Surface modification of polylactic acid using a photo-activated chlorine dioxide process: surface properties and dissimilar adhesion

Haruyasu Asahara; Weiting Wu; Taka Aki Asoh; Yu I. Hsu; Tsuyoshi Inoue; Hiroshi Uyama

doi:10.1039/d4ma01275e

Surface modification of polylactic acid using a photo-activated chlorine dioxide process: surface properties and dissimilar adhesion

Haruyasu Asahara, Weiting Wu, Taka Aki Asoh, Yu I. Hsu, Tsuyoshi Inoue, Hiroshi Uyama

Department of Materials Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

In this study, we examined the modification of polylactic acid (PLA) plates and powders using a photo-activated chlorine dioxide (ClO₂˙) treatment. Changes in the degree of oxidation depending on the oxidation conditions, namely, temperature and time, were determined by surface elemental analysis using X-ray photoelectron spectroscopy and quantification of the number of carboxy groups using toluidine blue O staining. Oxidized PLA exhibited excellent adhesion to dissimilar materials, including aluminum and cellulose. In the adhesion to aluminum, the relationship between the adhesion strength and oxidation degree was investigated.

Original language	English
Pages (from-to)	1608-1612
Number of pages	5
Journal	Materials Advances
Volume	6
Issue number	5
DOIs	https://doi.org/10.1039/d4ma01275e
Publication status	Published - 12 Feb 2025

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abstract = "In this study, we examined the modification of polylactic acid (PLA) plates and powders using a photo-activated chlorine dioxide (ClO2˙) treatment. Changes in the degree of oxidation depending on the oxidation conditions, namely, temperature and time, were determined by surface elemental analysis using X-ray photoelectron spectroscopy and quantification of the number of carboxy groups using toluidine blue O staining. Oxidized PLA exhibited excellent adhesion to dissimilar materials, including aluminum and cellulose. In the adhesion to aluminum, the relationship between the adhesion strength and oxidation degree was investigated.",

author = "Haruyasu Asahara and Weiting Wu and Asoh, {Taka Aki} and Hsu, {Yu I.} and Tsuyoshi Inoue and Hiroshi Uyama",

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T2 - surface properties and dissimilar adhesion

AU - Asahara, Haruyasu

AU - Wu, Weiting

AU - Asoh, Taka Aki

AU - Hsu, Yu I.

AU - Inoue, Tsuyoshi

AU - Uyama, Hiroshi

PY - 2025/2/12

Y1 - 2025/2/12

N2 - In this study, we examined the modification of polylactic acid (PLA) plates and powders using a photo-activated chlorine dioxide (ClO2˙) treatment. Changes in the degree of oxidation depending on the oxidation conditions, namely, temperature and time, were determined by surface elemental analysis using X-ray photoelectron spectroscopy and quantification of the number of carboxy groups using toluidine blue O staining. Oxidized PLA exhibited excellent adhesion to dissimilar materials, including aluminum and cellulose. In the adhesion to aluminum, the relationship between the adhesion strength and oxidation degree was investigated.

AB - In this study, we examined the modification of polylactic acid (PLA) plates and powders using a photo-activated chlorine dioxide (ClO2˙) treatment. Changes in the degree of oxidation depending on the oxidation conditions, namely, temperature and time, were determined by surface elemental analysis using X-ray photoelectron spectroscopy and quantification of the number of carboxy groups using toluidine blue O staining. Oxidized PLA exhibited excellent adhesion to dissimilar materials, including aluminum and cellulose. In the adhesion to aluminum, the relationship between the adhesion strength and oxidation degree was investigated.

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U2 - 10.1039/d4ma01275e

DO - 10.1039/d4ma01275e

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SP - 1608

EP - 1612

JO - Materials Advances

JF - Materials Advances

IS - 5

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Surface modification of polylactic acid using a photo-activated chlorine dioxide process: surface properties and dissimilar adhesion

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