化工进展 ›› 2015, Vol. 34 ›› Issue (04): 1055-1058.DOI: 10.16085/j.issn.1000-6613.2015.04.026

• 材料科学与技术 • 上一篇    下一篇

纳米碳化硼在水基础液中的分散稳定性

宋铮铮, 吴张永, 莫子勇, 王娴, 王娟   

  1. 昆明理工大学机电工程学院, 云南 昆明 650500
  • 收稿日期:2014-09-19 修回日期:2014-10-22 出版日期:2015-04-05 发布日期:2015-04-05
  • 通讯作者: 吴张永,教授,硕士生导师.E-mail zhyongwu63@163.com.
  • 作者简介:宋铮铮(1991—),男,硕士研究生.E-mail zzsong915@163.com.
  • 基金资助:
    国家自然科学基金项目(51165012).

Dispersing stability of nano boron carbide in water-based fluid

SONG Zhengzheng, WU Zhangyong, MO Ziyong, WANG Xian, WANG Juan   

  1. School of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
  • Received:2014-09-19 Revised:2014-10-22 Online:2015-04-05 Published:2015-04-05

摘要: 以纳米碳化硼粉体为纳米材料,聚乙二醇、羧甲基纤维素钠为分散剂,蒙脱石为抗沉降稳定剂,RO反渗透膜处理水为分散介质,采用两步法制备了水基纳米碳化硼溶液.研究了不同分散条件对纳米碳化硼在水基础液中的分散情况,并采用沉降稳定性分析、流变特性分析来评价其分散效果.实验结果表明,分散剂种类、分散剂质量分数、纳米碳化硼的粒径、纳米碳化硼的质量分数都会对溶液分散稳定性产生一定的影响.研究得出,用质量分数为0.4%的聚乙二醇(PEG600)作为分散剂、用粒径为60nm的纳米碳化硼且质量分数为0.8%~0.9%时,能够使得纳米碳化硼在水基础液中达到最佳稳定分散的效果.

关键词: 纳米粒子, 水基体系, 分散稳定性, 沉降, 黏度

Abstract: Water-based nano boron solution was prepared with nano boron carbide powder as nanomaterial,polyethylene glycol,sodium carboxymethyl cellulose as dispersing agent,montmorillonite as antisedimentation stabilizer,RO reverse osmosis membrane-treated water as dispersion medium by using the two-step method. To study the different dispersion conditions of nano boron carbide dispersion in water-based fluid,sedimentation stability and rheological characteristics analysis were used to evaluate its dispersion effect. The experimental results showed that dispersant type,mass fraction of dispersant,particle size of nano boron carbide,mass fraction of nano boron carbide could affect stability of solution dispersion. Polyethylene glycol 600 as a dispersant,mass fraction of 0.4%,60nm particle size of nano-boron carbide and mass fraction of 0.8%-0.9%,could achieve stable dispersion of nano boron carbide in water-based fluid.

Key words: nanoparticles, water-based fluid, dispersion stability, sedimentation, viscosity

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