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 language | English |
|---|---|
| Article number | 41985 |
| Journal | Journal of Applied Polymer Science |
| Volume | 132 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 2015 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry
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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 journal › Article
TY - JOUR
T1 - Preparation and characterization of LDPE/PVA blend films filled with glycerin-plasticized polyvinyl alcohol
AU - Kim, Dowan
AU - Jung, Jeyoung
AU - Park, Su Il
AU - Seo, Jongchul
PY - 2015/6/1
Y1 - 2015/6/1
N2 - 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.
AB - 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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U2 - 10.1002/app.41985
DO - 10.1002/app.41985
M3 - Article
AN - SCOPUS:84924496972
VL - 132
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 22
M1 - 41985
ER -