Study on the fabrication and tribological behavior of self-assembled functionalized graphene oxide in water

Hanglin Li, Chang Liu, Jinyang Chen, Ilse de Vries, Sissi de Beer, Li Zhang*, Xiaojun Zhang, Junxiang Ma, Jiusheng Li, Xiangqiong Zeng, Honglai Liu, Yazhuo Shang

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

A new lubricating coating with functionalized graphene oxide (fGO) consisting of graphene oxide (GO) with different oxidation degrees, n-octylamine basal plane functionalized GO (bGO), and edge functionalized GO (eGO) was developed with or without 3-aminopropyltrimethoxysilane (APTMS) to reduce friction in macroscale contact with water. The optimal preparation condition of the coating was obtained by the single factor evaluation of a series of factors (20 % APTMS aqueous solution, 12 h immersion time, 0.05 mg/mL GO aqueous solution, and 100 °C curing temperature). The effect of the oxidation degree and functionalization of GO on the friction-reducing and anti-wear behavior of the coating was explored. The coatings with a higher GO oxidation degree exhibited better friction-reduction and anti-wear performance. In addition, the friction-reducing capability of the APTMS-bGO coating was greater than that of APTMS-eGO.

Original languageEnglish
Article number126153
JournalColloids and surfaces A: Physicochemical and engineering aspects
Volume616
DOIs
Publication statusPublished - 5 May 2021

Keywords

  • Coating
  • Functionalized graphene oxide
  • Oxidation
  • Tribological properties

Fingerprint Dive into the research topics of 'Study on the fabrication and tribological behavior of self-assembled functionalized graphene oxide in water'. Together they form a unique fingerprint.

Cite this