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  • 标题:How to Decrease the Viscosity of Suspension with the Second Fluid and Nanoparticles?
  • 本地全文:下载
  • 作者:Menghan Xu ; Haifeng Liu ; Hui Zhao
  • 期刊名称:Scientific Reports
  • 电子版ISSN:2045-2322
  • 出版年度:2013
  • 卷号:3
  • 期号:1
  • DOI:10.1038/srep03137
  • 语种:English
  • 出版社:Springer Nature
  • 摘要:According to recent research reports, addition of small amounts of a secondary fluid to a suspension could dramatically increase viscosity of suspension. Results of this study indicate another interesting behavior that the secondary fluid could form a thin hydrophobic membrane around particle surface and significantly decrease the viscosity and yield stress of the suspension. To enhance the surface hydrophobicity, hydrophobic nanoparticles (nano-CaCO3) were added to the hydrophobic membrane of particles to improve the surface roughness, and to generate composite particles having a hierarchical structure similar to the micromorphology of lotus leaf. This composite particle has a higher contact angle, and the suspension of composite particles has a lower viscosity and a lower yield stress.
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