Abstract The effects of organic phase change material (PCM) and surfactant on HCFC141b hydrate nucleation are investigated under quiescent conditions. The surfactants Tween80 and Span80 are chosen as emulsifiers, and the mixture of PCM n-decanoic acid (CA) and dodecyl alcohol (DE) is used as promoter. The emulsion of HCFC141b + CA–DE (the mass ratio of CA to DE is 1:1) + Tween80 or Span80 + H2O is prepared, where CA–DE is dispersed in water and HCFC141b is dissolved into CA–DE. The hydrophobic CA–DE droplets create an increased local HCFC141b concentration, and organize the surrounding water into a clathrate-like structure. Additives of 1 wt% CA–DE and 1 wt% Tween80 have the best promotion effect on the nucleation of HCFC141b hydrate. The nucleation of HCFC141b hydrate has a stochastic nature and the additives (CA–DE, Tween80 and Span80) reduce the scatter of the induction time of HCFC141b hydrate formation.

中文翻译：

---

静态条件下有机相变材料和表面活性剂对HCFC141b水合物成核的影响

摘要 在静止条件下研究了有机相变材料(PCM)和表面活性剂对HCFC141b水合物成核的影响。选择表面活性剂Tween80和Span80作为乳化剂，PCM正癸酸（CA）和十二烷醇（DE）的混合物作为促进剂。制备HCFC141b+CA-DE（CA与DE的质量比为1：1）+Tween80或Span80+H2O的乳液，其中CA-DE分散在水中，HCFC141b溶解在CA-DE中。疏水性 CA-DE 液滴会增加局部 HCFC141b 浓度，并将周围的水组织成类似包合物的结构。1 wt% CA-DE 和 1 wt% Tween80 添加剂对 HCFC141b 水合物的成核作用最好。HCFC141b 水合物的成核具有随机性和添加剂（CA-DE，