Biodegradable High-Barrier Polyester-Based Multilayer Packaging (MLP) For Home and Industrial Compostability
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EmailPolyester-dominant biodegradable multilayer architecture incorporating biodegradable barrier and tie layers to achieve oxygen and moisture barrier performance while maintaining home and industrial compostability.
Summary:
Polyester-dominant biodegradable multilayer architecture incorporating biodegradable barrier and tie layers to achieve oxygen and moisture barrier performance while maintaining home and industrial compostability.
Layer architecture:
- Structure: Polyester (print) / Tie layer / Barrier layer / Tie layer / Polyester sealant
- Total gauge: 90 µm
- Composition (wt%): Polyester 82%, biodegradable barrier layer 10%, biodegradable tie layer 8%
Barrier:
- OTR (ASTM D3985): <6 cc/m²/day @ 23°C / 90% RH
- WVTR (ASTM F1249): <6 g/m²/day @ 38°C / 90% RH
Mechanical properties:
- Tensile (D882): 60 MPa
- Elongation: >100%
EoL:
- Biodegradable (home and industrially compostable)
Applications:
- Flexible high barrier packaging
- Rigid thermoform
Contact:
Developed by:
Sustainable Materials Group, Michigan State University (MSU)
