Improved eco-friendly barrier materials based on crystalline nanocellulose/chitosan/carboxymethyl cellulose polyelectrolyte complexes

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13 Citations (Scopus)

Abstract

Sustainable, cost-effective and ecologically compatible materials derived from renewable natural resources have attracted a tremendous level of attention as replacements for a broad array of volume commercial materials based on petroleum-derived compounds. In the present study, we demonstrate ternary polysaccharide polyelectrolyte complex (PPC) materials consisting of crystalline nanocellulose (CNC), chitosan (CS) and carboxymethyl cellulose (CMC) produced via an immediate high-shear homogenization process. Ionically cross-linked CS and CMC behaved as the continuous matrix and CNC was incorporated as a nanoreinforcement. The developed PPC materials exhibited homogeneous, compact morphological features and enhanced mechanical and barrier properties, ascribed to the even distribution and good interfacial compatibility of CNC within the CS/CMC matrix. PPC films with 10 wt% CNC content showed tensile strength and Young's modulus of 60.6 MPa and 4.7 GPa, respectively, and water vapor transportation rate of 7982 g μm m−2 d−1. In addition, PPC composites containing <5 wt% CNC performed as an excellent barrier coating against liquid (grease, water and oil) penetration on the paperboard substrate. These results indicate the potential of PPC materials as eco-friendly, bio-based barrier films or coatings for packaging applications.

Original languageEnglish (US)
Pages (from-to)195-205
Number of pages11
JournalFood Hydrocolloids
Volume80
DOIs
StatePublished - Jul 2018

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Carboxymethylcellulose Sodium
carboxymethylcellulose
Chitosan
Polysaccharides
Polyelectrolytes
chitosan
Cellulose
polysaccharides
Crystalline materials
films (materials)
coatings
Transportation charges
paperboard
Coatings
Paperboards
Tensile Strength
Elastic Modulus
composite materials
Steam
Petroleum

All Science Journal Classification (ASJC) codes

  • Food Science
  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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title = "Improved eco-friendly barrier materials based on crystalline nanocellulose/chitosan/carboxymethyl cellulose polyelectrolyte complexes",
abstract = "Sustainable, cost-effective and ecologically compatible materials derived from renewable natural resources have attracted a tremendous level of attention as replacements for a broad array of volume commercial materials based on petroleum-derived compounds. In the present study, we demonstrate ternary polysaccharide polyelectrolyte complex (PPC) materials consisting of crystalline nanocellulose (CNC), chitosan (CS) and carboxymethyl cellulose (CMC) produced via an immediate high-shear homogenization process. Ionically cross-linked CS and CMC behaved as the continuous matrix and CNC was incorporated as a nanoreinforcement. The developed PPC materials exhibited homogeneous, compact morphological features and enhanced mechanical and barrier properties, ascribed to the even distribution and good interfacial compatibility of CNC within the CS/CMC matrix. PPC films with 10 wt{\%} CNC content showed tensile strength and Young's modulus of 60.6 MPa and 4.7 GPa, respectively, and water vapor transportation rate of 7982 g μm m−2 d−1. In addition, PPC composites containing <5 wt{\%} CNC performed as an excellent barrier coating against liquid (grease, water and oil) penetration on the paperboard substrate. These results indicate the potential of PPC materials as eco-friendly, bio-based barrier films or coatings for packaging applications.",
author = "Kai Chi and Catchmark, {Jeffrey M.}",
year = "2018",
month = "7",
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T1 - Improved eco-friendly barrier materials based on crystalline nanocellulose/chitosan/carboxymethyl cellulose polyelectrolyte complexes

AU - Chi, Kai

AU - Catchmark, Jeffrey M.

PY - 2018/7

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N2 - Sustainable, cost-effective and ecologically compatible materials derived from renewable natural resources have attracted a tremendous level of attention as replacements for a broad array of volume commercial materials based on petroleum-derived compounds. In the present study, we demonstrate ternary polysaccharide polyelectrolyte complex (PPC) materials consisting of crystalline nanocellulose (CNC), chitosan (CS) and carboxymethyl cellulose (CMC) produced via an immediate high-shear homogenization process. Ionically cross-linked CS and CMC behaved as the continuous matrix and CNC was incorporated as a nanoreinforcement. The developed PPC materials exhibited homogeneous, compact morphological features and enhanced mechanical and barrier properties, ascribed to the even distribution and good interfacial compatibility of CNC within the CS/CMC matrix. PPC films with 10 wt% CNC content showed tensile strength and Young's modulus of 60.6 MPa and 4.7 GPa, respectively, and water vapor transportation rate of 7982 g μm m−2 d−1. In addition, PPC composites containing <5 wt% CNC performed as an excellent barrier coating against liquid (grease, water and oil) penetration on the paperboard substrate. These results indicate the potential of PPC materials as eco-friendly, bio-based barrier films or coatings for packaging applications.

AB - Sustainable, cost-effective and ecologically compatible materials derived from renewable natural resources have attracted a tremendous level of attention as replacements for a broad array of volume commercial materials based on petroleum-derived compounds. In the present study, we demonstrate ternary polysaccharide polyelectrolyte complex (PPC) materials consisting of crystalline nanocellulose (CNC), chitosan (CS) and carboxymethyl cellulose (CMC) produced via an immediate high-shear homogenization process. Ionically cross-linked CS and CMC behaved as the continuous matrix and CNC was incorporated as a nanoreinforcement. The developed PPC materials exhibited homogeneous, compact morphological features and enhanced mechanical and barrier properties, ascribed to the even distribution and good interfacial compatibility of CNC within the CS/CMC matrix. PPC films with 10 wt% CNC content showed tensile strength and Young's modulus of 60.6 MPa and 4.7 GPa, respectively, and water vapor transportation rate of 7982 g μm m−2 d−1. In addition, PPC composites containing <5 wt% CNC performed as an excellent barrier coating against liquid (grease, water and oil) penetration on the paperboard substrate. These results indicate the potential of PPC materials as eco-friendly, bio-based barrier films or coatings for packaging applications.

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