杜明燃,陈宇航,胡赏赏,王尹军,王任松,曹稳,王天照,陈智凡

• 1:安徽理工大学化学工程学院
• 2:矿冶科技集团有限公司

摘要(Abstract)：

为了研究铝粉粒径对CO_2相变爆炸激发药剂性能的影响，通过热量法(TG)、引燃试验、耐温试验和反应热试验，研究其热分解特性、安全性、耐温性和反应热的变化。结果表明：加入40、80和120μm的铝粉后，激发药剂的热分解特性无明显变化，含40μm铝粉激发药剂表观活化能降低52.92 kJ/mol,含80μm和120μm铝粉激发药剂表观活化能分别增加55.21 kJ/mol和57.53 kJ/mol。加入不同粒径铝粉后，各试样均能在空气中被引燃，燃烧过程均伴随着白烟产生。其中，加入120μm铝粉的激发药剂与不含铝粉以及含40、80μm铝粉的激发药剂相比燃烧更剧烈。实验结果表明，含不同粒径铝粉的激发药剂均能被电引火药头激发，但试样未被完全引燃。这些激发药剂在封闭环境和一定压力下(大于或等于0.2 MPa)时，能够被可靠引燃且无明显爆炸现象，表明其安全性良好。在70°C保温48 h后，加入铝粉的激发药剂整体并未发生明显变化，温度指数T_s在70°C左右，表明其耐温性能良好。当不同粒径的铝粉质量百分数相同时，反应热提高均为12%左右，表明粒径对激发药剂反应热影响很小。

关键词(KeyWords)： CO_2相变爆炸;激发药剂;热分解特性;安全性;耐温性;反应热

Abstract:

Keywords:

基金项目(Foundation): 安徽省高校科学研究项目(KJ2021A0431);; 广西重点研发计划(桂科AB22035001);; 安徽省自然科学基金(1908085QA33);; 安徽理工大学引进人才科研启动基金项目(11881);; 广西重点研发计划(防科AB21014001)~~

作者(Author): 杜明燃,陈宇航,胡赏赏,王尹军,王任松,曹稳,王天照,陈智凡

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