In this work, we developed a continuous preparation strategy for the production of high-solidscontent waterborne polyurethane (WPU) emulsions via high-gravity-assisted emulsification in a rotating packed bed (RPB) reactor. By adjusting the experimental parameters and formula, WPU emulsions with a high solids content of 55% and a low viscosity were prepared. Preliminary applications of the high-solids-content WPU as a thermally insulating material were demonstrated. RPB emulsification is an economical and environmentally friendly production strategy because of the low energy consumption, short emulsification time, and effective devolatilization. This study demonstrated an effective method for preparation of high-solids-content WPU, moving toward commercialization and industrialization.

在这项工作中，我们开发了一种连续制备策略，用于通过在旋转填充床（RPB）反应器中进行高重力辅助乳化来生产高固含量的水性聚氨酯（WPU）乳液。通过调整实验参数和配方，制备了固含量为55％，粘度较低的WPU乳液。演示了高固含量WPU作为隔热材料的初步应用。RPB乳化技术具有能耗低，乳化时间短，脱挥发分高等优点，是一种经济，环保的生产策略。这项研究证明了一种制备高固含量WPU的有效方法，正朝着商业化和工业化方向发展。