Short-time plasma surface modification of HDPE powder in a Plasma Downer Reactor – process, wettability improvement and ageing effects

Arpagaus, Cordin; Rossi, Antonella; Rohr, Ph. Rudolf von

doi:10.1016/j.apsusc.2005.02.099

Cited by 95 publications

(101 citation statements)

References 27 publications

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“…For PS surface with CA of 76°, a rough surface of micro/nano pillars-aligned patterns may make it hydrophobic according to Cassie state (no-wetted state). It is well known that plasma irradiation change the chemical composition of PS surface [40][41][42] to lead to a slow chain scission with hydroxyl group, carboxyl group, are discussed in references in detail [26,43,44]. If PS surface or coating was treated using air plasma irradiation, the hydrophilic surface with CA of 15° was obtained.…”

Section: Wettability Transition From Hydrophobicity To Hydrophilicitymentioning

confidence: 99%

Wettability transition of plasma-treated polystyrene micro/nano pillars-aligned patterns

Kong¹,

Yung²,

Xu³

et al. 2010

Express Polym. Lett.

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Abstract. This paper reports the wettability transition of plasma-treated polystyrene (PS) micro/nano pillars-aligned patterns. The micro/nano pillars were prepared using hot embossing on silicon microporous template and alumina nanoporous template, which were fabricated by ultraviolet (UV) lithography and inductive coupled plasma (ICP) etching, and two-step anodic oxidation, respectively. The results indicate that the combination of micro/nano patterning and plasma irradiation can easily regulate wettabilities of PS surfaces, i.e. from hydrophilicity to hydrophobicity, or from hydrophobicity to superhydrophilicity. During the wettability transition from hydrophobicity to hydrophilicity there is only mild hydrophilicity loss. After plasma irradiation, moreover, the wettability of PS micro/nano pillars-aligned patterns is more stable than that of flat PS surfaces. The observed wettability transition and wettability stability of PS micro/nano pillars-aligned patterns are new phenomena, which may have potential in creating programmable functional polymer surfaces.

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Section: Wettability Transition From Hydrophobicity To Hydrophilicitymentioning

confidence: 99%

Wettability transition of plasma-treated polystyrene micro/nano pillars-aligned patterns

Kong¹,

Yung²,

Xu³

et al. 2010

Express Polym. Lett.

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show abstract

“…For the treatment power used, a time of 5 min (12 Passes) is needed to achieve the maximum increase in surface energy compared to 20 min for a He only plasma. Researchers have attributed the decrease in dispersive component to crosslinking on the material's surface [9,32]. As has been previously shown, the He/O 2 plasma contains relatively more oxygen-containing species than a He or He/N 2 plasma [33].…”

Section: Surface Energy Analysismentioning

confidence: 82%

Effect of an Atmospheric Pressure Plasma Treatment on the Mode I Fracture Toughness of a Co-Cured Composite Joint

Mohan

Ramamoorthy

Ivanković

et al. 2014

The Journal of Adhesion

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“…The plasma surface treatment has the advantage of achieving a relatively fast and effective treatment result. Unfortunately, the stability and ageing of the plasma treatment (Øiseth et al 2002;Arpagaus et al 2005), and the durability in a wet environment of the bonding joint for plasma-treated composites, have been found to be poor Wang and Di 2012;Di and Wang 2013). In contrast, the polyethylene WPCs coated with a coupling agent showed a high bonding strength and good durability.…”

Section: Introductionmentioning

confidence: 99%

Combined Surface Treatment of Polyethylene Wood-plastic Composites to Achieve Rapid Bonding with Desired Adhesion Properties

et al. 2017

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To achieve rapid bonding with desired adhesion properties, a combined treatment of sanding then coating with polyisocyanate, followed by plasma discharge was implemented on the surfaces of polyethylene wood-plastic composites (WPCs). The surface properties of polyethylene WPCs were studied by evaluating the contact angle and bonding strength, as well as analyzing it via Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The results indicated that the shear strength and durability of the bonding joints of polyethylene WPCs increased considerably due to the synergetic effect from the surface treatment. Thus, a rapid bonding with desired adhesion properties of polyethylene WPCs was achieved. The roughness and the oxygen content on the composites' surface increased after the combined treatment. Polar functional groups, such as -OH, -C=O, and -O-C=O, formed on the surface. At the same time, the presence of -NCO and -NH functionalities, generated during the combined treatment, showed that chemical bondings between polyisocyanate and the wood fibers of the composites occurred. The changes on the surface properties, such as roughness, wettability, as well as formation of chemical groups, substantially affected the adhesion properties of the bonding joint for polyethylene WPCs.

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Short-time plasma surface modification of HDPE powder in a Plasma Downer Reactor – process, wettability improvement and ageing effects

Cited by 95 publications

References 27 publications

Wettability transition of plasma-treated polystyrene micro/nano pillars-aligned patterns

Wettability transition of plasma-treated polystyrene micro/nano pillars-aligned patterns

Effect of an Atmospheric Pressure Plasma Treatment on the Mode I Fracture Toughness of a Co-Cured Composite Joint

Combined Surface Treatment of Polyethylene Wood-plastic Composites to Achieve Rapid Bonding with Desired Adhesion Properties

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