Topological and chemical investigation on super-hydrophobicity of PTFE surface caused by ion irradiation

Chen, Yan; Zhao, Ziqiang; Dai, Junfeng; Liu, Yingmin

doi:10.1016/j.apsusc.2007.06.044

Cited by 27 publications

(11 citation statements)

References 20 publications

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“…5). This phenomenon has been reported for ultraviolet laser irradiation [9] and Xe ion irradiation [10], and can be measured by the same mechanism. This is because in the experiment, Xe ions constituting plasma debris and outof-band UV light outside the soft X-ray range of 5 nm to 17 nm were also emitted at the same time.…”

Section: Surface Modification Of Teflon By Micromachiningsupporting

confidence: 81%

Micromachining Using Soft X‐Rays from Laser‐Produced Xe Plasma

Amano

Inoue

Miyamoto

2016

Elect Comm in Japan

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SUMMARY Micromachining of poly(tetrafluoroethylene) (Teflon) and poly(methyl methacrylate) (PMMA) samples was carried out using soft X‐rays from a laser‐produced Xe plasma source, which we developed. In the Teflon sample, the contact angle with a water droplet on a modified surface increased from 90° to 110° as a result of irradiation without a mirror or mask, while the angle decreased to 50° when using irradiation with them. Scanning electron microscopy showed numerous micro‐protuberances and a masked pattern with micro‐concavities on each sample surface. These results suggested that a change to the contact angle was caused by the microstructures on the Teflon surface. We succeeded in controlling the wettability of the Teflon surface, from hydrophobic to hydrophilic, by micromachining using laser plasma X‐rays. In the PMMA sample, the etching rate was investigated with irradiation using a large number of pulses (192,000 pulses) and a low power density of 8 × 104 W/cm2. The etching rate was calculated to be 5 pm/pulse. This was judged to be due only to photo‐etching without any thermal effects. We demonstrated a pure photo‐etching depth of about 1 μm.

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Section: Surface Modification Of Teflon By Micromachiningsupporting

confidence: 81%

Micromachining Using Soft X‐Rays from Laser‐Produced Xe Plasma

Amano

Inoue

Miyamoto

2016

Elect Comm in Japan

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“…However, contact angle between water droplet and the surface of commercially available PTFE usually do not exceed 1088 [8,9]. Successful attempts to improve hydrophobicity include ion implantation, pulsed laser deposition, pulse electron deposition and ion beam irradiation [8,[10][11][12][13]. Most of the methods reported are complex, time-consuming and need expensive equipment.…”

Section: Introductionmentioning

confidence: 99%

Surface texturing of polytetrafluoroethylene by hot embossing

Jucius

Guobienė

Grigaliūnas

2010

Applied Surface Science

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“…[222]). c ⃝ 2003, RIGHTS LINKS, Copy Right Clearance Centre, Inc.structure is considered to be the key point to the formation of such super-hydrophobic surface[221].The ageing effect on the low energy Ti ion irradiated PTFE nanofibrous is shown inFig. 3.30.…”

mentioning

confidence: 99%