Biobased Multilayer Flexible Packaging with Enhanced Gas Barrier Properties due to Cellulose Nanocrystals (CNCs)

In this study, a transparent trilayer film was successfully fabricated using blade coating and hot roll lamination techniques, comprising outer layers of polylactic acid (PLA) and an inner layer of a highly shear-oriented cellulose nanocrystal (CNC)/poly(vinyl alcohol) (PVA). The CNC/PVA coating, with a thickness ranging from 5 to 6 μm and exhibiting a high degree of CNC alignment, significantly enhanced the oxygen and carbon dioxide barrier properties, surpassing PLA by several hundred-fold. Furthermore, these laminates were formed into bags, where a fruit storage test showed that PLA-CNC/PVA–PLA could extend the shelf life of fresh apple slices based on weight loss and enzymatic browning. This research showcases the potential of CNC-based coatings integrated with biodegradable polymer films to produce high-performance packaging materials, offering a promising, scalable process.

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Institutions

Publication Details

Journal
ACS Applied Polymer Materials
Published
2025-05-29
DOI
https://doi.org/10.1021/acsapm.4c03954
Citations
1
Primary Topic
Advanced Cellulose Research Studies
Type
article
Field-Weighted Citation Impact
0.60

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article

Biobased Multilayer Flexible Packaging with Enhanced Gas Barrier Properties due to Cellulose Nanocrystals (CNCs)

Nicole M. Stark, Akshat Verma, Chelsea S. Davis, Jeffrey P. Youngblood et al.
1 citations
ACS Applied Polymer Materials
Advanced Cellulose Research Studies
0.60
article

Biobased Multilayer Flexible Packaging with Enhanced Gas Barrier Properties due to Cellulose Nanocrystals (CNCs)

Nicole M. Stark, Akshat Verma, Chelsea S. Davis, Jeffrey P. Youngblood, Darien Anders Dewar, Nazmul Haque, Yirou Wang, Jingxuan Zhang, Ronaldo Franjul
article en
1 citations

Abstract

In this study, a transparent trilayer film was successfully fabricated using blade coating and hot roll lamination techniques, comprising outer layers of polylactic acid (PLA) and an inner layer of a highly shear-oriented cellulose nanocrystal (CNC)/poly(vinyl alcohol) (PVA). The CNC/PVA coating, with a thickness ranging from 5 to 6 μm and exhibiting a high degree of CNC alignment, significantly enhanced the oxygen and carbon dioxide barrier properties, surpassing PLA by several hundred-fold. Furthermore, these laminates were formed into bags, where a fruit storage test showed that PLA-CNC/PVA–PLA could extend the shelf life of fresh apple slices based on weight loss and enzymatic browning. This research showcases the potential of CNC-based coatings integrated with biodegradable polymer films to produce high-performance packaging materials, offering a promising, scalable process.

ACS Applied Polymer MaterialsVol. 7(11)
United States Department of Agriculture (US), Purdue University West Lafayette (US), Forest Products Laboratory (US), University of Delaware (US)
Purdue Research Foundation, U.S. Endowment for Forestry and Communities, Advanced Research Projects Agency - Energy, Strategic Environmental Research and Development Program, Environmental Security Technology Certification Program
Affordable and clean energy
Openalex Percentile: Top 33%
Advanced Cellulose Research Studies
0.60
DOISourceOpenAlex
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