中文摘要：

McAllister三体模型被普遍认为是针对液体混合物黏度的最佳关联式。本文在对三类（醇类／醇类、烷烃／烷烃、烷烃／醇类）二元混合物黏度数据进行文献收集的基础上，发现McAllister模型中的相互作用参数（v12和／221）随混合物的等效分子量和温度呈现出规律性的变化。因此，本文建立了一种改进的McAllister三体模型，并对乙醇与醇类（包括丙醇、丁醇、戊醇、己醇、庚醇、辛醇、壬醇、癸醇），正丁基环己烷与烷烃（包括庚烷、辛烷、壬烷、癸烷、十二烷、十四烷），异辛烷与醇类（包括丙醇、戊醇、己醇、庚醇）的黏度进行了计算，计算结果表明，计算值与实验值之间的总体平均绝对偏差为1．00％，最大偏差为9．75％。

英文摘要：

McAllister three-body model is generally regarded as the best correlation for the viscosities of liquid mixtures. In this work, the viscosity data of three types of binary mixtures, such as alcohols/alcohols, alkanes/alkanes, alkanes/alcohols, were collected extensively from the literature. Investigation shows that the interaction parameters （v12 andv21） in the model exhibit regular trends along with equivalent molecular weights of binary mixtures and temperatures. Therefore, an improved McAllister three-body model was proposed. The new model was used to calculate the viscosities of different binary mixtures, including ethanol with alcohols （such as 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, 1-decanol）, n-butylcyclohexane with alkanes （such as 1-heptane, 1-octane, 1-nonane, 1-decane, 1-dodecane, 1-tetradecane）, isooctane with alcohols （such as 1-propanol, 1-pentanol, 1-hexanol, 1-heptanol）. The results show that the overall average absolute deviation is 1.00% between calculated data and experimental values, and the maximum deviation is 9.75%.