Abstract
A three-layer laminate fi lm was developed with the following structure: polyethylene terephthalate (PET)/fi sh gelatin (FG)-nanoclay composite/low-density polyethylene (LDPE). The FG-nanoclay composite material functioned as the oxygen barrier layer and demonstrated comparable oxygen barrier properties when compared with a similar laminate utilizing ethylene vinyl alcohol as the barrier layer at a relative humidity (RH) of up to 50%. The introduction of nanometersized fi ller clay into the FG matrix lowered the oxygen permeability (OP) because of the tortuosity effect of the clay particles. In addition, the FG-nanoclay composite fi lm exhibited bond strengths similar to both LDPE and PET. The hydrophilic nature of FG signifi cantly increases OP under high (>50%) RH conditions. However, this new FG laminate fi lm could be a possible alternative for packaging designers desiring a more sustainable packaging material for low-RH (<50%) applications.
Original language | English |
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Pages (from-to) | 371-383 |
Number of pages | 13 |
Journal | Packaging Technology and Science |
Volume | 22 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2009 Nov |
Keywords
- Fish gelatin
- Laminate
- Nanoclay
- Packaging
- Tortuosity
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Mechanical Engineering