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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.19 [2012] >
IJEMS Vol.19(1) [February 2012] >
| Title: | Preparation and properties of linear low density polyethylene based nanocomposite films for food packaging |
| Authors: | Manikantan, M R
Varadharaju, N |
| Keywords: | Nanoclay
Compatibilizer
LLDPE
OTR
WVTR
Tensile strength |
| Issue Date: | Feb-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Packaging
of foods in high barrier and strong materials is essential to attain food
safety, and nanocomposite technology leads in search of the above kind of
packaging material. The effect of compatibilizer, nanoclay and thickness of
film on morphology, oxygen transmission rate (OTR), water vapor transmission
rate (WVTR), tensile strength and percent elongation of linear low density
polyethylene (LLDPE)-based nanocomposite films are studied using response
surface methodology. The maximum reduction in OTR and WVTR over the control (0%
compatibilizaer, 0% nanoclay and 100 µm film thickness) is 24.7% and 64.9%,
respectively in the treatment having 5% compatibilizer, 2% nanoclay and 100 µm
thickness. The regression models are developed for the prediction of OTR and
WVTR. The maximum increase in the tensile strength and percent elongation over
the control (0% compatibilizaer, 0% nanoclay and 100 µm film thickness) is 54%
and 7.64%, respectively. Treatment having 5% compatibilizer, 2% nanoclay and
100 µm thickness of nanocomposite films showed better morphological, barrier
and strength characteristics than other treatments. This paper helps to design
the packaging films according to the requirement of foods to be stored using
the developed regression models. |
| Page(s): | 54-66 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.19(1) [February 2012]
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