摘要
针对离子液体[BMP][Tf2N]的物性数据缺乏的问题,在101.325 kPa下对[BMP][Tf2N]在温度范围为278.15~338.15 K的黏度和温度范围为298.15~338.15 K的密度、电导率进行了实验测定。结果表明,黏度、密度和电导率在温度范围内的值分别是21.6~193.4 mPa·s、1356.0~1389.2 kg/m^3和0.273~0.893 S/m,黏度、密度和电导率均受温度的影响较大,当压力一定时,[BMP][Tf2N]的黏度、密度随温度的升高而减小;而电导率随温度的升高而增大;分别采用Arrhenius方程、自然对数方程和VFT方程关联[BMP][Tf2N]的黏度、密度和电导率的实验数据表明,模型值与实验值的最大相对误差和平均相对误差分别是2.25%和0.94%,5.74%和5.39%,4.412%和4.245%;进一步说明关联模型与实验数据具有良好的一致性。
In view of the lack of physical properties data of ionic liquid[BMP][Tf2N],the viscosity of[BMP][Tf2N]within the temperature range of 278.15~338.15 K and density and electrical conductivity of[BMP][Tf2N]within temperature range of 298.15~338.15 K at 101.325 kPa were measured.The results showed that the values of viscosity,density and conductivity within the temperature range were 21.6~193.4 mPa·s,1356.0~1389.2 kg/m^3 and 0.273~0.893 S/m,respectively.The results showed that viscosity,density and electrical conductivity are greatly affected by temperature.When the pressure is constant,the viscosity and density of[BMP][Tf2N]decrease with the increase of temperature;while the conductivity increases with the increase of temperature;The Arrhenius equation,the natural logarithm equation and VFT equation are used to correlate the viscosity,density and electrical conductivity experimental data of[BMP][Tf2N]respectively.The results show that the maximum relative error and the average relative error between the model and the experimental date are 2.25%and 0.94%,5.74%and 5.39%,4.412%and 4.245%respectively;further indicating that the theoretical correlation results are consistent with experimental results.
作者
何丽娟
王飒
吴夏梦
李松波
马文清
HE Li-juan;WANG Sa;WU Xia-meng;LI Song-bo;MA Wen-qing(College of Environment and Energy,Inner Mongolia University of Science and Technology,Baotou 014010,China)
出处
《应用化工》
CAS
CSCD
北大核心
2020年第7期1666-1669,共4页
Applied Chemical Industry
基金
国家自然科学基金项目(51566014)
内蒙古留学人员科技活动项目择优入选项目。
关键词
[BMP][Tf2N]
黏度
密度
电导率
实验测定
模型关联
[BMP][Tf2N]
viscosity
density
electrical conductivity
experimental determination
model correlation
