Thermophysical properties of HFE7100 and HFE7500

doi:10.11949/j.issn.0438-1157.20151505

Abstract

Abstract:

Due to their favorable thermophysical and environmental properties HFE7100 and HFE7500 are extensively applied as heat transfer fluids in semiconductor industry and cleaning solvents in electronic components. Thermal conductivity of HFE7100 and HFE7500 under atmospheric pressure was measured by a transient hot-wire technique, as well as their liquid viscosity and surface tension by the surface light scattering (SLS) method. Thermal conductivity and liquid viscosity were correlated with temperature as polynomial functions. The average absolute deviations between correlations and experimental data of thermal conductivity and liquid viscosity are 0.37% and 1.19% for HFE7100, and 0.08% and 1.10% for HFE7500, respectively. A modified correlation based on van der Waals was used for that of surface tension as a function of temperature, by which the average absolute deviations of surface tension are 0.03 and 0.02 mN·m^-1 for HFE7100 and HFE7500, respectively. In this study, the experimental and correlation data of conductivity, viscosity and surface tension can be supportive for engineering application.

Key words: HFE7100, HFE7500, thermal conductivity, viscosity, surface tension

摘要：

为了获得氢氟醚HFE7100、HFE7500的热物理性质参数,补充现有数据不足,为其作为电子元器件的冷却介质、工业清洗剂等工程应用提供技术支持,利用瞬态热线法测量了常压下HFE7100和HFE7500的热导率,并用表面光散射法测量了HFE7100和HFE7500的液相黏度和表面张力。HFE7100和HFE7500的热导率和液相黏度均关联成温度的多项式函数,HFE7100热导率和黏度的实验值和关联式的平均绝对偏差分别为0.37%和1.19%,HFE7500热导率和黏度的实验值和关联式的平均绝对偏差分别0.08%和1.10%。利用改进的van der Waals关联表面张力和温度的关系,HFE7100和HFE7500的表面张力的实验值和关联式的平均绝对偏差分别为0.03 mN·m^-1和0.02 mN·m^-1。获得的HFE7100和HFE7500的热导率、黏度和表面张力实验数据及方程,可为其工程应用提出数据支持。

关键词: HFE7100, HFE7500, 热导率, 黏度, 表面张力

CLC Number:

TB61⁺2

BI Shengshan, CUI Junwei, MA Lunjian, ZHAO Guanjia, WU Jiangtao. Thermophysical properties of HFE7100 and HFE7500[J]. CIESC Journal, 2016, 67(5): 1680-1686.

毕胜山, 崔军卫, 马纶建, 赵贯甲, 吴江涛. HFE7100和HFE7500的热物理性质[J]. 化工学报, 2016, 67(5): 1680-1686.

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