+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Characterization of bacterial cellulose films combined with chitosan and polyvinyl alcohol: Evaluation of mechanical and barrier properties



Characterization of bacterial cellulose films combined with chitosan and polyvinyl alcohol: Evaluation of mechanical and barrier properties



Carbohydrate Polymers 216: 72-85



Bacterial cellulose (BC) produced by Komagataeibacter xylinus is a biomaterial with a unique three-dimensional structure. To improve the mechanical properties and reinforce the BC films, they were immersed in polyvinyl alcohol (0-4%) and chitosan (0-1%) baths. Moisture content, mechanical properties and water vapour permeability were measured to assess the effect of polyvinyl alcohol and chitosan. The morphology, optical, structural and thermal properties were evaluated by scanning electron microscopy, spectral analysis, thermogravimetry and differential scanning calorimetry. Results showed that moisture content was significantly affected by the chitosan presence. Tensile strength values in the 20.76-41.65 MPa range were similar to those of synthetic polymer films. Percentage of elongation ranged from 2.28 to 21.82% and Young's modulus ranged from 1043.88 to 2247.82 MPa. The water vapour permeability (1.47 × 10-11-3.40 × 10-11 g/m s Pa) decreased with the addition of polyvinyl alcohol. The developed films own UV light barrier properties and optimal visual appearance.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 066746651

Download citation: RISBibTeXText

PMID: 31047084

DOI: 10.1016/j.carbpol.2019.03.093


Related references

Composite films of regenerate cellulose with chitosan and polyvinyl alcohol: Evaluation of water adsorption, mechanical and optical properties. International Journal of Biological Macromolecules 117: 235-246, 2018

Cellulose-glycerol-polyvinyl alcohol composite films for food packaging: Evaluation of water adsorption, mechanical properties, light-barrier properties and transparency. Carbohydrate Polymers 195: 432-443, 2018

Preparation and Characterization of Polyvinyl Alcohol-Chitosan Composite Films Reinforced with Cellulose Nanofiber. Materials 9(8):, 2016

Mechanical and barrier properties of nanocrystalline cellulose reinforced chitosan based nanocomposite films. Carbohydrate Polymers 90(4): 1601-1608, 2012

Transparent bionanocomposite films based on chitosan and TEMPO-oxidized cellulose nanofibers with enhanced mechanical and barrier properties. Carbohydrate Polymers 151: 779-789, 2016

Evaluation of permeability and mechanical properties of composite polyvinyl alcohol films. Chemical & Pharmaceutical Bulletin 47(10): 1412-1416, 1999

Development of polyvinyl alcohol/chitosan bio-nanocomposite films reinforced with cellulose nanocrystals isolated from rice straw. Applied Surface Science 449: 591-602, 2018

Antimicrobial Ag-Polyvinyl Alcohol-Bacterial Cellulose Composite Films. Journal of Biobased Materials and Bioenergy 7(1): 157-162, 2013

Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly(vinyl alcohol)/chitosan blend films: fabrication, characterization and properties. International Journal of Molecular Sciences 15(6): 11040-11053, 2014

Vanillin release from polyvinyl alcohol-bacterial cellulose mono and multilayer films. Journal of Food Engineering 114(2), 2013

Properties and sorption studies of chitosan-polyvinyl alcohol blend films. Carbohydrate Polymers 53(4): 431-438, 1 September, 2003

Influence of chitosan concentration on mechanical and barrier properties of corn starch/chitosan films. International Journal of Biological Macromolecules 105(Pt 3): 1636-1643, 2017

Chitosan and polyvinyl alcohol composite films containing nitrofurazone: preparation and evaluation. Iranian Journal of Basic Medical Sciences 17(1): 14-20, 2014

Effect of molecular weight of chitosan on antimicrobial properties and tissue compatibility of chitosan-impregnated bacterial cellulose films. Biotechnology and Bioprocess Engineering 19(3): 534-544, 2014

Synthesis, characterization, and in vitro studies of graphene oxide/chitosan-polyvinyl alcohol films. Carbohydrate Polymers 102: 813-820, 2014