离子液体[BMP][Tf_(2)N]基本物性的实验研究

Experimental Study on Basic Physical Properties of Ionic Liquid [BMP][Tf_(2)N]

针对离子液体[BMP][Tf_(2)N]的物性数据缺乏的问题,本文在101.325 KPa下对[BMP][Tf_(2)N]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、密度和电导率均受温度的影响较大,当压力一定时,[BMP][Tf_(2)N]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;通过选择分别用Arrhenius方程、自然对数方程和VFT方程关联[BMP][Tf_(2)N]的黏度、密度和电导率;结果表明: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5.399;4.41%和4.24%。

In view of the lack of physical property data of ionic liquid[BMP][Tf_(2)N],the viscosity of[BMP][Tf_(2)N]in the temperature range of 278.15~338.15 K and the density and conductivity of[BMP][Tf_(2)N]in the temperature range of 298.15~338.15 K were measured experimentally at 101.325 KPa.The results show that viscosity,density and conductivity are greatly affected by temperature.When the pressure is constant,the viscosity and density of[BMP][Tf_(2)N]decrease with the increase of temperature,while the conductivity increases with the increase of temperature.The viscosity,density and conductivity of[BMP][Tf_(2)N]were correlated by Arrhenius equation,natural logarithm equation and VFT equation;The results show that the maximum and average relative errors of the model and experimental values are 2.25%and 0.94%,5.74%and 5.39%,4.41%and 4.24%,respectively.