火炸药学报2011，Vol.34Issue(3)：21-24,4.
高聚物黏结ε-HNIW混合炸药的制备及其感度
Preparation and Sensitivity of Mixture Explosive of Polymer Bonded ε-HNIW
摘要
Abstract
In order to improve the crystalline quality of raw hexanitrohexaazaisowurtzitane(CL-20) and meet the in-sensitivity requirement in formulations of mixed explosives, ε-CL-20 grains obtained by re-crystallization were coated by using an aqueous suspension technology. The results showed that raw CL-20 grains weren t coated directly because of multi-forms of crystal structure, inhomogeneous size distribution and high mechanical sensitivity (level approaching that of raw PETN). The pure e-CL-20 crystals having regular morphology and uniform particles were prepared from ethyl acetate and petroleum ether. With the use of back-extraction crystallization at room temperature, high quality ε-CL-20 crystals having lower impact sensitivity than that of raw CL-20 were obtained. Three typical binders were selected to coat e-CL-20 crystals. It was found that stearic acid (SA)was better than 3-polybuta-diene rubber(BR) and EVA when the mass percentage of binders was fixed at 5%. The characteristic drop height of impact sensitivity of ε-CL-20/SA moulding power was 24. 46 cm (2. 5 kg hammer), closing to that of 1 class RDX. The thermal characteristics of ε-CL-2O/SA(95/5) were studied using thermal analytical technique DSC-TG at 5'C/ min,showing that the initial and peak temperatures for the decomposition of ε-CL-20/SA were at 238. 8℃and 242. 9℃ , which were higher than those of LX-19, and the mixture of ε-CL-20 and SA had a good compatibility.关键词
物理化学/六硝基氮杂异伍兹烷/HNIW/CL-20/水悬浮/撞击感度/相容性Key words
physical chemistry/hexanitrohexaazaisowurtzitane/HNIW/CL-20/aqueous suspension (impact sensitivity/compatibility分类
军事科技引用本文复制引用
姜夏冰,焦清介,任慧,孙庭儒..高聚物黏结ε-HNIW混合炸药的制备及其感度[J].火炸药学报,2011,34(3):21-24,4.基金项目
爆炸科学与技术国家重点实验室自主基金(2010) （2010）
