Seed oils are renewable resources, environmentally friendly non toxic fluids, pose no work place health hazards and are readily biodegradable. The amphiphilic character of these oils makes them an excellent candidate as lubricants and as specialty chemicals. Industrial application of seed oils is limited due to poor thermo-oxidative stability, poor low temperature fluidity, and other tribochemical degrading processes that occur under severe conditions of temperature, pressure, shear stress, metal surface and environment. This work describes the development and tribochemical evaluation of seed oil based antiwear additive through chemical modification. The current process retains the seed oil structure, eliminates poly-unsaturation in the molecule, and adds polar functional groups that significantly improve adsorption on metal surfaces. These compounds also contribute to the formation of protective films through chemical reaction during the tribochemical process. Comparative tests with commercial products demonstrate its effectiveness.

Volume Subject Area:
Tribology
Topics:
Wear, Oils, Petroleum, Metal surfaces, Biodegradation, Chemical reactions, Fluids, Hazards, Low temperature, Lubricants, Pressure, Shear stress, Stability, Temperature, Tribochemistry
1.
D.K. Salunkhe, J.K. Chavan, R.N. Adsule and S.S. Kadam. World Oil Seed Chemistry, Technology and Utilization, Van Nostrand Reinhold, New York, 1992, pp. 1–8.
2.
M. Bockish (ed.). Fats and Oils Handbook, AOCS Press, Champaign, (1998) 838.
3.
Zaher
F. A.
and
Nomany
H. M.
.
Vegetable oils and lubricants
.
Grasas Aceites (Seville)
,
39
(
1988
)
235
–
238
.
4.
Willing
A.
,
Lubricants based on renewable resources - an environmentally compatible alternative to mineral oil products
.
Chemosphere
,
43
(
2001
)
89
–
98
.
5.
Randles
S. J.
and
Wright
M.
.
Environmentally considerate ester lubricants for automotive and engineering industries
.
J. Syn. Lubr.
9
(
1992
)
145
–
161
.
6.
Dick
R. M.
.
Recycling of metalworking fluids
.
Manuf. Eng. Mater. Process.
41
(
1994
)
339
–
365
.
7.
Becker
R.
and
Knorr
A.
.
An evaluation of antioxidants for vegetable oils at elevated temperatures
.
Lubr. Sc.
,
8
(
1996
)
95
–
117
.
8.
Adhvaryu
A.
,
Erhan
S. Z.
,
Liu
Z. S.
and
Perez
J. M.
.
Oxidation Kinetic Studies of Unmodified and Genetically Modified Vegetable oils using Pressurized Differential Scanning Calorimetry and Nuclear Magnetic Resonance Spectroscopy
,
Thermochimica Acta
,
364
(
1–2
), (
2000
)
87
–
97
.
9.
Asadauskas
S.
and
Erhan
S. Z.
.
Depression of pour points of vegetable oils by blending with diluents used for biodegradable lubricants
.
J. Am. Oil Chem. Soc.
,
76
(
1999
)
313
–
316
.
10.
Adhvaryu
A.
,
Erhan
S. Z.
and
Perez
J. M.
.
Wax appearance temperatures of vegetable oils determined by differential scanning calorimetry: Effect of triacylglycerol structure and its modification
.
Thermochimica Acta
395
(
2003
)
191
–
200
.
11.
Brophy
J. E.
and
Zisman
W. A.
.
Surface chemical phenomena in lubrication
.
Ann N.Y. Academy Sci.
53
(
1951
)
836
–
861
.
12.
Miller
A.
and
Anderson
A. A.
.
Apparent adsorption isotherm of oleic acid from hydrocarbons as obtained from coefficient of friction measurements
.
Lubr. Eng.
13
(
1957
)
553
–
556
.
13.
Brockway
L. O.
and
Karle
J.
.
J. Colloid Sci.
2
(
1947
)
277
–
289
.
14.
G.I. Fuks. Research in surface forces. A.B.V. Deryagin (ed.) Consultants Bureau, New York (1963) 29–88.
15.
Kingsbury
E. P.
.
The heat of adsorption of a boundary lubricant
.
ASLE Trans.
3
(
1960
)
30
–
33
.
16.
Wei
Dan-ping
.
An investigation into the antiwear, antioxidation, and anticorrosion behavior of some derivaties of 2,5-dimercapto-1,3,4-thiadiaxole
.
Lubr. Sci.
7
(
1995
)
365
–
377
.
17.
Xu
X.
.
Tribological performance and action mechanism of S-alkyl and S-benzimidazole substituted Dialkyldithiocarbamate
.
Wear
241
(
2000
)
41
–
46
.
18.
Adhvaryu
A.
and
Erhan
S. Z.
.
Epoxidized soybean oil as a potential source of high-temperature lubricants
.
Ind. Crops Products
15
(
2002
)
247
–
254
.
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