Process regulation for encapsulating pure polyamine via integrating microfluidic T‐junction and interfacial polymerization,Journal of Polymer Science

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Process regulation for encapsulating pure polyamine via integrating microfluidic T‐junction and interfacial polymerization
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2020-05-22 , DOI: 10.1002/pol.20200217
Xianwu Cao ₁ , Junjie Peng ₁ , Xinglei Fang ₂ , Zhitao Yang ₂ , Zicen Liao ₁ , Zhibin Yan ₃ , Chuanxia Jiang ₄ , Bin Liu ₂ , He Zhang _{1,

2}

Affiliation

The quality of microcapsules directly determines the performance of microcapsule‐based functional materials, such as self‐healing materials. How to achieve high‐quality microcapsules depends on not only the selected microencapsulation technique but also the process regulation. Herein, using tetraethylenepentamine (TEPA) as the core target to be encapsulated by a novel microencapsulation technique through integrating microfluidic T‐junction and interfacial polymerization, this investigation studied how the process parameters influence the microencapsulation process and the quality of the synthesized microcapsules regarding the size, morphology, shell structure, and composition. The studied parameters include the solvent type and surfactant concentration in the co‐flow solution, the fed volume of the co‐flow solution, the types of the solvent, catalyst, and shell‐forming monomer in the reaction solution for the shell‐growth stage, and the reaction temperature at the shell‐growth stage. The influence mechanisms were established based on the observations, and the optimized parameter combination for the process was achieved. Through the parametric study for the microencapsulation technique, this study also lays a solid foundation for the technique to fabricate microcapsules containing other functional substances with high quality.

中文翻译：

通过整合微流体T型结和界面聚合来封装纯多胺的工艺调节

微胶囊的质量直接决定了基于微胶囊的功能材料（例如自愈材料）的性能。如何获得高质量的微囊，不仅取决于所选的微囊化技术，还取决于工艺规程。在本文中，以四亚乙基五胺（TEPA）为核心目标，通过将微流体T型结和界面聚合相结合，通过新型微囊化技术进行囊化，本研究研究了工艺参数如何影响微囊化过程以及关于大小的合成微囊的质量，形态，壳结构和组成。研究的参数包括同流溶液中的溶剂类型和表面活性剂浓度，同流溶液的进料量，溶剂类型，壳生长阶段反应溶液中的催化剂和壳形成单体，以及壳生长阶段的反应温度。在此基础上，建立了影响机理，实现了工艺参数的优化组合。通过对微囊化技术的参数研究，该研究也为该技术制备高质量的含有其他功能性物质的微胶囊奠定了坚实的基础。

更新日期：2020-05-22

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