应用化学 ›› 1988, Vol. 0 ›› Issue (1): 78-81.

• 研究简报 • 上一篇    下一篇

脂肪醇对环氧乙烷环氧丙烷嵌段共聚物破乳效果的影响 Ⅱ.O/W型乳状液的破坏

傅绍斌1, 李外郎2, 戴乐蓉2, 顾惕人2   

  1. 1. 襄樊大学应化系, 湖北襄樊;
    2. 北京大学化学系
  • 收稿日期:1987-03-10 修回日期:1987-06-08 出版日期:1988-02-10 发布日期:1988-02-10

THE EFFECTS OF NORMAL ALIPHATIC ALCOHOLS ON THE DEMULSIFIBILITY OF POLYOXYETHYLENE-POLYOXYPROPYLENE COPOLYMERS Ⅱ.FOR O/W TYPE EMULSION

Fu Shaobin1, Li Wailang2, Dai Lerong2, Gu Tiren2   

  1. 1. Xiangfan University, Laboratory of Chemistry;
    2. Department of Chemistry, Peking University
  • Received:1987-03-10 Revised:1987-06-08 Published:1988-02-10 Online:1988-02-10

摘要: 环氧乙烷(EO)环氧丙烷(PO)的共聚物有较好的破乳效果,是目前较理想的破乳剂,已在油田得到应用.这类表面活性剂的特点是只要适当调节EO和PO的比例,就既可用作W/O型乳状液的破乳剂,也可用作O/W型乳状液的破乳剂,但关于后者的研究很少.前已报导加入脂肪醇可显著提高这类表面活性剂对W/O型乳状液的破乳效果.本文继续研究脂肪醇对这类表面活性剂破坏O/W型乳状液的影响.

关键词: 表面活性剂, 嵌段共聚物, 破乳, 脂肪族醇, O/W型乳状液

Abstract: The effects of normal aliphatie alcohols (C2-C7)on the demulsifibility of five demulsifiers (block eopolymers of polyoxyethylene and polyoxypropylene) for O/W type emulsion have been studied. The results show that the addition of alcohols (2.5vol.%) greatly enhances the demulsification, and n-butyl and n-amyl alcohols are found to be the most effective.

Key words: Surfactant, Block copolymer, Demulsification, Aliphatic alcohols, O/W type emulsion