Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel-steel rotating ball-on-three plates tribology cell

R. Gallego; T. Cidade; R. Sanchez; C. Valencia; J. M. Franco

doi:10.1016/j.triboint.2015.10.028

Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel-steel rotating ball-on-three plates tribology cell

R. Gallego, T. Cidade, R. Sanchez, C. Valencia, J. M. Franco

DCM - Departamento de Ciência dos Materiais

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

38 Citations (Scopus)

Abstract

In this work, model renewable and biodegradable lubricating greases based on castor oil and chemically modified biopolymers (methylcellulose, chitin and cellulosic pulp) were tribologically characterized in a steel-steel ball-on-plates tribological cell coupled to a controlled-stress rheometer, and the results were compared to those provided by conventional lithium and calcium soap-based greases. Viscous flow, sliding velocity sweep and transient friction tests were carried out and resulting wear scars in the steel plates were evaluated by means of scanning electron microscopy (SEM). Different frictional responses were found depending on the thickener, especially at high temperature. Excepting for most severe conditions, wear is negligible when using chemically modified chitin and methylcellulose-based greases as lubricants. (C) 2015 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	652-660
Number of pages	9
Journal	Tribology international
Volume	94
DOIs	https://doi.org/10.1016/j.triboint.2015.10.028
Publication status	Published - Feb 2016

Keywords

Biopolymer-based lubricating greases
Friction
Rheology
Wear
OIL-BASED LUBRICANTS
VEGETABLE-OILS
CASTOR-OIL
FILM THICKNESS
VISCOSITY MODIFICATION
RHEOLOGICAL PROPERTIES
POLYMERIC ADDITIVES
METHYL CELLULOSE
STRIBECK CURVE
BASE-STOCKS

UN SDGs

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

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10.1016/j.triboint.2015.10.028

Cite this

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title = "Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel-steel rotating ball-on-three plates tribology cell",

abstract = "In this work, model renewable and biodegradable lubricating greases based on castor oil and chemically modified biopolymers (methylcellulose, chitin and cellulosic pulp) were tribologically characterized in a steel-steel ball-on-plates tribological cell coupled to a controlled-stress rheometer, and the results were compared to those provided by conventional lithium and calcium soap-based greases. Viscous flow, sliding velocity sweep and transient friction tests were carried out and resulting wear scars in the steel plates were evaluated by means of scanning electron microscopy (SEM). Different frictional responses were found depending on the thickener, especially at high temperature. Excepting for most severe conditions, wear is negligible when using chemically modified chitin and methylcellulose-based greases as lubricants. (C) 2015 Elsevier Ltd. All rights reserved.",

keywords = "Biopolymer-based lubricating greases, Friction, Rheology, Wear, OIL-BASED LUBRICANTS, VEGETABLE-OILS, CASTOR-OIL, FILM THICKNESS, VISCOSITY MODIFICATION, RHEOLOGICAL PROPERTIES, POLYMERIC ADDITIVES, METHYL CELLULOSE, STRIBECK CURVE, BASE-STOCKS",

author = "R. Gallego and T. Cidade and R. Sanchez and C. Valencia and Franco, {J. M.}",

note = "sem pdf conforme despacho. projects (CTQ2014–56038-C3-1R and TEP-1499) sponsored by MINECO-FEDER and Junta de Andaluc{\'i}a programmes. (BES-2011–045029) from DIGICyT (MINECO). Portuguese Foundation for Science and Technology through Project PEst-C/CTM/LA0025/2013 and The Portuguese Society of Rheology (SPR) for her stay in University of Huelva. ",

year = "2016",

month = feb,

doi = "10.1016/j.triboint.2015.10.028",

language = "English",

volume = "94",

pages = "652--660",

journal = "Tribology international",

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T1 - Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel-steel rotating ball-on-three plates tribology cell

AU - Gallego, R.

AU - Cidade, T.

AU - Sanchez, R.

AU - Valencia, C.

AU - Franco, J. M.

N1 - sem pdf conforme despacho. projects (CTQ2014–56038-C3-1R and TEP-1499) sponsored by MINECO-FEDER and Junta de Andalucía programmes. (BES-2011–045029) from DIGICyT (MINECO). Portuguese Foundation for Science and Technology through Project PEst-C/CTM/LA0025/2013 and The Portuguese Society of Rheology (SPR) for her stay in University of Huelva.

PY - 2016/2

Y1 - 2016/2

N2 - In this work, model renewable and biodegradable lubricating greases based on castor oil and chemically modified biopolymers (methylcellulose, chitin and cellulosic pulp) were tribologically characterized in a steel-steel ball-on-plates tribological cell coupled to a controlled-stress rheometer, and the results were compared to those provided by conventional lithium and calcium soap-based greases. Viscous flow, sliding velocity sweep and transient friction tests were carried out and resulting wear scars in the steel plates were evaluated by means of scanning electron microscopy (SEM). Different frictional responses were found depending on the thickener, especially at high temperature. Excepting for most severe conditions, wear is negligible when using chemically modified chitin and methylcellulose-based greases as lubricants. (C) 2015 Elsevier Ltd. All rights reserved.

AB - In this work, model renewable and biodegradable lubricating greases based on castor oil and chemically modified biopolymers (methylcellulose, chitin and cellulosic pulp) were tribologically characterized in a steel-steel ball-on-plates tribological cell coupled to a controlled-stress rheometer, and the results were compared to those provided by conventional lithium and calcium soap-based greases. Viscous flow, sliding velocity sweep and transient friction tests were carried out and resulting wear scars in the steel plates were evaluated by means of scanning electron microscopy (SEM). Different frictional responses were found depending on the thickener, especially at high temperature. Excepting for most severe conditions, wear is negligible when using chemically modified chitin and methylcellulose-based greases as lubricants. (C) 2015 Elsevier Ltd. All rights reserved.

KW - Biopolymer-based lubricating greases

KW - Friction

KW - Rheology

KW - Wear

KW - OIL-BASED LUBRICANTS

KW - VEGETABLE-OILS

KW - CASTOR-OIL

KW - FILM THICKNESS

KW - VISCOSITY MODIFICATION

KW - RHEOLOGICAL PROPERTIES

KW - POLYMERIC ADDITIVES

KW - METHYL CELLULOSE

KW - STRIBECK CURVE

KW - BASE-STOCKS

U2 - 10.1016/j.triboint.2015.10.028

DO - 10.1016/j.triboint.2015.10.028

M3 - Article

SN - 0301-679X

VL - 94

SP - 652

EP - 660

JO - Tribology international

JF - Tribology international

ER -

Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel-steel rotating ball-on-three plates tribology cell

Abstract

Keywords

UN SDGs

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