应用化学 ›› 1998, Vol. 0 ›› Issue (6): 83-85.

• 研究论文 • 上一篇    下一篇

高水相W/O型乳化膏体油膜稳定性的研究

徐国财   

  1. 淮南工业学院化工系 淮南232001
  • 收稿日期:1998-03-23 修回日期:1998-07-27 出版日期:1998-12-10 发布日期:1998-12-10
  • 基金资助:
    煤炭科学基金(95建10709)

Stability of High Water Content Emulsion Membrane

Xu Guocai   

  1. Department of Chemical Engineering Huainan Institute of Technology, Huainan 232001
  • Received:1998-03-23 Revised:1998-07-27 Published:1998-12-10 Online:1998-12-10

摘要: 高水相W/O型乳液是指水相体积占74%以上,属于高度不稳定的分散体系[1,2].乳化炸药的问世,使这种高水相W/O型乳液有了新的实际应用。这种炸药是90%~95%重的硝酸铵盐(占水相80%~90%重)水溶液高度分散在5%~10%的油相中构成W/O型乳状液,高含量的NH4NO3使这种乳液呈膏状,高度过饱和硝酸铵水溶液内相使这种膏体极不稳定,为了提高这种乳化膏体的稳定性,对油相材料等各方面进行了大量研究[3,4],而高无机盐含量的乳化膏体连续相油膜的稳定性尚无人进行过研究.利用动态水可表征W/O型乳液油膜的稳定性[5],通过水流对油膜强化作用,使油膜两边因NH4NO3电解质浓差悬殊而产生较高电动势,稳定性良好的油膜应能够抑制内相中各种离子的外泄.基于这种思想,本文报道用恒界面 动态水萃取乳化膏体中NH4NO3的方法来研究乳化膏体连续相油膜的稳定性.

关键词: 硝酸铵, 聚异丁烯丁二酰亚胺, 水/油型乳液, 膜稳定性

Abstract: Emulsive plastes were prepared with high NH4NO3 aqueous solution as dispersion phase and polyisobutylene succinimide emulsifying agene as continuous phase. The stability of oil membrane of the plastes has been examined in organic dispersing agents and moving water, respectively. The oil membrane was found to be more stable in cyclohexane, paraffin oil and acidic moving water than in alkaline moving water.

Key words: ammonium nitrate, polyisobutylene succinimide, water/oil emulsion, membrane stability