纳米杂化壳层结构全氟己酮微胶囊的制备及表征

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中图分类号：TQ427.2 文献标识码：A

Abstract： To develop highly efficient and stable fire-extinguishing agent materials， this study employed suspension polymerization of trifluoroethyl methacrylate and methyl methacrylate to construct the wall. We introduced silica nanoparticles to form a hybrid shell，and encapsulated perfluorohexanone as the core material to prepare fire-extinguishing microcapsules and the physical properties， extinguishing performance， and storage stability of resulting microcapsules were systematically characterized. Results showed that incorporating trifluoroethyl methacrylate and silica nanoparticles into the wall material yielded uniformly spherical microcapsules，and the hybrid shell markedly enhanced thermal stability while raising the encapsulation efficiency to 64.8% The microcapsules extinguished flames within 18s ，demonstrating rapid suppression efficacy. Moreover，the hybrid shell efectively inhibited perfluorohexanone leakage，achieving core material retention of 86.8% over l8O days，which is highly favorable for long-term storage and practical application of the fire-suppression microcapsules.

Keywords： perfluorohexanone； microcapsule； trifluoroethyl methacrylate； silica; hybrid shell

随着新能源汽车和储能电站的爆发式增长，火灾事故的发生更加频繁，新能源锂电池的安全性问题日趋严峻，对环保高效灭火材料的要求也更加严苛。（剩余9020字）