直链烷烃与JP-10混配二元体系的体积性质

Volumetric Properties of Binary Systems of Straight-chain Alkanes+JP-10

测定了正壬烷、十一烷、十二烷、十三烷和十四烷5种正构烷烃与挂式四氢双环戊二烯(C10H16,JP-10)组成的二元体系在293.15,298.15,303.15和313.15 K下的黏度和密度.利用所得实验数据分别计算了各个二元体系的体积性质,从分子结构和分子间相互作用角度讨论了二元体系体积性质的变化规律.根据Eyring液体黏性流动理论,关联了二元体系的黏滞性活化参数.结果表明,焓驱动居于主导地位.

To improve volumetric properties of straight chain alkanes which is the main component in petroleum hydrocarbon fuels, exo-tetrahydrodicyclopentadiene（JP-10） was grouped into five binary systems with n-nonane, n-undecane,n-dodecane, n-tridecane and n-tetradecane, respectively. The densities and viscosities were determined over the whole composition range for the binary mixtures at different temperatures（293.15, 298.15, 303.15 and 313.15 K） by Anton Paar DMA5000 M and Anton Paar AMVn. The volumetric properties of mixtures were calculated according to the obtained data. The molecular structure and intermolecular interactions were qualitatively discussed. Thermodynamic functions of activation of the binary systems were calculated according to the absolute rate theory approach of Eyring, which indicate ΔH≠ plays a major role. The results may provide important information for the blending of hydrocarbon fuels.