Highly-enhanced water resistant and oxygen barrier properties of cross-linked poly(vinyl alcohol) hybrid films for packaging applications

Mijin Lim, Hyok Kwon, Dowan Kim, Jongchul Seo, Haksoo Han, Sher Bahadar Khan

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

To enhance the thermal stability and barrier properties of pure poly(vinyl alcohol) (PVA), five different cross-linked poly(vinyl alcohol)/boric acid (PVA/BA) hybrid films were prepared via a solution blending method, and their properties including barrier properties, thermal stability, transparency, and mechanical properties were investigated as a function of the BA content. The physical properties of the PVA/BA hybrid films were strongly dependent upon the chemical structure and morphology of the films originating from the amount of BA and change in degree of cross-linking. With increasing BA content, the size and amount of PVA crystallites decreased, whereas the cross-linking density increased, resulting in more compact packing of the molecules and lower free volume in the amorphous regions. The glass transition temperature and thermal stability were highly enhanced with increasing BA content. The oxygen transmission rate (OTR) of pure PVA decreased from 5.96 to 0.15 cc/m2 day with increasing BA content and were greatly suppressed by 22.8% for 1% BA, 7.7% for 3% BA, and 2.5% for 3% BA, respectively, relative to pure PVA film. With increasing BA content, their water-resistant pressure and tensile strength increased with BA loading. All the hybrid films showed good transparency. These properties of the cross-linked PVA/BA hybrid films make them potential candidates for versatile applications as coatings, films, and packaging materials.

Original languageEnglish
Pages (from-to)68-75
Number of pages8
JournalProgress in Organic Coatings
Volume85
DOIs
Publication statusPublished - 2015 Aug 1

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Packaging
Alcohols
Oxygen
Water
Boric acid
Thermodynamic stability
Transparency
Packaging materials
Free volume
Crystallites
Water content
Tensile strength
Physical properties
Coatings
Mechanical properties
Molecules
boric acid

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Surfaces, Coatings and Films
  • Organic Chemistry
  • Materials Chemistry

Cite this

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abstract = "To enhance the thermal stability and barrier properties of pure poly(vinyl alcohol) (PVA), five different cross-linked poly(vinyl alcohol)/boric acid (PVA/BA) hybrid films were prepared via a solution blending method, and their properties including barrier properties, thermal stability, transparency, and mechanical properties were investigated as a function of the BA content. The physical properties of the PVA/BA hybrid films were strongly dependent upon the chemical structure and morphology of the films originating from the amount of BA and change in degree of cross-linking. With increasing BA content, the size and amount of PVA crystallites decreased, whereas the cross-linking density increased, resulting in more compact packing of the molecules and lower free volume in the amorphous regions. The glass transition temperature and thermal stability were highly enhanced with increasing BA content. The oxygen transmission rate (OTR) of pure PVA decreased from 5.96 to 0.15 cc/m2 day with increasing BA content and were greatly suppressed by 22.8{\%} for 1{\%} BA, 7.7{\%} for 3{\%} BA, and 2.5{\%} for 3{\%} BA, respectively, relative to pure PVA film. With increasing BA content, their water-resistant pressure and tensile strength increased with BA loading. All the hybrid films showed good transparency. These properties of the cross-linked PVA/BA hybrid films make them potential candidates for versatile applications as coatings, films, and packaging materials.",
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Highly-enhanced water resistant and oxygen barrier properties of cross-linked poly(vinyl alcohol) hybrid films for packaging applications. / Lim, Mijin; Kwon, Hyok; Kim, Dowan; Seo, Jongchul; Han, Haksoo; Khan, Sher Bahadar.

In: Progress in Organic Coatings, Vol. 85, 01.08.2015, p. 68-75.

Research output: Contribution to journalArticle

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