Poly(vinyl-alcohol)/Chitosan Polymer Blend Films
Author Information
Author(s): Pugar Daniel, Haramina Tatjana, Leskovac Mirela, Ćurković Lidija
Primary Institution: Department of Polytechnic, Dr. Franjo Tuđman Defense and Security University, Croatia
Hypothesis
The addition of chitosan and glutaraldehyde will improve the mechanical and barrier properties of poly(vinyl-alcohol) films.
Conclusion
The study found that adding chitosan and glutaraldehyde improves the barrier properties of poly(vinyl-alcohol) films.
Supporting Evidence
- The addition of chitosan reduces the crystallinity of poly(vinyl-alcohol), leading to improved barrier properties.
- Crosslinking with glutaraldehyde enhances the mechanical properties of the polymer blend.
- Dynamic mechanical analysis showed that the addition of chitosan increases the intensity of α relaxation.
Takeaway
Mixing chitosan with poly(vinyl-alcohol) makes the material better at keeping gases out, which is good for packaging.
Methodology
The films were prepared using the solvent casting method and analyzed using dynamic mechanical analysis, differential scanning calorimetry, and the time-lag permeation technique.
Limitations
The study did not analyze pure chitosan due to its brittleness.
Digital Object Identifier (DOI)
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