The current paper aimed to study the properties and interactions of liquid mixtures containing butyl lactate and 1-alkanols with carbon chains ranging from 4 to 7 (1-butanol, 1-pentanol, 1-hexanol, and 1-heptanol). Excess molar volumes and viscosity deviations were analyzed by experimental measurement of density and viscosity at varying temperatures and 0.1 MPa pressure. Solutions with butyl lactate and 1-butanol or 1-pentanol showed negative excess molar volumes, while mixtures with 1-hexanol and 1-heptanol had positive values. All liquid mixtures exhibited negative viscosity deviations that declined as 1-alkanol carbon chain lengthened. The PC-SAFT model successfully simulated pure fluid and mixture densities, with maximum 1-pentanol mixture deviations of 0.98 %. Overall, PC-SAFT accurately correlated both pure and solution densities.

本文旨在研究含有乳酸丁酯和碳链数为 4 至 7 的 1-烷醇（1-丁醇、1-戊醇、1-己醇和 1-庚醇）的液体混合物的性质和相互作用。通过在不同温度和 0.1 MPa 压力下实验测量密度和粘度来分析过量摩尔体积和粘度偏差。乳酸丁酯和 1-丁醇或 1-戊醇的溶液显示出负过量摩尔体积，而含有 1-己醇和 1-庚醇的混合物则显示出正值。所有液体混合物均表现出负粘度偏差，该偏差随着 1-烷醇碳链的延长而下降。PC-SAFT 模型成功模拟了纯流体和混合物密度，1-戊醇混合物的最大偏差为 0.98%。总体而言，PC-SAFT 准确地关联了纯密度和溶液密度。