Preparation and characterization of LDPE/PVA blend films filled with glycerin-plasticized polyvinyl alcohol

Dowan Kim, Jeyoung Jung, Su Il Park, Jongchul Seo

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A series of LDPE/PVA blend films were prepared via a twin-screw extruder, and their morphology, thermal property, oxygen and water vapor permeation, surface properties, and mechanical properties were investigated as a function of the PVA content. During the extrusion process of the blend films, glycerin improved the compatibility and processing conditions between LDPE and PVA. The melting temperature (Tm), melting enthalpy (ΔHm), crystallinity (%), and thermal stability of the thermal decomposition temperature (T5%) of the LDPE/PVA blend films decreased with increasing PVA content. The oxygen permeabilities of the blend films decreased from 24.0 to 11.4 cm3·cm (m2·day·atm)-1 at 23°C. The WVTR increased from 7.8 to 15.0 g(m2 day)-1 and the water uptake increased from 0.13 to 9.31%, respectively. The mechanical properties of blend films were slightly enhanced up to 2% PVA and then decreased. The physical properties of the blend films strongly varied with the chemical structure and morphology depending on the PVA and glycerin.

Original languageEnglish
Article number41985
JournalJournal of Applied Polymer Science
Volume132
Issue number22
DOIs
Publication statusPublished - 2015 Jun 1

Fingerprint

Polyvinyl Alcohol
Polyvinyl alcohols
Low density polyethylenes
Polyethylene
Glycerol
Oxygen
Mechanical properties
Steam
Extruders
Permeation
Water vapor
Surface properties
Extrusion
Melting point
Enthalpy
Melting
Pyrolysis
Thermodynamic stability
Thermodynamic properties
Physical properties

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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abstract = "A series of LDPE/PVA blend films were prepared via a twin-screw extruder, and their morphology, thermal property, oxygen and water vapor permeation, surface properties, and mechanical properties were investigated as a function of the PVA content. During the extrusion process of the blend films, glycerin improved the compatibility and processing conditions between LDPE and PVA. The melting temperature (Tm), melting enthalpy (ΔHm), crystallinity ({\%}), and thermal stability of the thermal decomposition temperature (T5{\%}) of the LDPE/PVA blend films decreased with increasing PVA content. The oxygen permeabilities of the blend films decreased from 24.0 to 11.4 cm3·cm (m2·day·atm)-1 at 23°C. The WVTR increased from 7.8 to 15.0 g(m2 day)-1 and the water uptake increased from 0.13 to 9.31{\%}, respectively. The mechanical properties of blend films were slightly enhanced up to 2{\%} PVA and then decreased. The physical properties of the blend films strongly varied with the chemical structure and morphology depending on the PVA and glycerin.",
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Preparation and characterization of LDPE/PVA blend films filled with glycerin-plasticized polyvinyl alcohol. / Kim, Dowan; Jung, Jeyoung; Park, Su Il; Seo, Jongchul.

In: Journal of Applied Polymer Science, Vol. 132, No. 22, 41985, 01.06.2015.

Research output: Contribution to journalArticle

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