The primary physicochemical properties of density (ρ), viscosity (v), and surface tension (γ) of the 1, 3-diaminopropane (DAP) + 1, 3-propanediol (PDO) binary system were measured under the atmospheric pressure of Hohhot in the temperature range of 293.15 K - 318.15 K with the increment of 5 K. Meanwhile, the excess properties of exceed molar volumes (V_m^E), partial molar volumes (${\stackrel{\text{\_}}{V}}_1$ and ${\stackrel{\text{\_}}{V}}_2$) and apparent molar volumes (V_φ,1 and V_φ,2) were calculated, among them, the values of (${\stackrel{\text{\_}}{V}}_1$ and ${\stackrel{\text{\_}}{V}}_2$) and (V_φ,1 and V_φ,2) were all positive. In addition, the minimum V_m^E was found at x₁ ≈ 0.55. The intermolecular hydrogen bonding between the –OH in PDO and the -N(H₂) in DAP in the form of -(H₂)N···H-OCH₂– was found by the FTIR, UV–Vis, fluorescence and ¹H NMR. And the influence of intermolecular hydrogen bond on the change trend of density and viscosity was discussed.

在呼和浩特大气压下测量了1，3-二氨基丙烷（DAP）+ 1，3-丙二醇（PDO）二元体系的密度（ρ），粘度（v）和表面张力（γ）的主要理化性质。在293.15 K-318.15 K的温度范围内以5 K递增。同时，超过摩尔体积（V _m ^E），部分摩尔体积（${\stackrel{\text{\_}}{V}}_{\mathrm{1个}}$ 和 ${\stackrel{\text{\_}}{V}}_2$）和表观摩尔体积（V _{φ， 1}和V _{φ， 2}）进行了计算，其中，值（${\stackrel{\text{\_}}{V}}_{\mathrm{1个}}$ 和 ${\stackrel{\text{\_}}{V}}_2$）和（V _{φ， 1}和V _{φ， 2}）均为阳性。此外，最小V_米^Ë在发现X ₁  ≈0.55。通过FTIR，UV-Vis，荧光和电离分析发现PDO中的-OH和DAP中的-N（H ₂）之间以-（H ₂）N···H-OCH _2-的形式存在分子间氢键。¹ H NMR。讨论了分子间氢键对密度和粘度变化趋势的影响。