Abstract
Polymer layered silicate nanocomposites are prepared by
incorporating finely dispersed nanoclay in a polymer
matrix. There is need for sustainable solutions in
packaging industry for high-barrier food packages, which
are used in massive volumes. Therefore bio-based and
biodegradable PLA is selected as matrix polymer in this
study. Montmorillonite nanoclay has high aspect ratio and
unique intercalation/exfoliation potential and is
selected as the nanofiller to improve the barrier
properties of the film.
Dispersion of the plate shaped nanoparticles in the
polymer matrix is studied. Dispersion can be improved by
adjusting the compounding process parameters. Also some
compatibilizers are tested to generate the optimal
dispersion of the nanoclay.
The PLA nanocomposite film is biaxially oriented to
prepare a mechanically strong thin film having desired
barrier properties. The best orientation parameters for
the materials are searched and tested. Transparency and
oxygen permeability of the film is controlled by varying
the weight fraction of the nanoclay and its dispersion in
the polymer matrix.
| Original language | English |
|---|---|
| Publication status | Published - 2011 |
| MoE publication type | Not Eligible |
| Event | Nanocomposites 2011 - Creteil University, Paris-Est, France Duration: 7 Jun 2011 → 10 Jun 2011 |
Conference
| Conference | Nanocomposites 2011 |
|---|---|
| Country/Territory | France |
| City | Paris-Est |
| Period | 7/06/11 → 10/06/11 |
Keywords
- PLA film
- biaxial orientation
- nanocomposite
- barrier properties