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Abstract：
Mineral oils and synthetic and natural esters are the predominant insulating liquids in electrical equipment. Structure-activity relationship models to predict the key properties of pure insulating liquids, including pulse breakdown strengths, AC breakdown voltages, dielectric constants, flash points, and kinematic viscosities, have been proposed for the first time. Dependence of the specific properties on the molecular structures has been illustrated quantitatively in terms of surface area, statistical total variance, and average deviation of positive and negative electrostatic potentials, as augmented by molecular weight, volume, and ovality. Moreover, the individual contribution of the functional groups to viscosity has been revealed by an additive approach. The predicted properties are in good agreement with the experimental data. The present theoretical work provides new insights on the development of novel dielectric fluids.
摘要：
矿物油和合成和天然酯是电气设备中的主要绝缘液体。用于预测纯绝缘液体关键特性的结构-活性关系模型，包括脉冲击穿强度，交流击穿电压,介电常数,闪点,和运动粘度，这是第一次提出。特定性质对分子结构的依赖性已在表面积方面定量说明，统计总方差，以及正负静电电位的平均偏差，随着分子量的增加，volume,和椭圆。此外，各个官能团对粘度的贡献已通过加性方法揭示。预测的性质与实验数据吻合良好。本理论工作为新型介电流体的开发提供了新的见解。
