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日用化学工业 ›› 2021, Vol. 51 ›› Issue (6): 506-512.doi: 10.3969/j.issn.1001-1803.2021.06.006

• 开发与应用 • 上一篇    下一篇

火山矿泥Pickering乳液的制备及其pH稳定性

方振兴(),王希英(),吴婧,曾颖,潘虹,谢振华   

  1. 黑龙江省科学院自然与生态研究所,黑龙江 哈尔滨 150040
  • 收稿日期:2020-08-14 修回日期:2021-05-26 出版日期:2021-06-22 发布日期:2021-06-22
  • 通讯作者: 王希英
  • 作者简介:方振兴(1985-),男,黑龙江人,助理研究员,硕士,电话:18645692187,E-mail: 290039929@qq.com
  • 基金资助:
    黑龙江省科学院科学研究基金资助(KY2020ZR04);黑龙江省科学院学科领域创新能力提升专项计划资助(XKLY2018HS03);黑龙江省院所基本应用技术研究专项资助(ZNJZ2018HS01);黑龙江省院所基本应用技术研究专项资助(ZNBZ2020ZR09)

Preparation of Pickering emulsion from volcano mud and its pH stability

FANG Zhen-xing(),WANG Xi-ying(),WU Jing,ZENG Ying,PAN Hong,XIE Zhen-hua   

  1. Institute of Natural Resources and Ecology, Heilongjiang Academy of Sciences, Harbin, Heilongjiang 150040, China
  • Received:2020-08-14 Revised:2021-05-26 Online:2021-06-22 Published:2021-06-22
  • Contact: Xi-ying WANG

摘要:

以五大连池火山矿泥颗粒为乳化剂,以橄榄油为油相,去离子水为水相,通过L9(34)正交试验优化制备工艺,制备火山矿泥Pickering乳液,对制备后乳液的粒度、微观形貌、Zeta电位进行分析,并对其pH稳定性进行研究。结果表明,按质量分数橄榄油20%,矿泥乳化颗粒3%,去离子水77%的配方,在40 ℃,80 MPa下进行高压均质可制备稳定Pickering乳液。乳液平均粒度为(10.516±0.141) μm,在冷冻电子显微镜下观察到清晰、完整、均匀的球形乳液颗粒,Zeta电位平均值为-55.01 mV。乳液在pH 4~12区间无乳析现象,在pH 1~14区间无破乳现象。火山矿泥乳化颗粒同时具有亲水性和亲油性,在不添加其他乳化剂的条件下,可以与橄榄油形成稳定的水包油Pickering乳液,并且乳液具有优异的pH稳定性。

关键词: 五大连池, 火山矿泥, Pickering乳液, 制备工艺, pH稳定性

Abstract:

Taking Wudalianchi volcano mud particles as emulsifier, olive oil as oil phase and deionized water as water phase, the preparation process of volcano mud Pickering emulsion was optimized by L9(3 4) orthogonal experiment. The particle size, microstructure and Zeta potential of the emulsion were analyzed, and the pH stability was studied. The results show that stable Pickering emulsion could be prepared by high-pressure (80 MPa)homogenization at 40 ℃ according to the formula in which the mass fractions of olive oil, volcano mud particles and deionized water are 20%, 3% and 77%, respectively. The average particle size of the emulsion is (10.516±0.141) μm. Clear, intact and uniform spherical emulsion particles are observed by Cryo-SEM. The average Zeta potential is -55.01 mV. The emulsion exhibits no creaming in the pH range of 4-12, and demulsification has not been observed in the pH range of 1-14. The volcano mud particles are both hydrophilic and lipophilic. The Pickering emulsion with olive oil as oil phase can be stabilized with volcano mud particles without addition of other chemicals, and the emulsion has excellent pH stability.

Key words: Wudalianchi, volcano mud, Pickering emulsion, preparation process, pH stability

中图分类号: 

  • TQ658