应用化学 ›› 1990, Vol. 0 ›› Issue (5): 64-67.

• 研究论文 • 上一篇    下一篇

二烷基二硫代磷酸锌的平衡解离及其与低氮分散剂的相互作用

陆群, 杨小震, 朱善农   

  1. 中国科学院化学研究所 北京 100080
  • 收稿日期:1989-10-28 修回日期:1990-05-04 出版日期:1990-10-10 发布日期:1990-10-10

DISSOCIATION OF ZINC DIALKYLDITHIOPHOSPHATE AND ITS INTERACTION WITH SUCCINIMIDE DISPERSANT

Lu Qun, Yang Xiaozhen, Zhu Shannong   

  1. Institute of Chemistry, Academia Sinica, Beijing 100080
  • Received:1989-10-28 Revised:1990-05-04 Published:1990-10-10 Online:1990-10-10

摘要: 本文用31P-NMP研究了二烷基二硫代磷酸锌(ZDP)在内燃机基础油体系中的作用,发现在低浓度下从ZDP解离出一个含磷核的组份,化学位移为86ppm。表明ZDP在油中的溶解存在着依赖于浓度的化学平衡,通过这种平衡解离在ZDP与分散剂体系中的变化,研究了添加剂间的相互作用机理。

关键词: 磷核磁共振谱, 二烷基二硫代磷酸锌相互作用, 添加剂

Abstract: The system of zinc dialkyldithiophosphate(ZDP)in lubricating base oil has been studied by using 31P-NMR. At low concentration of ZDP a phosphorated compound resonating at chemical shift of 86ppm was found. This indicates that there exists a chemical equilibri-um which is related to ZDP dissociation in the base oil and depends on the concentration of ZDP. A mechanism was proposed about the interaction between ZDP and succinimide dispersant.

Key words: 31PrNMR, zine dialkyldithiophosphate, interaction, additive