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

Gotoh, Kunihito; Kobayashi, Yasuyuki; Yasukawa, Akemi; Ishigami, Yuki

doi:10.1007/s00396-012-2600-7

Cited by 55 publications

(41 citation statements)

References 46 publications

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“…1 shows advancing and receding contact angles of water on the fibers immediately after the APP treatment as a function of the distance from the nozzle jet to the fabric, D. For all fibers, both contact angles were dependent on D, and the minimum contact angle, the maximum wettability, was obtained at D = 5 mm. In the previous paper [44], similar results were obtained for the poly (ethylene terephthalate) film that was cut off to a fine strip. The PET film was often deformed for D<5 mm because of partial melting at high temperature.…”

Section: Evaluation Of Detergencysupporting

confidence: 72%

Textile Performance of Polyester, Nylon 6 and Acetate Fabrics Treated with Atmospheric Pressure Plasma Jet

et al. 2013

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In general, synthetic textiles have many advantages of high modulus and strength, stiffness, stretch, wrinkle and abrasion resistances, relatively low cost, convenient processability, tailorable performance and easy recycling [1,2]. On the other hand, they have low wettability because of inherently hydrophobicity, which leads to less wearing comfort, low color strength, build-up of electrostatic charge, the tendency to pilling and insufficient washability [2,3]. Because of these disadvantages, surface modification to enhance hydrophilicity has been carried out by conventional chemical modifications [4][5][6][7]. The chemical modification can improve textile-specific performance by altering its chemical structure due to a chemical reaction, such as esterification, grafting, and crosslinking. Therefore, large amounts of modifying agents and solvents are required, resulting in undesired high-cost drying and pollutanttreating steps [4,7]. As alternative environmentally friendly technology, dry gas-phase oxidation of synthetic fiber surfaces after processing has been recently attempted by ultraviolet light [8][9][10][11][12][13] and plasma [7,[14][15][16][17][18][19][20] technologies.Recently, we have carried out the surface oxidation of synthetic fibers by two dry processes in the atmosphere. Some synthetic textiles were treated by 172 nm ultraviolet (UV) excimer light irradiation [21]. As a result, the water absorbency for any fabric was enhanced because of the increase in single fiber wettability. Such a tendency was remarkable for polyester, which surface oxygen concentration and roughness much increased due to UV exposure compared with other synthetic fibers. The color strength after dyeing and the detergency by laundering were also improved after UV irradiation for the polyester fabric [22]. Moreover, we have applied atmospheric pressure plasma (APP) to polyester textile finishing. The APP jet device used has attracted significant attention, because they generate plasma plumes in open space, have no limitations on the sizes of the objects to be treated and can achieve continuous in-line material processing at high speed [23][24][25][26][27]. To obtain basic information on physicochemical properties of the treated surface, the PET film with geometric simplicity was chosen [28,29]. The increases in wettability and surface free energy were remarkable for the APP treatment in comparison with the UV treatment, which was not in contradiction with the results characterized by X-ray photoelectron spectroscopy. Using polyester fabric, it was confirmed that the APP jet treatment increased oxygen concentration and roughness Abstract: Three synthetic textiles, polyester, nylon 6 and acetate fabrics, were treated by atmospheric pressure plasma (APP) jet with nitrogen gas. From the contact angle measurements using a single fiber, the wettability and the base parameter of surface free energy of the three fibers were found to increase drastically after the APP treatment. X-ray photoelectron spectroscopy and atomic force micros...

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Section: Evaluation Of Detergencysupporting

confidence: 72%

Textile Performance of Polyester, Nylon 6 and Acetate Fabrics Treated with Atmospheric Pressure Plasma Jet

et al. 2013

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“…This finding is in an agreement with the XPS analysis that indicated a reduction of the surface oxygen content upon rinsing. The washed surfaces exhibit only small-size irregularities that are result from surface etching [38]. Table 3 shows the roughness of PE and PP after the plasma treatment alone and in the case of polymer treatment followed by sample washing.…”

Section: Surface Morphologymentioning

confidence: 99%

Surface modification of polymeric materials by cold atmospheric plasma jet

Kostov

Nishime

Castro

et al. 2014

Applied Surface Science

209

144

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In this work we report the surface modification of different engineering polymers, such as, polyethylene terephthalate (PET), polyethylene (PE) and polypropylene (PP) by an atmospheric pressure plasma jet (APPJ). It was operated with Ar gas using 10 kV, 37 kHz, sine wave as an excitation source. The aim of this study is to determine the optimal treatment conditions and also to compare the polymer surface modification induced by plasma jet with the one obtained by another atmospheric pressure plasma sourcethe dielectric barrier discharge (DBD). The samples were exposed to the plasma jet effluent using a scanning procedure, which allowed achieving a uniform surface modification. The wettability assessments of all polymers reveal that the treatment leads to reduction of more than 40• in the water contact angle (WCA). Changes in surface composition and chemical bonding were analyzed by x-ray photoelectron spectroscopy (XPS) and Fourier-Transformed Infrared spectroscopy (FTIR) that both detected incorporation of oxygen-related functional groups. Surface morphology of polymer samples was investigated by Atomic Force Microscopy (AFM) and an increase of polymer roughness after the APPJ treatment was found.The plasma-treated polymers exhibited hydrophobic recovery expressed in reduction of the O-content of the surface upon rinsing with water. This process was caused by the dissolution of low molecular weight oxidized materials (LMWOMs) formed on the surface as a result of the plasma exposure.

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“…The contact angle was measured 1 s after placing a 2-3 μL water drop on the substrates with and without the SA-LB film 18 . The measurements were repeated 6-10 times, and the standard deviations were within 10 .…”

Section: Contact Angle Measurementmentioning

confidence: 99%

“…To promote the removal in aqueous NaCl or SDS solution, the APP exposure to the QCM electrode with the SA-LB films was carried out using a commercial plasma pretreatment equipment Plasmatreat GmbH, Germany consisting of a plasma generator FG1001 , high-voltage transformer HTR1001 , and rotating nozzle jet RD1004 under optimal conditions for obtaining high hydrophilicity without thermal damage 18 . The QCM frequency reduction after APP exposure was within 10 ng and was much smaller than the deposition mass of the SA-LB film.…”

Section: Effect Of Atmospheric Pressure Plasma Exposurementioning

confidence: 99%

Application of Quartz Crystal Microbalance as a Tool for Detergency Evaluation of Fatty Acid Contamination in Aqueous Systems

2016

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

Cited by 55 publications

References 46 publications

Textile Performance of Polyester, Nylon 6 and Acetate Fabrics Treated with Atmospheric Pressure Plasma Jet

Textile Performance of Polyester, Nylon 6 and Acetate Fabrics Treated with Atmospheric Pressure Plasma Jet

Surface modification of polymeric materials by cold atmospheric plasma jet

Application of Quartz Crystal Microbalance as a Tool for Detergency Evaluation of Fatty Acid Contamination in Aqueous Systems

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