Sliding tribological properties of untreated and PIII-treated PETP

Gábor Kalácska, László Zsidai, Klára Kereszturi, M. Mohai, A. Tóth

Research output: Contribution to journalArticle

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Abstract

Poly(ethylene terephthalate) (PETP) was treated by plasma immersion ion implantation (PIII or PI3) in nitrogen. The surface changes were characterised by XPS and water contact-angle measurements. Sliding tribological properties of untreated and nitrogen PIII-treated PETP against conventional low carbon structural steel S235 were studied under dry and water-lubricated conditions by a pin-on-disc tribometer. XPS results suggested the evolution of surface composition and bonding towards those of amorphous hydrogenated carbon-nitride. Water contact-angle decreased implying increased surface wettability. At a very low Pv factor (0.0075 MPa m s-1) for the nitrogen PIII-treated PETP the dry friction coefficient was smaller than, while the lubricated friction coefficient was similar to, the corresponding value of the untreated variant. At higher Pv factors (near 0.1 MPa m s-1), however, both the dry and lubricated friction coefficients were higher for the treated sample than for the untreated variant, suggesting an increased adhesion component of friction for the nitrogen PIII-treated PETP in this region.

Original languageEnglish
Pages (from-to)5847-5850
Number of pages4
JournalApplied Surface Science
Volume255
Issue number11
DOIs
Publication statusPublished - Mar 15 2009

Fingerprint

Polyethylene Terephthalates
Polyethylene terephthalates
Nitrogen
Friction
Contact angle
Water
X ray photoelectron spectroscopy
Carbon nitride
Steel
Angle measurement
Surface structure
Ion implantation
Wetting
Carbon
Adhesion
Plasmas

Keywords

  • Contact-angle
  • Friction
  • Pin-on-disc tribometer
  • Plasma immersion ion implantation
  • Poly(ethylene terephthalate)
  • XPS

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Sliding tribological properties of untreated and PIII-treated PETP. / Kalácska, Gábor; Zsidai, László; Kereszturi, Klára; Mohai, M.; Tóth, A.

In: Applied Surface Science, Vol. 255, No. 11, 15.03.2009, p. 5847-5850.

Research output: Contribution to journalArticle

Kalácska, Gábor ; Zsidai, László ; Kereszturi, Klára ; Mohai, M. ; Tóth, A. / Sliding tribological properties of untreated and PIII-treated PETP. In: Applied Surface Science. 2009 ; Vol. 255, No. 11. pp. 5847-5850.
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