壳聚糖/三聚磷酸钠凝胶粒子稳定Pickering乳液的研究

doi:10.13218/j.cnki.csdc.2015.06.002

日用化学工业 ›› 2015, Vol. 45 ›› Issue (6): 306-310.doi: 10.13218/j.cnki.csdc.2015.06.002

壳聚糖/三聚磷酸钠凝胶粒子稳定Pickering乳液的研究

曾海燕, 曹光群, 杨成, 董伟

江南大学化学与材料工程学院,江苏无锡 214122

收稿日期:2015-01-14 出版日期:2015-06-22 发布日期:2019-04-01
通讯作者: 曹光群,高级工程师,E-mail:gqcao59@126.com。
作者简介:曾海燕(1990-),女,江西人,硕士研究生,E-mail:2536690340@qq.com。

Study on Pickering emulsions stabilized by gel nanoparticles composed of chitosan and sodium tripolyphosphate

ZENG Hai-yan, CAO Guang-qun, YANG Cheng, DONG Wei

School of Chemical and Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China

Received:2015-01-14 Online:2015-06-22 Published:2019-04-01

摘要/Abstract

摘要： 通过阳离子壳聚糖(CS)和聚阴离子三聚磷酸钠(STPP)发生离子交联反应制备得到粒径为50 nm左右的CS/STPP凝胶纳米粒子。用CS/STPP纳米粒子乳化液体石蜡制得Pickering乳液,并研究了不同因素对乳液的影响。结果表明:增加颗粒质量分数,乳液稳定性变好,液滴粒径变小;通过调节分散相pH和NaCl浓度可成功制备出均一稳定的乳液;乳液的流变性分析表明,随着颗粒质量分数的增加,乳液黏度更高并表现出更强的弹性行为。

关键词: Pickering乳液, 壳聚糖/三聚磷酸钠纳米粒子, 稳定性, 流变性

Abstract: Gel nanoparticles composed of chitosan (CS) and sodium tripolyphosphate (STPP) with the size about 50 nm were prepared via ionic crosslinking reaction between positively charged primary amino groups of CS and the negatively charged groups of STPP.The CS/STPP nanoparticles were adopted to emulsify liquid paraffin to form Pickering emulsion.Separate factors that affect the emulsions were examined.Results showed that increase of mass fraction of the nanoparticles will improve the stability and reduce the droplet size of the emulsion.Via the adjustment of pH of the dispersion phase and concentration of NaCl,a uniform and stable emulsion can be obtained successfully.Rheological study indicated that as the increase of mass fraction of nanoparticles,viscosity of the emulsion will be raised and its elastic behavior will be intensified.

Key words: Pickering emulsion, chitosan/sodium tripolyphosphate nanoparticles, stability, rheological property

中图分类号:

O648.2+3

曾海燕, 曹光群, 杨成, 董伟. 壳聚糖/三聚磷酸钠凝胶粒子稳定Pickering乳液的研究[J]. 日用化学工业, 2015, 45(6): 306-310.

ZENG Hai-yan, CAO Guang-qun, YANG Cheng, DONG Wei. Study on Pickering emulsions stabilized by gel nanoparticles composed of chitosan and sodium tripolyphosphate[J]. China Surfactant Detergent & Cosmetics, 2015, 45(6): 306-310.

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壳聚糖/三聚磷酸钠凝胶粒子稳定Pickering乳液的研究

Study on Pickering emulsions stabilized by gel nanoparticles composed of chitosan and sodium tripolyphosphate

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