【摘要】 从分子缔合的粘滞球模型出发，导出了同时含有自缔合和交叉缔合时亥氏函数的贡献，交叉缔合参数可由自缔合参数计算。常压和高压下二元缔合流体混合物汽液平衡的关联结果令人满意。更多还原

【Abstract】 The Helmholtz function of fluid mixtures containing both selfassociation and crossassociation between molecules include two terms,the contribution due to the physical interaction between molecules and that due to association between molecules.The former is calculated by the Helmholtz function model of squarewellchain fluid mixtures with one adjustable binary interaction parameter presented by authors in previous works.The latter is derived from the shieldsticky model of chemical association.The crossassociation parameters (association volume fraction and association energy) are calculated from the corresponding pure selfassociation parameters.Good agreements with experimental data have been obtained for calculation of binary vaporliquid equilibria of associated fluid mixtures containing water,alcohol’s,carboxylic acids and amines from normal pressure to high pressure.更多还原