LLM-105 nanoparticles prepared via green ball milling and their thermodynamics and kinetics investigation

作者: Bin Liu , Chongwei An , Xiaoheng Geng , Liyuan Yang , Shuai Xu

DOI: 10.1007/S10973-019-08079-X

关键词: Materials scienceThermal decompositionDynamic light scatteringBall millActivation energyDifferential scanning calorimetryNanoparticleThermodynamicsScanning electron microscopeParticle size

摘要: 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) has drawn extensive attention because of its heat resistance and insensitivity properties. In this study, the LLM-105 nanoparticles were successfully prepared via ball milling method. The milled particles characterized by scanning electron microscopy, X-ray diffraction, dynamic light scattering, differential calorimetry thermal sensitivity tests. Moreover, thermodynamics kinetics parameters samples calculated two equations. Results show that process can significantly reduce particle size have narrow distribution ranging from 510 to 650 nm. decomposition peak temperatures are decreased over 14 °C than those raw at same heating rate. apparent activation energy (Ea) is as 221.2 kJ mol−1 221.4 kJ mol−1 Kissinger Starink equation, respectively, which lower a third (339.9 kJ mol−1, 339.7 kJ mol−1). (ΔS≠, ΔH≠, ΔG≠) also in various degrees.

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