Abstract
Since the plastic-based multilayer films applied to food packaging are not recyclable, it is necessary to develop easily recyclable single materials. Herein, polypropylene (PP)-based cellulose nanofiber (CNF)/nanoclay nanocomposites were prepared by melt-mixing using a fixed CNF content of 1 wt %, while the nanoclay content varied from 1 to 5 wt %. The optimum nanoclay content in the PP matrix was found to be 3 wt % (PCN3), while they exhibited synergistic effects as a nucleating agent. PCN3 exhibited the best mechanical properties, and the tensile and flexural moduli were improved by 51% and 26%, respectively, compared to PP. In addition, the oxygen permeability was reduced by 28%, while maintaining the excellent water vapor permeability of PP. The improvement in the mechanical and barrier properties of PP through the production of PP/CNF/nanoclay hybrid nanocomposites suggested their possible application in the field of food packaging.
| Original language | English |
|---|---|
| Article number | 2399 |
| Pages (from-to) | 1-15 |
| Number of pages | 15 |
| Journal | Polymers |
| Volume | 12 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2020 Oct |
Bibliographical note
Funding Information:Funding: This work was supported by Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry (IPET) through High Value-added Food Technology Development Program, funded by Ministry of Agriculture, Food and Rural Affairs (MAFRA) in South Korea (Project number: 318089-03).
Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords
- Hybrid
- Nanocomposites
- Physical properties
- Polymer-matrix composites (PCM)
ASJC Scopus subject areas
- General Chemistry
- Polymers and Plastics
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