Polyvinyl alcohol/alkyl ketene dimer films with excellent water resistance and water vapor barrier properties

[Display omitted] •A PVA film was modified using cost-effective and eco-friendly AKD.•The water absorption and solubility of the PVA/AKD films were low.•The water resistance of the PVA/AKD films was high.•The water vapor barrier properties of the PVA/AKD films were excellent. Polyvinyl alcohol (PVA)...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2022-01, Vol.307, p.131045, Article 131045
Main Authors: Nguyen, Son Van, Lee, Bong-Kee
Format: Article
Language:English
Subjects:
Alkyl ketene dimer
Biodegradability
Chemical treatment
Dimers
Food packaging
Materials science
Moisture resistance
Polyvinyl alcohol
Toxicity
Vapor resistance
Water absorption
Water resistance
Water vapor
Water vapor barrier properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •A PVA film was modified using cost-effective and eco-friendly AKD.•The water absorption and solubility of the PVA/AKD films were low.•The water resistance of the PVA/AKD films was high.•The water vapor barrier properties of the PVA/AKD films were excellent. Polyvinyl alcohol (PVA), a synthetic biodegradable polymer, is widely used in the packaging, textile, paper, and medical device industries. However, PVA presents critical limitations, such as poor water/moisture resistance and low water vapor barrier properties. Although chemical treatments have been used to overcome these problems, concerns about their toxicity still exist. Herein, alkyl ketene dimer (AKD), a non-toxic, cost-effective, and eco-friendly chemical, was used to improve the water resistance and water vapor barrier properties of PVA films. The water absorption and solubility of the PVA/AKD film with an AKD content of 10 wt% (PVA/AKD 10%) were 65.3 and 91.2% lower, respectively, than those of an untreated PVA film. In addition, the water vapor transmission rate of the PVA/AKD 10% film was found to be 58.1% of that of the untreated PVA film, indicating the superior water vapor barrier properties of the PVA/AKD film.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2021.131045