Friction and Wear Characteristics of Organic Thiophosphoro Derivatives- A Critical Appraisal
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Anand,O.N
Singh,A.K Vijay,Kumar Bisht,R.P.S |
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| Date |
2009-07-28T06:01:16Z
2009-07-28T06:01:16Z 2009-07-28T06:01:16Z |
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| Identifier |
Lubrication Science 7-4, July 1995.
http://hdl.handle.net/123456789/403 |
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| Description |
The friction- and wear-reducing characteristics of a number of
oil soluble sulphurised and phosphosulphurised derivatives for
automotive and industrial applications have been reviewed. A
critical appraisal of the suggested causes and mechanism of
friction reduction and anti wear characteristics has been made.
A review of the investigations carried out so far indicates that
the creation of in situ films of simple inorganic salts, such as
molybdenum disulphide, iron sulphide or phosphates of low
shear strength and lamellar structures, does not appear to be
the primary cause of low friction and wear.
The authors have, therefore, undertaken a programme to
synthesise and study the chemistry and tribochemical reactions
in relation to friction and wear characteristics of hydrocarbonsoluble
thiophosphoro derivatives of alkyl phenol, alcohols and
fatty esters, in order to establish relationships between the reactivity,
chemical nature and crystal structure of films formed
on rubbing surfaces, and antifriction and antiwear characteristics.
Molybdenum salts of various phosphorothio derivatives of
pentadecylphenol and lauryl oleate of specific structures have
been synthesised, and the friction and wear properties of their
blends in mineral oil base stock have been studied. It can be
clearly inferred from the results that type of bonding between
sulphur, phosphorus and molybdenum, and reactivity of these
derivatives with rubbing surfaces, determine their frictionreducing
and anti wear characteristics. Their reactivity with
iron and the nature of films formed are under investigation.
friction, wear,
molybdenum
sulphurised, thiophosphoro derivatives,
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| Language |
en_US
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| Subject |
Thiophosphoro Derivatives
Wear |
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| Title |
Friction and Wear Characteristics of Organic Thiophosphoro Derivatives- A Critical Appraisal
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| Type |
Article
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