| 摘要 |
An additive composition comprising a lubricity enhancer and a conductivity-improving additive, a fuel oil composition comprising the additive composition, and a use of the additive composition are provided, wherein the combination of the lubricity enhancer and the conductivity-improving additive can provide the fuel oil composition both good lubricity and good conductivity. An additive composition comprises: a lubricity enhancer comprising a salt formed by the reaction of a carboxylic acid with di-n-butylamine; and a conductivity-improving additive comprising a combination of (a) a polymeric condensation product formed by the reaction of an aliphatic aldehyde or ketone, or a reactive equivalent with at least one ester of p-hydroxybenzoic acid and (b) a copolymer, terpolymer or polymer of acrylic acid or methacrylic acid or a derivative thereof. The carboxylic acid comprises a fatty acid or a mixture of fatty acids, preferably tall oil fatty acid, rape seed oil fatty acid, soy bean fatty acid, or sunflower oil fatty acid. The at least one ester of p-hydroxybenzoic acid comprises (i) a straight or branched chain C1-C7 alkyl ester of p-hydroxybenzoic acid, (ii) a branched chain C8-C16 alkyl ester of p-hydroxybenzoic acid, or (iii) a mixture of long chain C8-C18 alkyl esters of p-hydroxybenzoic acid, wherein at least one of the alkyls is branched. |
