A mesostructured NETmix reactor was adapted to develop a continuous process to produce microcapsules, focusing on the steps commonly used in batch formulation: the emulsion and cure. Microcapsules were formed through a polycondensation process by coating Miglyol, a skin-hydrating emollient, with melamine-formaldehyde, which is a resistant shell material with surface smoothness. Different recirculation times were tested for the cure step. Microcapsules show a spherical shape and smooth membrane. Efficiencies of encapsulation of 75%, core contents of 70%, and diameters around 20 μm, ideal range for textile impregnation, were obtained. Scanning electron microscopy shows the integrity of microcapsules on textiles after impregnation and their flexible behavior. The thermogravimetric analysis confirmed the thermal stability of microcapsules up to 210 °C. With the NETmix reactor, it is possible to reduce the cure time of traditional batch formulation in 80%, producing microcapsules with similar characteristics in a continuous process.

中文翻译：

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使用介观反应器连续生产三聚氰胺-甲醛微胶囊

介观结构的NETmix反应器适用于开发连续过程以生产微胶囊，重点是批料配制中常用的步骤：乳液和固化。微胶囊是通过缩聚过程形成的，方法是在三聚氰胺（一种皮肤补水润肤剂）上涂上三聚氰胺-甲醛，该三聚氰胺是一种具有表面光滑度的耐腐蚀外壳材料。测试了固化步骤的不同再循环时间。微胶囊显示球形和光滑的膜。获得了75％的封装效率，70％的芯含量以及20微米左右的直径，这是纺织品浸渍的理想范围。扫描电子显微镜显示了浸渍后纺织品上微囊的完整性及其柔韧性。热重分析证实了微胶囊在高达210°C的热稳定性。