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Aging of Polylactide Films Exposed to Plasma — Hydrophobic Recovery and Selected Application Properties

Izdebska-Podsiadły, Joanna ; Trokowska, Paula ; Dörsam, Edgar (2023)
Aging of Polylactide Films Exposed to Plasma — Hydrophobic Recovery and Selected Application Properties.
In: Applied Sciences, 2023, 13 (5)
doi: 10.26083/tuprints-00023342
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Item Type: Article
Type of entry: Secondary publication
Title: Aging of Polylactide Films Exposed to Plasma — Hydrophobic Recovery and Selected Application Properties
Language: English
Date: 10 November 2023
Place of Publication: Darmstadt
Year of primary publication: 2023
Place of primary publication: Basel
Publisher: MDPI
Journal or Publication Title: Applied Sciences
Volume of the journal: 13
Issue Number: 5
Collation: 16 Seiten
DOI: 10.26083/tuprints-00023342
Corresponding Links:
Origin: Secondary publication DeepGreen

In this study, the effect of polylactide (PLA) material on the susceptibility to hydrophobic recovery due to storage was examined, the effectiveness of plasma activation of the film, defined as improving the hydrophilicity of the material, was studied, and the selected film properties that are important from an application point of view were investigated. The study was conducted on three films using oxygen and argon plasma. Contact angles of water, diiodomethane, and ethylene glycol were investigated, and the values of surface free energy (SFE) and its polar and dispersive components were determined immediately after activation, as well as after a specified storage time (after 1, 7, 14, 30, and 60 days). The effects of film activation on its roughness, weight loss, tensile strength, color changes, and gloss were also determined. Based on the results, it was concluded that the type of film influences the course of hydrophobic recovery. At the same time, the trend of changes depends on the type of gas used for activation, while the magnitude of changes depends on the film. Moreover, it was observed that the type of PLA film had a significant effect on the changes in the polar and dispersion components of SFE, as well as on roughness and mass loss due to plasma activation. Furthermore, these parameters also depended on the type of gas used for plasma activation.

Uncontrolled Keywords: aging, hydrophobic recovery, storage time, biodegradable polymers, PLA films, plasma activation, argon plasma, oxygen plasma
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-233429
Additional Information:

This article belongs to the Special Issue Plasma Technology and Its Application

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Institute of Printing Science and Technology (IDD)
Date Deposited: 10 Nov 2023 15:37
Last Modified: 15 Nov 2023 13:08
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/23342
PPN: 513152466
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