Comparison
PVDC Barrier Film vs PEEK
A side-by-side comparison of Polyvinylidene Chloride for Barrier Films and Polyether Ether Ketone.
Physical
Density
1.6-1.7 g/cm³
1.32 g/cm³
Water Absorption (24h)
<0.2 %
0.15 %
Transparency
Good
Opaque (amber)
Shrinkage
0.3-0.6 %
1.1 – 1.4 %
Mechanical
Young's Modulus
1.0-1.5 GPa
3.6 GPa
Tensile Strength
30-50 MPa
100 MPa
Elongation at Break
10-40 %
50 %
Impact Strength (Izod)
20-40 J/m
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
70-80 °C
143 °C
Melting Point
N/A (degrades)
343 °C
Continuous Service Temperature
50-60 °C
260 °C
Heat Deflection Temperature
50-60 °C
160 °C
Electrical
Dielectric Constant
3.5-4.5
3.2
Volume Resistivity
10¹⁰-10¹² Ω⋅cm
10¹⁶ Ω·cm
Dielectric Strength
10-20 kV/mm
—
Chemical resistance
Acids
Good resistance
Excellent
Bases
Good resistance
Excellent
Solvents
Insoluble in most common solvents
Excellent
UV Resistance
Fair (requires formulation)
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Challenging due to multilayer structures
Recyclable (specialty)
Recycling Code
3 (PVC) or depends on multilayer
7
Carbon Footprint
Moderate to High
~30 kg CO₂e / kg