摘要
为了表征含能粘合剂的能量特性,开展了含能粘合剂的燃烧热、生成焓与爆热特征值的测试研究并评估了将其作为含能粘合剂能量特性量化指标的合理性,探索了利用硝化棉(NC)助燃来测试含能粘合剂爆热特征值的方法。结果表明:当含能粘合剂/NC质量比达到1∶5时,绝大多数含能粘合剂可以充分燃烧;以硝化棉为助燃物可准确测取含能粘合剂的爆热特征值,所测聚硝酸酯基缩水甘油醚(PGN)与聚乙烯醇硝酸酯(PVN)的爆热特征值分别为3164、4713 kJ·kg^(-1),与文献值的相对误差均小于5%;燃烧热不能准确反映含能粘合剂的能量优势,采用爆热特征值可较好地表征含能粘合剂的能量特性,避免了生成焓正负之分导致估值体系自我矛盾的缺点;在隔绝氧气的条件下,含能粘合剂能量贡献值从小到大依次为GETPE<FATPE<GAP<PBAMO<NC(12%)<PGN <PVN。
Tests and studies were performed to characterize the energy properties of the target energetic binders,such as the combustion heat,enthalpies of formation and explosion heat characteristic values.The rationality of the energy properties as quantitative indexes for energy characterization of energetic binders were evaluated,and the method of using nitrocotton(NC) as comburent to test the explosion heat characteristic values of energetic binders was explored.The results show that when the mass ratio of energetic binder/NC reaches 1∶5,most energetic binders can be fully burned.The explosion heat characteristic value of energetic binder can be accurately measured by using nitrocellulose as the comburent.The explosion heat characteristic values of PGN and PVN measured by this method are 3164 kJ ·kg^(-1) and 4713 kJ· kg^(-1),respectively,and the relative errors with the literature values are less than 5%.The combustion heat can not accurately reflect the energy advantage of energetic binders.The energy characteristics of energetic binders can be well characterized by the explosion heat characteristic values,avoiding the self-contradictory of evaluation system caused by the difference between positive and negative enthalpy of formation.Under the condition of isolating oxygen,the energy contribution of energetic binders increase in the order of GETPE<FATPE<GAP<PBAMO<NC(12%)<PGN<PVN.
作者
卢先明
段秉蕙
莫洪昌
徐明辉
刘宁
LU Xianming;DUAN Binghui;MO Hongchang;XU Minghui;LIU Ning(Xi'an Modern Chemistry Research Institute,Xi'an 710065,China;State Key Laboratory of Fluorine&Nitrogen Chemicals,Xi'an 710065,China)
出处
《固体火箭技术》
CAS
CSCD
北大核心
2024年第3期364-369,共6页
Journal of Solid Rocket Technology
关键词
含能粘合剂
硝化棉
助燃法
爆热特征值
燃烧热
生成焓
energetic binders
nitrocotton
combustion-supporting method
characteristic explosion heat
heat of combustion
en-thalpies of formation
