According to the evaluating standards of two-stroke gasoline engine oil's lubricity published by ISO and Sinopec, the lubricity of two-stroke lubricant’s base oils that mainly constituted by trimethylol propane ester (TMP) has been investigated. The research results indicated that TMP had excellent high-temperature lubricity under the engine operating conditions. The lubricity was better when using higher high-temperature viscosity TMP. The mixed ester had better lubricity than any single composition in the mixture. But the effect of anti-wear additives on lubricity in ester base oils could not be investigated by the evaluating method of lubricity.
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吴照毅,吕刚,居荫诚,解世文.酯基二冲程汽油机润滑油润滑性试验[J].农业机械学报,2007,38(2):157-159.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(2):157-159.