In this study, the synthesis of polycaprolactone (PCL) microspheres containing cerium (III) nitrate (Ce(NO₃)₃) as a self-healing agent was performed by water-in-oil-in-water (W₁/O/W₂) double emulsion evaporation (DEE) method. The parameters including stirring speeds (100, 200, 400, 600, 800, and 1,000 rpm) and mixing temperatures (room temperature, 50 °C, 60 °C, and 70 °C) were investigated during the DEE formation. Based on the results, an increase in stirring speeds resulted in a decrease in an average particle size of the PCL microspheres containing Ce(NO₃)₃; yet it did not affect the average particle size of the PCL microspheres without Ce(NO₃)₃ inside. The suitable temperature for synthesizing PCL microspheres containing Ce(NO₃)₃ as well as PCL microspheres without Ce(NO₃)₃ inside should not exceed 50 °C during DEE formation because the PCL compound started to melt at temperature above such a mixing temperature. Based on the results, the conditions of DEE formation at the stirring speed of 1,000 rpm and mixing temperature of 50 °C yielded the PCL microspheres containing Ce(NO₃)₃ with an average size of 5.48 μm.

在这项研究中，使用水包油包水型（W ₁ / O / ）合成了含有硝酸铈（III）（Ce（NO ₃）₃）作为自愈剂的聚己内酯（PCL）微球。W ₂）双重乳液蒸发（DEE）方法。在DEE形成过程中，研究了包括搅拌速度（100、200、400、600、800和1,000 rpm）和混合温度（室温，50°C，60°C和70°C）的参数。根据该结果，搅拌速度的增加导致含有Ce（NO ₃）₃的PCL微球的平均粒径减小；反之，则减小。但是它没有影响没有Ce（NO ₃）的PCL微球的平均粒径₃里面。合成含Ce（NO ₃）_3的PCL微球以及内部不含Ce（NO ₃）_3的PCL微球的合适温度在DEE形成过程中不应超过50°C，因为PCL化合物在高于此混合温度的温度下开始熔化。根据该结果，在1000rpm的搅拌速度和50℃的混合温度下形成DEE的条件产生了含有Ce（NO ₃）₃的PCL微球，其平均尺寸为5.48μm。