Surface characterisation of plasma-modified poly(ethylene terephthalate)

Almazán-Almazán, M.C.; Paredes, J.I.; Pérez-Mendoza, Manuel; Domingo-Garcı́a, M.; López-Garzón, F.J.; Martı́nez-Alonso, A.; Tascón, J.M.D.

doi:10.1016/j.jcis.2005.06.073

Cited by 51 publications

(41 citation statements)

References 68 publications

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“…35 Therefore, it was concluded that the wettability increase was due to the increase in the base parameter of the surface-free energy by the introduction of the oxygen-containing surface functional groups due to exposure to APP and UV. 12,29,[36][37][38] In fact, the increases in the wettability, the surface-free energy and the surface oxidation of the PET were remarkable after the APP treatment compared with the UV treatment.…”

Section: Surface Characteristics Of Pet Treated By Dry Processingmentioning

confidence: 97%

“…Typical physical modification techniques are plasma exposure and UV light radiation, and much basic and applied research on these dry processing techniques has been conducted in recent decades. [4][5][6][7][8][9][10][11][12] There are two theoretically different techniques for the generation of plasma under an atmospheric pressure: the direct plasma technique using dielectric barrier discharge and the remote plasma technique using after glow. 13 Compared with the direct plasma technique, the remote plasma technique cannot easily create a homogeneous plasma over a wide area.…”

Section: Introductionmentioning

confidence: 99%

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Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Gotoh

Yasukawa

Kobayashi

2011

Polym J

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Two dry processes, atmospheric pressure plasma (APP) exposure and 172 nm ultraviolet (UV) excimer light irradiation, were carried out to enhance the hydrophilic nature of poly(ethylene terephthalate) (PET) film. The wettability change in the PET film surface after the processes were carried out was recorded by the wetting force measurements employing the Wilhelmy method. After the dry processes, drastic decreases in the advancing and receding contact angles of water were observed, especially for the APP exposure. The advancing angle on the treated PET surface was found to increase by rinsing with water or aging in air, whereas the receding one remained almost the same. The hydrophobic recovery diminished more rapidly for the UV-treated film. Surface characterizations of the PET film were performed. We discuss the influence of the dry processes on the physicochemical properties of the PET surface.

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Section: Surface Characteristics Of Pet Treated By Dry Processingmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Gotoh

Yasukawa

Kobayashi

2011

Polym J

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“…Therefore, the modification and control of the surface properties of PET is a research topic for materials processing in the last decades. The oxidation and the etching of the PET surface have been attempt by the dry processes such as UV radiation [1][2][3][4][5][6] and plasma exposure [7][8][9][10], which produce no toxic or hazardous liquids from the treatment processes.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of PET films by atmospheric pressure plasma exposure with three reactive gas sources

et al. 2012

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The surface modification of poly (ethylene terephthalate) (PET) film was carried out using an atmospheric pressure plasma (APP) jet device with three reactive gases: air, N 2 , and Ar. The water contact angles on the PET film were found to decrease considerably after the APP exposure. The changes in the advancing and receding contact angles of water on the APP-exposed PET film with aging time were examined by the wetting force measurements employing the Wilhelmy method. The hydrophobic recovery due to the rinsing with water as well as the aging in air was observed only for the advancing angle, which was probably caused by the dissolution of low molecular weight oxidized materials into water, the loss of volatile oxidized species to the atmosphere and the reorientation and the migration of polymer chains. The wettability and the surface free energy of the APP-exposed PET film after diminishing hydrophobic recovery was sufficiently large compared with the untreated film. X-ray photoelectron spectroscopy confirmed that the PET film surface was oxidized due to the APP exposure. When N 2 gas was used for the APP exposure, the surface nitrogen concentration was found to increase with decreasing D. The surface oxygen concentration on the APP-exposed PET film was reduced by rinsing with water, in accordance with the hydrophobic recovery behavior. From atomic force microscopy, surface topographical change due to the APP exposure was observed. The changes in the PET surface properties due to the APP exposure as mentioned above were remarkable for using N 2 gas.

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“…This is subsequent to grafting antibacterial agents on to the activated surface of PETs. 3,4,18 However, the referred method has the complex procedures such as several steps of chemical treatments.…”

Section: Introductionmentioning

confidence: 99%

Preparation and antibacterial activity of PET/chitosan nanofibrous mats using an electrospinning technique

Jung

Huh

Meng

et al. 2007

J of Applied Polymer Sci

136

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ABSTRACT:The nanofiber deposition method, by electrospinning, was employed to introduce antibacterial activity and biocompatibility to the surface of poly (ethylene terephthalate) (PET) textiles. The polymer blends of PET and chitosan were electrospun on to the PET micro-nonwoven mats for biomedical applications. The PET/chitosan nanofibers were evenly deposited on to the surface, and the diameter of the nanofibers was in the range between 500 and 800 nm. The surface of the nanofibers was characterized using SEM, ESCA, AFM, and ATR-FTIR. The wettability of the PET nanofibers was significantly enhanced by the incorporation of chitosan. The antibacterial activity of the samples was evaluated utilizing the colony counting method against Staphylococcus aureus and Klebsiella pneumoniae. The results indicated that the PET/chitosan nanofiber mats showed a significantly higher growth inhibition rate compared with the PET nanofiber control. In addition, the fibroblast cells adhered better to the PET/chitosan nanofibers than to the PET nanofibers mats, suggesting better tissue compatibility.

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Surface characterisation of plasma-modified poly(ethylene terephthalate)

Cited by 51 publications

References 68 publications

Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Wettability characteristics of poly(ethylene terephthalate) films treated by atmospheric pressure plasma and ultraviolet excimer light

Surface modification of PET films by atmospheric pressure plasma exposure with three reactive gas sources

Preparation and antibacterial activity of PET/chitosan nanofibrous mats using an electrospinning technique

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