纳米颗粒/矿物冷冻油的流变特性研究

毕胜山 1; 史琳 2

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纳米颗粒/矿物冷冻油的流变特性研究

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- 纳米颗粒/矿物冷冻油的流变特性研究
- Rheological Properties of Mineral Oil and Nanoparticles Mixture
- 西安交通大学学报 2010年44卷第1期页码：27-30
- 作者机构：
  
  工程教育部重点实验室,北京,100084
- 作者简介：
- 基金信息：
  
  : 2009-05-27. 作者简介: 毕胜山(1978-), 男, 讲师. 基金项目: 国家自然科学基金资助项目(50806060);高等学校博士学科点专项科研基金资助项目(200806981012)
- DOI：
  中图分类号： TK124
- 网络首发：2010-01-10，
  
  纸质出版：2010
- 稿件说明：
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毕胜山 1, 史琳 2. 纳米颗粒/矿物冷冻油的流变特性研究[J]. 西安交通大学学报, 2010,44(1):27-30.

Rheological Properties of Mineral Oil and Nanoparticles Mixture[J]. 2010, 44(1): 27-30.
毕胜山 1, 史琳 2. 纳米颗粒/矿物冷冻油的流变特性研究[J]. 西安交通大学学报, 2010,44(1):27-30. DOI：

Rheological Properties of Mineral Oil and Nanoparticles Mixture[J]. 2010, 44(1): 27-30. DOI：

摘要

对纳米颗粒/矿物冷冻油的流变特性进行了全面的实验研究

重点分析了颗粒浓度、颗粒种类和温度对冷冻油流变特性的影响.结果表明:对于纳米颗粒TiO

/矿物冷冻油

当w(TiO

)≤0.2%时

为牛顿流体

当w(TiO

)>0.2%时

表现为剪切变稀特性.纳米颗粒TiO

/矿物冷冻油的黏度大于纯质冷冻油

且随着颗粒质量分数的提高而增大

当w(TiO

)=0.4%时

黏度可提高11.2%

拟合得到的混合物黏度模型预测值与实验值吻合良好.纳米颗粒种类对混合物的流变特性有一定的影响

这与颗粒的形状有关.纳米颗粒/矿物冷冻油的黏温曲线趋势与纯油相似.

Abstract

The rheological properties of the mixture of nanoparticles and mineral oil were investigated experimentally. The results indicate that the mixtures of TiO

nanoparticles and mineral oil are the Newtonian fluid when the nanoparticles mass fraction is less than or equal to 0.2%

and the mixture viscosity decreases with the increase in the shear rate when the fraction is larger than 0.2%. The viscosity of the mixture of TiO

nanoparticles and mineral oil is greater than that of the mineral oil

and it increases with the increase in the nanoparticles fractions. When the nanoparticles fraction is 0.4%

the viscosity can increase by 11.2%. The experimental data are consistent with the data calculated from the model prediction. Different kinds of the nanoparticles have some effect on the rheological properties of the mixtures because of the particle shape. In addit

ion

the viscosity-temperature curve of the mixture is similar to that of pure mineral oil.

关键词

Keywords

references

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