1,1,2,3,3,3-六氟-1-丙烯(R1216)热分解及灭火性能的理论与实验研究,International Journal of Quantum Chemistry

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1,1,2,3,3,3-六氟-1-丙烯(R1216)热分解及灭火性能的理论与实验研究
International Journal of Quantum Chemistry ( IF 2.3 ) Pub Date : 2023-08-16 , DOI: 10.1002/qua.27217
Shukai Li ₁ , Xiao Zhang ₂ , Xueqing Li ₁ , Rourou Yu ₁ , ZhenXiang Chang ₁ , Zhao Yang ₂ , Zhaoyang Tan ₁ , Xingyu Wang ₂ , Jianfeng Li ₃

Affiliation

由于哈龙对平流层臭氧层的严重破坏，对哈龙替代品的迫切需求推动了对潜在替代品的寻找。作为一种全氟烯烃物质，R1216（1,1,2,3,3,3-六氟-1-丙烯）具有与广泛使用的2-溴-3,3,3-三氟-1-烯相似的化学结构（ CF ₃ CBrCH ₂ , 2-BTP) 灭火剂。本研究通过理论计算和实验测量揭示了 R1216 的热分解和灭火性能。发现R1216具有较高的热稳定性，在600℃时不分解，不仅通过生成全氟烷烃、全氟烯烃和CF _{3达到化学灭火的目的}·自由基可以捕获火焰中的H·和OH·自由基，中断燃烧的链式反应，同时也可以通过断键吸热达到冷却的目的。物理和化学抑制的结合使 R1216 成为灭火的理想选择（对于甲烷和丙烷火焰分别为 6.78 和 7.40 vol%）。R1216不含Br·，全球变暖潜势为0，更加环保。这些发现表明，R1216 可能是一种潜在的哈龙替代品，具有广阔的应用前景，值得进一步评估。

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Theoretical and experimental studies on the thermal decomposition and fire-extinguishing performance of 1,1,2,3,3,3-hexafluoro-1-propene (R1216)

Due to the severe damage of Halon to the stratospheric ozone layer, the urgent need for substitutions for Halon has driven the search for potential alternatives. As a perfluoroolefin substance, R1216 (1,1,2,3,3,3-hexafluoro-1-propene) has a similar chemical structure to the widely used 2-bromo-3,3,3-trifluoro-1-ene (CF₃CBrCH₂, 2-BTP) extinguishants. This study revealed the thermal decomposition and fire-extinguishing performance of R1216 using theoretical calculations and experimental measurements. It was found that R1216 has high thermal stability and does not decompose at 600°C, and not only achieves the purpose of chemical extinguishment by generating perfluoroalkanes, perfluoroolefins and CF₃· radicals that can capture H· and OH· radicals in the flame to interrupt the chain reactions of combustion, but also achieve the goal of cooling by absorbing heat through bond breaking. A combination of physical and chemical inhibition makes R1216 ideal for fire suppression (6.78 and 7.40 vol% for methane and propane flames, respectively). R1216 does not contain Br· and has a global warming potential of 0, which is more environmentally friendly. These findings suggested that R1216 may be a potential Halon substitute with promising applications and deserved further evaluation.

更新日期：2023-08-16

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