Lubricant Additives
24 Lubricant Additives: Chemistry and Applications TABLE 1.4 Metal Deactivators for Lubricants Surface Passivators Basic Structu ...
Antioxidants 25 each other into a chain termination step. As depicted in Figure 1.10, a hydrogen atom is donated from one phenox ...
26 Lubricant Additives: Chemistry and Applications 1.10.6.2 Aromatic Amines A particularly effective class of aromatic amines us ...
Antioxidants 27 an equal mole basis, in theory, ADPAs can quench twice as many alkyl peroxy radicals as a mono HP under low-temp ...
28 Lubricant Additives: Chemistry and Applications radical is destroyed. It has been reported that such regeneration process can ...
Antioxidants 29 mechanisms. In these reactions, phosphite is oxidized to corresponding phosphate, with the hydroperoxide and the ...
30 Lubricant Additives: Chemistry and Applications Heterosynergism occurs when antioxidants act by a different mechanism and hen ...
Antioxidants 31 Owing to the limitation of laboratory setup, a single bench test cannot address all oxidation aspects of a real ...
32 Lubricant Additives: Chemistry and Applications TABLE 1.5Conditions of Oxidation Test MethodsTest Test Designation Oxidation ...
Antioxidants 33 is complete, deposit formed on the depositor rod is determined by differential weighting. The 33C protocol was f ...
34 Lubricant Additives: Chemistry and Applications antioxidants. The “dry” TOST method is a potential alternative to the origina ...
Antioxidants 35 providing longer protection time against oxidation. Mixtures of the ADPA and the HP at 0.4 wt% each in the oils ...
36 Lubricant Additives: Chemistry and Applications test temperature (150°C), the OIT of the blend containing ADPA was ~600 min, ...
Antioxidants 37 ADPA and the HP is powerful in the inhibition of different stages of oil oxidation as demon- strated. It is, how ...
38 Lubricant Additives: Chemistry and Applications represents an API group from I to IV. The HP and the ADPA are the same as bef ...
Antioxidants 39 However, the naturally occurring sulfur species that can function as antioxidants have also been largely removed ...
40 Lubricant Additives: Chemistry and Applications Continued Product Company Chemistry Ethanox 4827J Albemarle Multiring t-butyl ...
Antioxidants 41 Continued Product Company Chemistry Vanlube 81 RT Vanderbilt Dioctyl diphenylamine Vanlube 7723 RT Vanderbilt Me ...
42 Lubricant Additives: Chemistry and Applications Mikeska, L.A. and C.A. Cohen. Mineral oil stabilizing agent and composition ...
Antioxidants 43 Karol, T.J., S.G. Donnelly, and R.J. Hiza. Antioxidant additive compositions and lubricating composi- tions con ...
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