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化学学报
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化学学报 ›› 2012, Vol. 70 ›› Issue (02): 133-136.DOI: 10.6023/A1106281 上一篇    下一篇

研究论文

粒子与聚合物协同稳定高内相Pickering乳液

邹声文, 王朝阳, 魏增江, 刘浩, 童真   

  1. 华南理工大学材料科学研究所 广州 510640
  • 投稿日期:2011-06-28 修回日期:2011-09-26 发布日期:2012-02-25
  • 通讯作者: 王朝阳 E-mail:zhywang@scut.edu.cn
  • 基金资助:

    国家自然科学基金(Nos.20874030, 50973034);中央高校基本科研业务费;广东省科技攻关(No.2010B010800017);教育部创新团队(No.IRT0827)资助项目.

Synergistic Stabilization of High Internal Phase Pickering Emulsions by a Mixture of Nanoparticle and Polymer

Zou Shengwen, Wang Chaoyang, Wei Zengjiang, Liu Hao, Tong Zhen   

  1. Research Institute of Materials Science, South China University of Technology, Guangzhou 510640
  • Received:2011-06-28 Revised:2011-09-26 Published:2012-02-25
  • Supported by:

    Project supported by National Natural Science Foundation of China (Nos.20874030, 50973034);Fundamental Research Funds for the Central Universities;Planned Science and Technology Project of Guangdong Province (No.2010B010800017) and Program for Changjiang Scholars and Innovative Research Team in University (No.IRT0827).

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选用二氧化硅纳米粒子(H30)和聚(乳酸-羟基乙酸)共聚物(PLGA)为复合稳定剂, 成功制备出内相体积分数高达90%的高内相Pickering 乳液. 对照实验表明: 单独用H30粒子作稳定剂, 内相体积分数上限为75%; 单独用PLGA 作稳定剂, 发生严重相分离, 不能形成乳液. 无机纳米粒子与聚合物之间的协同作用在制备高内相乳液的过程中起到了关键作用. 因此, 使用无机粒子和聚合物作为混合稳定剂制备高内相乳液是一种新型而有效的方法.

关键词: 高内相乳液, Pickering乳液, 二氧化硅纳米粒子, PLGA, 协同效应

In this paper, we have prepared high internal phase Pickering emulsions (Pickering HIPEs) with internal phase volume fraction 90% which are stabilized by a mixture of silica nanoparticles (H30) and poly(L-lactide-co-glycolide) (PLGA). HIPEs with an internal phase volume not more than 75% could be prepared solely by H30 nanoparticles. Using PLGA as stabilizer, phase separation takes place and stable emulsions are not formed. Synergistic interaction between H30 particles and PLGA molecules plays an important part in preparation of HIPEs. Using inorganic particles and polymer as co-stabilizer will be a new and effective method to prepare HIPEs.

Key words: high internal phase emulsion, Pickering emulsion, H30 nanoparticle, PLGA, synergistic effect