摘要
为研究四聚乙醛和硝酸铜氨烟火药的燃烧光谱,利用热重-差示扫描量热法和光电探测技术表征了该体系的谱学特性。基于热重-差示扫描量热分析,得到了四聚乙醛与硝酸铜氨体系的热分解历程,提出了可能的燃烧发光机理,并与燃烧光谱的测试结果进行了对比分析。结果表明:四聚乙醛燃烧时发出黄色火焰,在591.35 nm处出现峰值,这是由于碳燃烧产生。当硝酸铜氨与四聚乙醛均匀混合后,硝酸铜氨的热分解历程改变,其放热峰从272.88℃提前到254.78℃。四聚乙醛与硝酸铜氨体系燃烧时呈黄绿色火焰,分别在545.8,589.33 nm处产生谱峰,这与碳的燃烧和铜自由基的形成有关,燃烧火焰的理论预测与光谱测试结果一致。
In order to study the burning spectrum of metaldehyde and copper nitrate-ammoniamixture,spectroscopic properties of the mixture were tested by thermogravimetry-differential scanning calorimetry（ TG-DDSC）TG/DSC method）and photoelectric detection technology. Based on thermal analysis of the mixture,its thermal decomposition process and possible combustion lumi-nous mechanism were studied,and compared with those tested by the burning spectrum. Results show that the burning flame of metaldehyde is yellow and there is a peak at 591. 35 nm which is formed by burning of carbon. When mixed the metaldehyde, thermal decomposition process of copper nitrate-ammonia is changed,with the exothermic peak decreasing from 272. 88 ℃ to 254. 78 ℃. The green and yellow flame gives off when metaldehyde and copper nitrate-ammonia mixture burns and the spectrum peaks appear separatly at 545. 8 nm and 589. 33 nm,which is related to carbon burning and forming of copper free radical. The results of theoretical prediction are in agreement with the experimental.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2014年第6期748-751,共4页
Chinese Journal of Energetic Materials
基金
辽宁省重点实验室开放基金(4771004kfs04)
关键词
物理化学
烟火药
四聚乙醛
硝酸铜氨
热重-差示扫描量热分析
燃烧
光谱
physical chemistry
pyrotechnics composite
metaldehyde
copper nitrate-ammonia
thermogravimetry-differential scanning calorimetry（TG-DSC）
combustion
spectrum
