Analysis of fluorinated interactions in plain ZDDP and fully formulated oils using design of experiment (DOE) and chemistry characterization of tribofilms in boundary lubrication under extreme loading conditions

Analysis of fluorinated interactions in plain ZDDP and fully formulated oils using design of... Purpose – The purpose of this paper is to describe very reproducible boundary lubrication tests, conducted as part of design of experiment (DOE) to study the behavior of fluorinated catalyst mixed with polutetrafluoroethylene or Teflon (PTFE) in developing environmentally friendly (reduced P and S) anti‐wear additives for future engine oil formulations. The paper presents both the statistical and experimental solution to the fluorinated interactions in fully formulated (F‐fully formulated) and plain ZDDP (F‐plain) oils. Design/methodology/approach – The wear performance of fluorinated additive in combination with conventional commercial oil and ZDDP plain oil were investigated using DOE software. Several chemistry combinations were prepared and tested under extreme boundary lubrication (385 N with maximum Hertzian contact pressure of 2.72 GPa). Wear and frictional properties were evaluated using DOE and the interactions of fluorinated mix with minimum phosphorus were studied and compared with respect to fully formulated and plain ZDDP oils. Findings – The optimized desirability shows the best condition that leads to more consistency in the breakdown of the tribofilm for a fixed contact load and fixed amount of fully formulated ZDDP oil. The influence of catalyst and PTFE fluorinated mix were examined. Scanning electron microscopy with chemistry analysis was developed. Hardness of the tribofilms, X‐ray of the wear track and Auger spectroscopy confirm the present of fluorine and phosphorus. Originality/value – To ensure the reliability of the model, two original tests were conducted on the fully formulated and plain oil with minimum fluorinated mix. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Analysis of fluorinated interactions in plain ZDDP and fully formulated oils using design of experiment (DOE) and chemistry characterization of tribofilms in boundary lubrication under extreme loading conditions

Industrial Lubrication and Tribology, Volume 65 (3): 16 – Apr 19, 2013

Loading next page...
 
/lp/emerald-publishing/analysis-of-fluorinated-interactions-in-plain-zddp-and-fully-gVP4XeBh6v
Publisher
Emerald Publishing
Copyright
Copyright © 2013 Emerald Group Publishing Limited. All rights reserved.
ISSN
0036-8792
DOI
10.1108/00368791311311150
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to describe very reproducible boundary lubrication tests, conducted as part of design of experiment (DOE) to study the behavior of fluorinated catalyst mixed with polutetrafluoroethylene or Teflon (PTFE) in developing environmentally friendly (reduced P and S) anti‐wear additives for future engine oil formulations. The paper presents both the statistical and experimental solution to the fluorinated interactions in fully formulated (F‐fully formulated) and plain ZDDP (F‐plain) oils. Design/methodology/approach – The wear performance of fluorinated additive in combination with conventional commercial oil and ZDDP plain oil were investigated using DOE software. Several chemistry combinations were prepared and tested under extreme boundary lubrication (385 N with maximum Hertzian contact pressure of 2.72 GPa). Wear and frictional properties were evaluated using DOE and the interactions of fluorinated mix with minimum phosphorus were studied and compared with respect to fully formulated and plain ZDDP oils. Findings – The optimized desirability shows the best condition that leads to more consistency in the breakdown of the tribofilm for a fixed contact load and fixed amount of fully formulated ZDDP oil. The influence of catalyst and PTFE fluorinated mix were examined. Scanning electron microscopy with chemistry analysis was developed. Hardness of the tribofilms, X‐ray of the wear track and Auger spectroscopy confirm the present of fluorine and phosphorus. Originality/value – To ensure the reliability of the model, two original tests were conducted on the fully formulated and plain oil with minimum fluorinated mix.

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Apr 19, 2013

Keywords: Oils; Lubrication; Additives; Boundary lubrication; Tribofilm; Design of experiment; Fluorinated fully formulated and plain oils

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off