Ultra-low friction between polymers and graphene oxide multilayers in nitrogen atmosphere, mediated by stable transfer film formation

Prabakaran Saravanan; Roman Selyanchyn; Hiroyoshi Tanaka; Shigenori Fujikawa; Stephen Matthew Lyth; Joichi Sugimura

doi:10.1016/j.carbon.2017.06.090

Ultra-low friction between polymers and graphene oxide multilayers in nitrogen atmosphere, mediated by stable transfer film formation

Prabakaran Saravanan^*
, Roman Selyanchyn
, Hiroyoshi Tanaka
, Shigenori Fujikawa
, Stephen Matthew Lyth
, Joichi Sugimura

^*Corresponding author for this work

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

The efficiency and lifetime of mechanical devices is significantly decreased by friction and wear, significantly contributing to global energy consumption. We previously showed that multilayer polyethyleneimine/graphene oxide thin films, (PEI/GO)₁₅, on steel display superlubricity against a steel counterface ball. Here, the coefficient of friction (COF) and wear of (PEI/GO)₁₅ with six different counterface polymer balls is investigated in air and in nitrogen, with particular focus on the formation of tribological transfer films. The polymers polyoxymethylene (POM), polyetheretherketone (PEEK), polyethylene (PE), poly(methyl methacrylate) (PMMA), polycarbonate (PC), and polytetrafluoroethylene (PTFE) are utilized. The COF of (PEI/GO)₁₅ vs steel is 0.35 in both air and nitrogen. In air, the COF ranges from 0.06 to 0.17 for all polymers. Significantly, in nitrogen, four polymers (POM, PEEK, PMMA and PC) display ultra-low friction (COF ∼0.02) whilst two do not (PTFE and PE). The wear tracks and transfer films are investigated using e.g. optical microscopy, electron microscopy, and Raman mapping, and the tribological behavior is correlated to the hydrophilicity and relative hardness of the polymer balls compared to GO.

Original language	English
Pages (from-to)	395-403
Number of pages	9
Journal	Carbon
Volume	122
Early online date	27 Jun 2017
DOIs	https://doi.org/10.1016/j.carbon.2017.06.090
Publication status	Published - 1 Oct 2017

Funding

This work was supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan, and a Grant-in-Aid for Research Activity Start-up from JSPS (No. UFG5H06471). Shugo Onitsuka, Kazumi Okada, Ryosuke Komoda, Takehiro Morita and Yoshie Kurono are gratefully acknowledged for the technical assistance.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

friction
graphene oxide
nitrogen
polymer
solid lubricant
transfer layer
wear

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10.1016/j.carbon.2017.06.090

Cite this

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title = "Ultra-low friction between polymers and graphene oxide multilayers in nitrogen atmosphere, mediated by stable transfer film formation",

abstract = "The efficiency and lifetime of mechanical devices is significantly decreased by friction and wear, significantly contributing to global energy consumption. We previously showed that multilayer polyethyleneimine/graphene oxide thin films, (PEI/GO)15, on steel display superlubricity against a steel counterface ball. Here, the coefficient of friction (COF) and wear of (PEI/GO)15 with six different counterface polymer balls is investigated in air and in nitrogen, with particular focus on the formation of tribological transfer films. The polymers polyoxymethylene (POM), polyetheretherketone (PEEK), polyethylene (PE), poly(methyl methacrylate) (PMMA), polycarbonate (PC), and polytetrafluoroethylene (PTFE) are utilized. The COF of (PEI/GO)15 vs steel is 0.35 in both air and nitrogen. In air, the COF ranges from 0.06 to 0.17 for all polymers. Significantly, in nitrogen, four polymers (POM, PEEK, PMMA and PC) display ultra-low friction (COF ∼0.02) whilst two do not (PTFE and PE). The wear tracks and transfer films are investigated using e.g. optical microscopy, electron microscopy, and Raman mapping, and the tribological behavior is correlated to the hydrophilicity and relative hardness of the polymer balls compared to GO.",

keywords = "friction, graphene oxide, nitrogen, polymer, solid lubricant, transfer layer, wear",

author = "Prabakaran Saravanan and Roman Selyanchyn and Hiroyoshi Tanaka and Shigenori Fujikawa and Lyth, \{Stephen Matthew\} and Joichi Sugimura",

note = "Funding Information: This work was supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan, and a Grant-in-Aid for Research Activity Start-up from JSPS (No. UFG5H06471). Shugo Onitsuka, Kazumi Okada, Ryosuke Komoda, Takehiro Morita and Yoshie Kurono are gratefully acknowledged for the technical assistance. Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

