Abstract
The excellent performance of dispersion makes poly-isobutene succinimide widely used in engine's lubricating oils. But this additive has no anti-oxidation ability, anti-friction and anti-wear behaviors. In engine’s oil, it must be used with antioxidants, extreme-pressure additives and detergents. Here the authors suggested that by metallizing the succnimide, many useful lubricating chemical properties would be affiliated to this additive. The nitrogen radicals of succinimide can combine with metal ions, such as transition metal ions, forming coordination compounds. In this article, the stannous ion was chosen as coordination ion that has stronger reducibility. The stannous chloride reacts with succinimide at 170°C, forming a new complex. The lubrication chemical experiments have shown that such complex has better performances as lubricating oil's additive, for example excellent dispersing ability, higher extreme-pressure performance, and good reducibility. All the appended abilities of poly-isobutene succinimide are ascribed to the introduction of stannous ion.
Published Version
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