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›› 2007, Vol. 7 ›› Issue (1): 67-70.

• 反应与分离 • 上一篇    下一篇

Span/Tween为混合表面活性剂的微乳体系研究及纳米铁制备

刘海水,李铁龙,金朝晖,弓彦章,张云霞   

  1. 南开大学环境科学与工程学院
  • 出版日期:2007-02-20 发布日期:2007-02-20

Microemulsion with Span/Tween as Mixed-surfactant and Synthesis of Iron Nanoparticles

LIU Hai-shui,LI Tie-long,JIN Zhao-hui,GOAN Yan-zhang,ZHAGN Yun-xia   

  1. College of Environmental Science and Engineering, Nankai University
  • Online:2007-02-20 Published:2007-02-20

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摘要： 通过对异辛烷/Span80-Tween60/正丁醇、植物油/Span80-Tween60/正丁醇以及植物油/Span85-Tween60/正丁醇3种不同配比体系的研究，结果表明异辛烷/Span80-Tween60/正丁醇微乳体系较适合作微反应器，当体系HLB值为14、乳化剂含量(表面活性剂与油相质量比)为1:2，Co/S(助表面活性剂与复合表面活性剂质量比)为1:2时，可得到理想的微乳液体系. 利用该体系可制得粒径可控制在80 nm左右的纳米铁粒子.

关键词: 微乳液, 植物油, Span80, Tween60, Span85, 合成, 纳米铁粒子

Abstract: Three kinds of microemulsion systems with different compositions formed by iso-octane/Span80-Tween60/n-butanol, edible oil/Span80-Tween60/n-butanol and edible oil/Span80-Tween60/n-butanol were studied. The system of iso-octane/Span80-Tween60/ n-butanol is the best choice for the purpose of microreactor when the hydrophile-lipophile balance value is 14, content of emulsion (mass ratio of surfactant to oilphase) is 0.5, Co/S=0.5 (Co/S is the mass ratio of co-surfactant-to-surfactant). The nanosized iron particles with average diameter of 80 nm were synthesized with the system.

Key words: microemulsion, edible oils, Span80, Tween60, Span85, synthesis, iron nanoparticles