The aim of this study was to investigate the effect of feed time of the oil phase on the average droplet size of Pickering emulsions produced in stirred tanks. Three types of impellers were tested: RT, up‐pumping PBT (PBTU), and down‐pumping PBT (PBTD). All the impellers were tested at two sizes, T/3 and T/2. All configurations were compared at constant tip speed, power per mass, and impeller Reynolds number. The droplet diameters were measured in Mastersizer® 3,000 (Malvern). The results showed that an increase in feed time causes a reduction in the average droplet size. At lower impeller speeds and higher feed times, the effect is more pronounced. It was found that some other geometric parameters also have an impact on the average droplet size.

中文翻译：

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分散相进料时间对搅拌釜中Pickering乳液液滴尺寸的影响

这项研究的目的是研究油相的进料时间对搅拌釜中Pickering乳液平均液滴尺寸的影响。测试了三种类型的叶轮：RT，上泵PBT（PBTU）和下泵PBT（PBTD）。所有叶轮均以T / 3和T / 2两种尺寸进行了测试。在恒定的叶尖速度，每质量功率和叶轮雷诺数下比较了所有配置。液滴直径在3,000（Malvern）中测量。结果表明，进料时间的增加导致平均液滴尺寸的减小。在较低的叶轮速度和较长的进给时间下，效果会更加明显。发现其他一些几何参数也对平均液滴尺寸有影响。