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AU - Saravanan, Prabakaran

AU - Selyanchyn, Roman

AU - Tanaka, Hiroyoshi

AU - Fujikawa, Shigenori

AU - Lyth, Stephen Matthew

AU - Sugimura, Joichi

N1 - Funding Information: This work was supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan, and a Grant-in-Aid for Research Activity Start-up from JSPS (No. UFG5H06471). Shugo Onitsuka, Kazumi Okada, Ryosuke Komoda, Takehiro Morita and Yoshie Kurono are gratefully acknowledged for the technical assistance. Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017/10/1

Y1 - 2017/10/1

N2 - The efficiency and lifetime of mechanical devices is significantly decreased by friction and wear, significantly contributing to global energy consumption. We previously showed that multilayer polyethyleneimine/graphene oxide thin films, (PEI/GO)15, on steel display superlubricity against a steel counterface ball. Here, the coefficient of friction (COF) and wear of (PEI/GO)15 with six different counterface polymer balls is investigated in air and in nitrogen, with particular focus on the formation of tribological transfer films. The polymers polyoxymethylene (POM), polyetheretherketone (PEEK), polyethylene (PE), poly(methyl methacrylate) (PMMA), polycarbonate (PC), and polytetrafluoroethylene (PTFE) are utilized. The COF of (PEI/GO)15 vs steel is 0.35 in both air and nitrogen. In air, the COF ranges from 0.06 to 0.17 for all polymers. Significantly, in nitrogen, four polymers (POM, PEEK, PMMA and PC) display ultra-low friction (COF ∼0.02) whilst two do not (PTFE and PE). The wear tracks and transfer films are investigated using e.g. optical microscopy, electron microscopy, and Raman mapping, and the tribological behavior is correlated to the hydrophilicity and relative hardness of the polymer balls compared to GO.

AB - The efficiency and lifetime of mechanical devices is significantly decreased by friction and wear, significantly contributing to global energy consumption. We previously showed that multilayer polyethyleneimine/graphene oxide thin films, (PEI/GO)15, on steel display superlubricity against a steel counterface ball. Here, the coefficient of friction (COF) and wear of (PEI/GO)15 with six different counterface polymer balls is investigated in air and in nitrogen, with particular focus on the formation of tribological transfer films. The polymers polyoxymethylene (POM), polyetheretherketone (PEEK), polyethylene (PE), poly(methyl methacrylate) (PMMA), polycarbonate (PC), and polytetrafluoroethylene (PTFE) are utilized. The COF of (PEI/GO)15 vs steel is 0.35 in both air and nitrogen. In air, the COF ranges from 0.06 to 0.17 for all polymers. Significantly, in nitrogen, four polymers (POM, PEEK, PMMA and PC) display ultra-low friction (COF ∼0.02) whilst two do not (PTFE and PE). The wear tracks and transfer films are investigated using e.g. optical microscopy, electron microscopy, and Raman mapping, and the tribological behavior is correlated to the hydrophilicity and relative hardness of the polymer balls compared to GO.

KW - friction

KW - graphene oxide

KW - nitrogen

KW - polymer

KW - solid lubricant

KW - transfer layer

KW - wear

UR - https://www.scopus.com/pages/publications/85021684499

U2 - 10.1016/j.carbon.2017.06.090

DO - 10.1016/j.carbon.2017.06.090

M3 - Article

AN - SCOPUS:85021684499

SN - 0008-6223

VL - 122

SP - 395

EP - 403

JO - Carbon

JF - Carbon

ER -

Ultra-low friction between polymers and graphene oxide multilayers in nitrogen atmosphere, mediated by stable transfer film formation

Abstract

Funding

UN SDGs

Keywords

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