C
60 °C
Melting Point
155-165 °C
150 – 160 °C
Continuous Service Temperature
70-90 °C
45 °C
Heat Deflection Temperature
50-70 °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
Fair resistance
—
UV Resistance
Poor (requires stabilizers)
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Recyclable
Industrially compostable
Recycling Code
5 (PP)
7
Carbon Footprint
Significantly lower than virgin PP, with added environmental benefit
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %