摘要
为了研究纳米氧化铁对金属燃料的催化作用,以氯化铁为原料,以特种表面活性剂为分散剂,通过正交试验制备出分散性好、晶粒度为25.7nm、纯度为99.5%的球形α-Fe2O3粒子,采用热重分析实验研究了纳米氧化铁催化剂对AP热分解峰温的影响。结果表明,纳米氧化铁可使AP的低温和高温分解峰的峰温分别提前7.37℃和58.12℃;微米级氧化铁仅可使AP低温和高温分解峰的峰温分别提前4.21℃和14.31℃。金属燃料的燃速测定结果表明,含有纳米氧化铁催化剂燃料的燃速比微米级的提高30%以上。
In order to study the catalysis of iron oxide nanoparticles on the metallic fuel, the nanoparticles of α- Fe2O3 were prepared using iron chloride as raw material and special surfactant as dispersant agent by an orthonormal test. Its grain size was 25.7nm, purity 99.5% and particles were spherical and well dispersed. The catalysis of iron oxide nanopartieles on the reak temperature of ammonium perchlorate （AP） decomposition was investigated by TGA. The results showed that iron oxide nanoparticles can decrease the low and high decomposition peak temperatures of AP by 7.37℃ and 58.12℃ ,while micrometer iron oxide can only decrease the two thermal decomposition peak temperature of AP by 4. 21 ℃ and 14. 31℃. The results of burning rate test showed that iron oxide nanoparticles can improve the burning rate of metallic fuel 30 percent more than micrometer iron oxide.
出处
《火炸药学报》
EI
CAS
CSCD
2008年第6期69-72,共4页
Chinese Journal of Explosives & Propellants
关键词
材料科学
纳米氧化铁
金属燃料
燃速
催化作用
material science
iron oxide nanoparticle
metallic fuel
burning rate
catlysis
