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BORATE ESTER ANTIWEAR TECHNOLOGY
By Thomas J. Karol, Ph.D. and
Steven G. Donnelly (Manager of Technical Services)
R.T. Vanderbilt Company, Inc. is promoting a borate friction modifier (VANLUBE® 289). We have found unexpectedly good antiwear performance for this additive. VANLUBE 289 is a non-phosphorous, non-sulfur additive which provides antiwear performance exceeding ZnDTPs in our bench screening test (Modified Falex Pin & Vee Block Procedure). VANLUBE 289 is an excellent candidate for an antiwear agent to meet the proposed ILSAC GF-4 Performance Standards that places limits on both phosphorus ( 0.05% max.) and sulfur (0.50% max.) in the finished passenger car engine oil . Please contact our R.T. Vanderbilt Petroleum Sales Department at Petroleum Group to request a sample.
Chemistry of VANLUBE 289
A mixture of alkyl diethanol amides and mono glycerides where R represents a carbon chain from C7-C17. VANLUBE 289 is a partially borated conversion with 1 m% boron.
The borates are believe to exist mainly in the following forms:
The following animation depicts how the diol and borated diol species are attracted and coordinated to the metal surface. This action brings the oil into more intimate contact with the surface which thus affords better wear properties and acts as a lubricity agent. The borate in addition can form an iron borate with the metal surface and as a result applies a hard surface layer directly to the metal. This affords an additional level of protection against wear.
click to view animation The excellent antiwear performance of this liquid additive at 1% treatment is shown in Table 1. Table 1
VANLUBE 289 was compared to zinc dithiophosphate in oil by Falex Pin + Vee block, VANLUBE 289 is borated OD-869B (ashless friction modifier) with 1.0 m% boron.
( ) Duplicate Tests
VANLUBE 289 ran the whole time, 60 minutes, while duplicate runs with ZnDTP failed within 10 seconds from the start. The 60 minute time for VANLUBE 289 is not a fluke, in other tests it ran ~ 192 and ~ 86 minutes before it failed.
click to view results
click to: Other Additives Useful with VANLUBE 289 for Formulating Passenger Car Engine Oils & Lubricants In General
The information presented herein, while not guaranteed, was prepared by technical personnel and, to the best of our knowledge and belief, is true and accurate as of the date hereof. No warranty, representation or guarantee, express or implied, is made regarding accuracy, performance, stability, reliability or use. This information is not intended to be all-inclusive, because the manner and conditions of use, handling, storage and other factors may involve other or additional safety or performance considerations. The user is responsible for determining the suitability of any material for a specific purpose and for adopting such safety precautions as may be required. R.T. Vanderbilt Holding Company, Inc. does not warrant the results to be obtained in using any material, and disclaims all liability with respect to the use, handling or further processing of any such material. No suggestion for use is intended as, and nothing herein shall be construed as, a recommendation to infringe any existing patent or to violate any federal, state or local law or regulation.
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R.T. Vanderbilt Holding Company, Inc.
30 Winfield Street
Norwalk, CT 06856