The BioActiveLayer project plan was to enhance the novel paper-based, bio-degradable, multi-layer structure properties. The main moisture barrier improvement will rely on a composite based in PHA. Currently PHA lacks the barrier required for MAP applications; therefore, composites with mineral fillers and oxygen barrier materials will be developed to obtain a moisture barrier layer.
The paper properties was enhanced following a three step approach.
- To increase the paper moisture barrier through the application of blends of waxes and resins.
- The moisture barrier improvement was derived from a newly formed composite based on Polyhydroxyalkanoates (PHAs). Existing standards of PHA lack the standard of barrier required for MAP applications. Therefore, BioActiveLayer identified suitable mineral fillers which can maintain the required moisture barrier layer.
- Oxygen barrier materials were improved through the use of oxygen scavenging compounds.