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http://dx.doi.org/10.12772/TSE.2019.56.193

Photo-oxidation of Poly(butylene adipate-co-terephthalate) Film Using UV/Ozone Irradiation  

Lee, Duck-Hoon (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Kim, Yeon-Woo (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Jung, Jin-Young (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Yoo, Min-Hyung (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Jang, Jinho (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Publication Information
Textile Science and Engineering / v.56, no.4, 2019 , pp. 193-197 More about this Journal
Abstract
Biodegradable poly(butylene adipate-co-terephthalate) (PBAT) film was modified by UV/ozone irradiation. The surface properties of the irradiated PBAT were characterized by surface roughness, contact angles, ESCA, and ATR analyses. The UV/ozone treatment uniformly roughened the film surface, where the maximum surface roughness of the unirradiated sample increased from 74 nm to 239 nm with UV energy of $15.9J/cm^2$. The modified PBAT became more hydrophilic as indicated by lower water contact angles of $10^{\circ}$ compared to the $72^{\circ}$ of the unirradiated PBAT. In addition, surface energy increased from $44.8mJ/m^2$ for the unirradiated PBAT to $50.1mJ/m^2$ with a larger UV energy of up to $15.9J/cm^2$. In addition, the improvement in hydrophilicity was caused by the introduction of polar groups containing oxygen bonds such as C-O and C=O resulting in higher O1s/C1s, which in turn resulted in a higher dyeability of the modified film to a cationic dye. The increased dyeability may have resulted from the photochemically introduced anionic and dipolar dyeing sites on the photo-oxidized PBAT surface.
Keywords
PBAT; surface modification; $UV/O_3$ irradiation; hydrophilicity; dyeability;
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Times Cited By KSCI : 2  (Citation Analysis)
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