To further explore the influence law of nanoparticles on the surface tension of stable nano-Lithium Bromide solution (LiBr), the effects of temperature, solution concentration, dispersant and nanoparticles on the surface tension were investigated by Wilhelmy plate method under atmospheric pressure. The results demonstrate that the surface tension ascends with the augmentation of solution concentration and the amount of nanoparticles, decreases with increasing temperature and the amount of dispersant. The surface tension of the solution decreases obviously after adding dispersant. However, there is an optimal value for the amount of dispersant, and the surface tension of solution tends to be gentle increased after exceeding the optimal value of the dispersant, which is 2 wt%. Continue to add nanoparticles, the solution surface tension increases slightly, however, it is still less than pure LiBr. For instance, when the solution temperature is 30 °C and the solution concentration is 50 wt%, the surface tension of nano-LiBr added with 0.01 wt% nanoparticles decreases by 26.20%. The surface tension of nano-LiBr is impacted by coupling of the dispersant and nanoparticles at the same temperature and solution concentration. A surface tension calculation model of nano-LiBr was fitted using experimental data, and the maximum error was 2.78%.

为进一步探讨纳米粒子对稳定的纳米溴化锂溶液（LiBr）表面张力的影响规律，在大气压下，采用威廉姆平板法研究了温度，溶液浓度，分散剂和纳米粒子对表面张力的影响。结果表明，表面张力随着溶液浓度和纳米粒子数量的增加而升高，随温度和分散剂数量的增加而降低。加入分散剂后溶液的表面张力明显降低。然而，存在分散剂的量的最佳值，并且在超过分散剂的最佳值2wt％之后，溶液的表面张力趋于平缓增加。继续添加纳米粒子，溶液的表面张力略有增加，但是仍然小于纯LiBr。例如，当溶液温度为30℃且溶液浓度为50wt％时，添加有0.01wt％纳米颗粒的纳米LiBr的表面张力降低了26.20％。在相同的温度和溶液浓度下，分散剂和纳米颗粒的偶联会影响纳米LiBr的表面张力。利用实验数据拟合了纳米LiBr的表面张力计算模型，最大误差为2.78％。在相同的温度和溶液浓度下，分散剂和纳米颗粒的偶联会影响纳米LiBr的表面张力。利用实验数据拟合了纳米LiBr的表面张力计算模型，最大误差为2.78％。在相同的温度和溶液浓度下，分散剂和纳米颗粒的偶联会影响纳米LiBr的表面张力。利用实验数据拟合了纳米LiBr的表面张力计算模型，最大误差为2.78％。