Surface modification of porous poly(tetrafluoroethylene) film via cold plasma treatment

Shi, Tongna; Shao, Meiling; Zhang, Hongrui; Yang, Qing; Shen, Xinyuan

doi:10.1016/j.apsusc.2011.09.110

Cited by 41 publications

(15 citation statements)

References 17 publications

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“…The higher O/C ratios as a function of plasma power are in agreement with this observation (Table 1). Shi et al (2011) reported a similar behavior for PTFE (polytetrafluoroethylene) substrate upon plasma treatment.…”

Section: Xps Characterizationsupporting

confidence: 54%

Changes of wettability of medium density fiberboard (MDF) treated with He-DBD plasma

Cademartori¹,

Muniz²,

Magalhães³

2014

Holzforschung

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The effects of two power levels (50 and 150 W) and five time levels (10, 20, 40, 60 and 120 s) of glow discharge in helium dielectric barrier discharge (He-DBD) has been investigated in the context of surface modification of medium density fiberboard (MDF) panels. He-DBD elevated the surface wettability of MDF panels as assessed by dynamic contact angle (CA) measurements including the determination of surface free energy, droplet volume and spreading contact area of droplets. The chemical changes of the MDF surfaces were also characterized by X-ray photoelectron spectroscopy (XPS). Expectedly, the apparent CA and droplet volume decreased with increasing power and time of glow discharge, mainly at the 150 W power level. The oxygen content of the surfaces, the surface free energy and the spreading contact area increased upon treatment. At higher energy levels the treatment time could be reduced, which is essential for future applications in industrial processes.

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Section: Xps Characterizationsupporting

confidence: 54%

Changes of wettability of medium density fiberboard (MDF) treated with He-DBD plasma

Cademartori¹,

Muniz²,

Magalhães³

2014

Holzforschung

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“…29 The studies seem to stop short of completing the rational research cycle because little has been reported about the effectiveness of the modification with respect to bondability of the treated surfaces or in other applications. These studies are useful in shedding light on the state of the modified PTFE surfaces vs the as-is sample.…”

Section: Plasma Treatment Of Fluoropolymers and Ptfementioning

confidence: 99%

“…29 The gases used were air, helium, and acrylic acid (AAc). 29 The gases used were air, helium, and acrylic acid (AAc).…”

Section: Plasma Treatment Of Fluoropolymers and Ptfementioning

confidence: 99%

“…14 Scanning probe microscopy images of untreated and treated polytetrafluoroethylene surfaces: (A) untreated; (B) treated with air plasma at 70 W for 60 s; (C) treated with air plasma at 100 W for 60 s; (D) treated with He-plasma at 70 W for 60 s; (E) treated with He-plasma at 100 W for 60 s; (F) treated with AAc-plasma at 100 W for 60 s; and (G) treated with AAc-plasma at 100 W for 120 s 29. …”

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confidence: 99%

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Surface Treatment of Polytetrafluoroethylene for Adhesion

Ebnesajjad¹

2015

Fluoroplastics

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“…Therefore, we focused on the surface modification of the PTFE plate by the plasma pretreatment and subsequent photografting. A variety of oxygen-containing functional groups are generated on the surfaces, when the PTFE materials were treated by a non-polymerizable gas [10,11]. Of the oxygen-containing functional groups, a hydroperoxide group is known to be thermally decomposed into an active site of grafting [12].…”

Section: Introductionmentioning

confidence: 99%

Photografting of Methacrylic Acid onto Plasma-pretreated Poly(tetrafluoroethylene) Plates and Enhancement of Their Adhesivity

Tachi

Kimura

Yamada

2015

J. Photopol. Sci. Technol.

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In this study, methacrylic acid (MAA) was grafted onto a poly(tetrafluoroethylene) (PTFE) plate by the oxygen plasma treatment and subsequent photografting. The surfaces of the grafted PTFE plates prepared at shorter plasma treatment times and/or at lower monomer concentrations were modified hydrophilic at lower grafted amounts. Water absorptivity of the grafted layer increased with the grafted amount and the grafted layers formed at lower monomer concentrations possessed higher water absorptivity. For grafted PTFE plates prepared at the monomer concentration of 1.5 and 2.0 M after the plasma treatment, the substrate breaking occurred. The grafted amount at substrate breaking decreased with a decrease in the plasma treatment time, indicating that the location of photografting was restricted to the outer surface region at shorter plasma treatment times. It was made clear that the combination of the oxygen plasma treatment with the photografting of MAA was an effective procedure to modify the PTFE surface.

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Surface modification of porous poly(tetrafluoroethylene) film via cold plasma treatment

Cited by 41 publications

References 17 publications

Changes of wettability of medium density fiberboard (MDF) treated with He-DBD plasma

Changes of wettability of medium density fiberboard (MDF) treated with He-DBD plasma

Surface Treatment of Polytetrafluoroethylene for Adhesion

Photografting of Methacrylic Acid onto Plasma-pretreated Poly(tetrafluoroethylene) Plates and Enhancement of Their Adhesivity

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