High-Density Polyethylene (HDPE) Surface Treatment Using an RF Capacitive Atmospheric Pressure Cold Ar Plasma Jet

FEI Xiaomeng (费小猛); Shin-ichi KURODA; Tamio MORI; Katsuhiko HOSOI

doi:10.1088/1009-0630/15/6/16

Plasma Science and Technology > 2013 > 15(6): 577-581. > DOI: 10.1088/1009-0630/15/6/16

FEI Xiaomeng (费小猛), Shin-ichi KURODA, Tamio MORI, Katsuhiko HOSOI. High-Density Polyethylene (HDPE) Surface Treatment Using an RF Capacitive Atmospheric Pressure Cold Ar Plasma Jet[J]. Plasma Science and Technology, 2013, 15(6): 577-581. DOI: 10.1088/1009-0630/15/6/16

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High-Density Polyethylene (HDPE) Surface Treatment Using an RF Capacitive Atmospheric Pressure Cold Ar Plasma Jet

1 School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China 2 Department of Advanced Production Science and Technology, Graduate School of Engineering, Gunma University, 29-1Hontyo, Ota 373-0057, Gunma, Japan 3 Cresur Corporation, 15-305 Kanda Suda, Chiyoda 101-0041, Tokyo, Japan

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Abstract

Abstract

In this study, a high-density polyethylene (HDPE, 5-mm-thick, 0.95 g/cm³) surface was treated using an RF capacitive atmospheric pressure cold Ar plasma jet. By using this Ar plasma jet, a hydrophilic HDPE surface was formed during the plasma treatment. In particular, the effects of an additive gas (N₂ or O₂) on the HDPE surface treatment were investigated in detail. It was shown that the addition of N₂ or O₂ gas had an important influence on the HDPE surface treatment. Compared to pure Ar plasma treatment, a lower value of water contact angle (WCA) was obtained when a trace of N₂ or O₂ gas was added. It was also found that besides the quantities of active species in the plasma jet, the treatment temperature played an important role in the HDPE surface treatment. This is because surface molecular motion is not negligible when the treatment temperature is close to the melting point of the polymer.
- atmospheric pressure,
- Ar plasma jet,
- additive gas,
- , HDPE surface treatment

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