纳米流体
分散剂
材料科学
均质化(气候)
聚乙二醇
色散(光学)
超声
化学工程
纳米颗粒
纳米化学
二氧化钛
热稳定性
纳米技术
复合材料
生物多样性
生态学
工程类
物理
光学
生物
作者
Laura Fedele,Laura Colla,Sergio Bobbo,Simona Barison,Natália Tomašovičová
标识
DOI:10.1186/1556-276x-6-300
摘要
Abstract In the recent years, great interest has been devoted to the unique properties of nanofluids. The dispersion process and the nanoparticle suspension stability have been found to be critical points in the development of these new fluids. For this reason, an experimental study on the stability of water-based dispersions containing different nanoparticles, i.e. single wall carbon nanohorns (SWCNHs), titanium dioxide (TiO 2 ) and copper oxide (CuO), has been developed in this study. The aim of this study is to provide stable nanofluids for selecting suitable fluids with enhanced thermal characteristics. Different dispersion techniques were considered in this study, including sonication, ball milling and high-pressure homogenization. Both the dispersion process and the use of some dispersants were investigated as a function of the nanoparticle concentration. The high-pressure homogenization was found to be the best method, and the addition of n -dodecyl sulphate and polyethylene glycol as dispersants, respectively in SWCNHs-water and TiO 2 -water nanofluids, improved the nanofluid stability.
科研通智能强力驱动
Strongly Powered by AbleSci AI