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Title:   Author  item
                                            Doll, Kenneth

                                                         - *Ken*item
                                            SHARMA, BRAJENDRA - University Of Illinoisitem
                                            HEISE, GLENN - Anderson Development Companyitem
                                            MYSLINSKA, MALGORZATA - Anderson Development Company
  Submitted to: International Joint Tribology Conference
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 5/17/2012
                                    Publication  Date: 10/8/2012
                                    Citation: Doll, K.M., Sharma, B.K., Heise, G.L., Myslinska, M. 2012. Formulation of a biobased gear oil utilizing boron technology [abstract]. International Joint Tribology Conference. p. 41.Interpretive Summary:
                                Technical Abstract: A new additive was produced from a natural oil and boron. The synthesis involves the use of the epoxidized form of soybean oil which then undergoes a catalytic ring opening to produce the additive material. Due to their remaining triacylglycerol structure, the products are highly compatible with bio-based lubricants and due to their covalent boron attachments, show effective properties for the reduction of wear.

Some performance examples: Using a traditional Falex 4-ball wear test, the scar diameter observed in a soybean oil lubricant could be reduced from 0.61 mm to 0.41 mm by the inclusion of 1% of the additive. A second generation additive, while not as effective at reducing wear, was able to increase the oxidation onset temperature of soybean oil under pressurized oxygen by 14 deg C.

Next, these additives were tested in a formulation of biobased gear oil composed of heat treated soybean oil and synthetic esters. In the best formulation, these additives were able to surpass the oxidation onset of a gear oil that was formulated with commercially available additives, while giving nearly as good of performance by wear scar analysis. This oxidation onset value, of 258 deg C, approaches  that of off-the-shelf gear oils.

Overall, these new additives are strong performers which can be made using simple chemistry. Their properties combined with their high biobased content are valuable assets in the search for biobased lubricants and gear oils.


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