The surface tension of the mixtures of R1234ze(E) with two POE lubricant oils (RL68H and SL32S) was measured at temperatures from 278 K to 338 K. The experimental system which is established based on differential capillary rise method was used for the present measurement. The surface tension enhancement rate of R1234ze(E)/RL68H and R1234ze(E)/SL32S mixtures compared to pure R1234ze(E) was discussed. In addition, the surface tension data were correlated as a function of temperature and lubricant oil mass fraction. The average absolute deviation for R1234ze(E)/RL68H and R1234ze(E)/SL32S mixtures between experimental data and calculated values was 0.08 mN·m⁻¹ and 0.06 mN·m⁻¹, respectively.

在278 K~338 K温度下测量了R1234ze(E)与两种POE润滑油(RL68H和SL32S)的混合物的表面张力。本测量采用基于微分毛细管上升法建立的实验系统。 。讨论了 R1234ze(E)/RL68H 和 R1234ze(E)/SL32S 混合物与纯 R1234ze(E) 相比的表面张力增强率。此外，表面张力数据与温度和润滑油质量分数的函数相关。 R1234ze(E)/RL68H和R1234ze(E)/SL32S混合物的实验数据与计算值之间的平均绝对偏差分别为0.08mN·m ^-1和0.06mN·m ^-1。