Trifluoroethene R1123 is expected to be a low GWP refrigerant; however, it needs to be mixed with other stable refrigerants to avoid a disproportional reaction. This paper delivers one of the essential thermophysical properties surface tension for a low-GWP refrigerant mixture R1123/R32/1234yf measured by the differential capillary rise method in the temperature range from 225 to 345 K. The propagated uncertainty in surface tension with a 95% confidence level was typically 0.15 mNm⁻¹. From the measured surface tension and calculated saturation densities, the parachor of R32 and R1123 were determined to be 91.6 and 123.3, respectively. The parachor of R1234yf was slightly dependent on a temperature, T, as 181.44−0.0319T. The variation in the surface tension of binary pairs against the composition was predicted by the correlation proposed by Di Nicola et al. (2018) and the parachor method with sufficient accuracy. Furthermore, the surface tension of ternary mixture R1123/R32/1234yf at compositions of 60/22/18 mass% and 22/70/08 mass% was also predicted by the parachor method with sufficient accuracy. Nevertheless, a slight deviation was confirmed at temperatures below 260 K. The prediction would be improved with subsequent studies in phase equilibrium. (191 words)

三氟乙烯 R1123 预计是一种低 GWP 制冷剂；然而，它需要与其他稳定的制冷剂混合以避免不成比例的反应。本文提供了低 GWP 制冷剂混合物 R1123/R32/1234yf 在 225 至 345 K 温度范围内通过微分毛细管上升法测量的基本热物理特性之一。表面张力的传播不确定度为 95%置信水平通常为0.15 mNm ^-1。根据测量的表面张力和计算的饱和密度，R32 和 R1123 的伞形分别确定为 91.6 和 123.3。R1234yf 的降落伞略微依赖于温度T，为 181.44−0.0319 T. Di Nicola 等人提出的相关性预测了二元对表面张力相对于成分的变化。(2018) 和具有足够精度的 parachor 方法。此外，三元混合物 R1123/R32/1234yf 在 60/22/18 质量％和 22/70/08 质量％的组成下的表面张力也通过降落伞法以足够的精度预测。然而，在低于 260 K 的温度下确认了轻微的偏差。随着随后的相平衡研究，预测将得到改进。( 191 字)