硼金属化RDX基炸药的热行为  

Thermal Behavior of Boron Metallized RDX-based Explosives

作　　者：任晓宁[1,2] 邵颖惠[1] 刘子如[1,2] 赵凤起[1,2] 张皋[1] 封雪松[1] 衡淑云[1,2] 

机构地区：[1]西安近代化学研究所,陕西西安710065 [2]西安近代化学研究所燃烧与爆炸技术重点实验室,陕西西安710065

出　　处：《火炸药学报》2012年第3期47-51,共5页Chinese Journal of Explosives & Propellants

摘　　要：采用热重(TG-DTG)及高压差示扫描量热(PDSC)技术,考察了含硼金属化RDX基炸药的热行为。研究了不同金属组分对金属化炸药热分解性能的影响,计算获得热分解的动力学参数表观活化能及指前因子。结果表明,RDX分解及其分解产物能"活化"硼粉,使之在高温下更易被氧化或氮化,而RDX对Al粉或Mg粉氧化反应的影响相对较小;B、Al和Mg金属粉的加入导致RDX的热分解反应表观活化能和速率降低,DSC(PDSC)和DTG峰温滞后,DSC的量热值下降。The thermal behaviors of various metaliized RDX-based explosives with boron powder have been investi gated by a thermogravimetric analyzer （TG-DTG） and a high pressure differential scanning calorimeter （PDSC）tech- nology. The effects of the ingredients on thermal decompositions of the metallized explosives have been studied. The kinetic parameters,apparent activation energies and pre exponential factors were calculated. The results showed that the RDX decomposition and its products could ＂activate＂ boron powder, make its oxidation or nitrogenation more easy at high temperature, whereas there is less effect on aluminum powder and magnesium powder; the addition of boron powder, aluminum powder and magnesium powder into RDX make its apparent activation energies and rate constants decrease, the peak temperatures of DSC（PDSC） and DTG lag, and the calorimetric data decline.

关 键 词：物理化学 金属化炸药 热分析 表观活化能 反应速率常数 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O642.1[理学—物理化学]