链烯烃表面张力随温度的变化关系

Dependence of surface tension for alkene on tem- perature

检验筛选出适用于烯烃表面张力计算的Var der Waals方程参数。提出一个不含临界参数的表面张力新方程,通过对C_2～C_20链烯烃的计算,得出计算值与实验值之间总绝对平均误差为0.82%。对C_6以上链烯烃提出一个不含待定参数的表面张力预测方程,预测值与实验值之间,总绝对平均误差为0.79%。

Some Van der Waals equations proposed for calculating the surface tension of alkene are verified and modified,and a new single equation is developed to calculate the surface tension,which presents a total mean absolute error of 0. 79% between the calculated value and the experimental value.