研究目的
To prepare a novel type of photochromic spirooxazine microcapsule by interfacial polymerization between epoxy resin and polyamine compound and study the effects of different process parameters on the formation, microstructure, and performance of microcapsules.
研究成果
Photochromic spirooxazine microcapsules were successfully prepared using interfacial polymerization with epoxy resin E-51 and ethylenediamine. The microcapsules exhibited uniform particle size, improved thermal stability, and excellent photochromic performance under UV irradiation. The addition of silica nanoparticles improved the dispersibility and mechanical properties of the microcapsules. These findings suggest potential applications in intelligent textiles, fibers, and solar energy storage.
研究不足
The study did not explore the long-term stability of the photochromic microcapsules under various environmental conditions. The effect of different types of epoxy resins on the microencapsulation process was also not investigated.
1：Experimental Design and Method Selection:
The study involved the preparation of photochromic microcapsules through interfacial polymerization using epoxy resin E-51 and ethylenediamine.
2：Sample Selection and Data Sources:
Spirooxazine was used as the photochromic material, dissolved in dioctyl phthalate (DOP).
3：List of Experimental Equipment and Materials:
Field emission scanning electron microscope (FE-SEM, S-4800), laser scattering particle size distribution analyzer (LA-300), thermogravimetric analyzer (TGA, Netzsch, STA449F3).
4：3). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The oil phase (E-51 epoxy resin, spirooxazine, and DOP) was emulsified with the aqueous phase (SMA and distilled water) to form an oil-in-water emulsion, followed by the addition of ethylenediamine to initiate the interfacial polymerization.
5：Data Analysis Methods:
The morphology, particle size, thermal stability, and photochromic performance of the microcapsules were analyzed using FE-SEM, laser particle size analyzer, TGA, and visual observation under UV light.
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