高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (1): 80.

• 研究简报 • 上一篇    下一篇

脲基氨基甲酸酯化合物的合成及应用研究

解世文1, 董丽美2, 杨礼河2   

  1. 1. 天津大学内燃机研究所, 天津, 300072;
    2. 天津大学应用化学系, 天津, 300072
  • 收稿日期:1997-05-12 出版日期:1998-01-24 发布日期:1998-01-24
  • 通讯作者: 解世文,男,58岁,教授.
  • 作者简介:解世文,男,58岁,教授.
  • 基金资助:

    中国石油化学工业总公司科技基金项目资助课题.

The Synthesis and Applied-research of Ureido-urethane

XIE Shi-Wen1, DONG Li-Mei2, YANG Li-He2   

  1. 1. Internal Combustion Engine Research Institute. Tianjin University, Tianjin, 300072;
    2. Department of Application Chemistry, Tianjin University, Tianjin, 300072
  • Received:1997-05-12 Online:1998-01-24 Published:1998-01-24

关键词: 脲基氨基甲酸酯, 清净性, 分散性, 电控喷射模拟试验

Abstract: Due to high temperature and acid substance in exhaust, gasoline usually produces deposits on the chamber and gasoline jet of intake air system in engines of a car, carbonating on the jet, even blocking the jet, make engine fail to start and run. The methods of selecting optimum engine design have less effect on reducing deposits and carbonating than does that of adding detergent-dispersant additive into gasoline. Anew compound──ureido-urethane is synthesized by reacting di-iso-cyanate with alcohols and amines. After experiments of selecting optimum reaction condition, testing solubility and percentage of relative oxidation,and evaluating in the PFI imitating device. The results show that the detergent-dispersant property of that compound is superior to the new product of USA(paradyne 748) and compound produced in Shanghai.

Key words: Ureido-urethane, Detergence, Dispersity, Port fuel injector simulating rig test

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