摘要
制备了不同Ni、Cu比例的纳米NiCu复合粉,用差示热分析(DTA)法研究了纳米NiCu复合粉对AP及AP/HTPB推进剂热分解的催化作用。结果表明,纳米NiCu复合粉可显著降低AP以及AP/HTPB推进剂的热分解峰温,使总表观分解热明显增大,表现出显著的催化效果。Ni与Cu的比例对纳米NiCu复合粉的催化性能有较大的影响,随着Cu含量的增加,催化性能增强,以Ni60Cu40的催化效果最好。随着纳米NiCu复合粉加入量的增加,其催化作用增强。探讨了纳米NiCu复合粉催化AP热分解的作用机理。
Nano-NiCu composite powder with different proportion of Ni to Cu was prepared, and its catalysis on pyrolysis of AP and AP/HTPB propellant were investigated by differential thermal analysis （DTA） method. The results show that nano-NiCu composite powder can greatly decrease the pyrolytic peak temperature of AP and AP/HTPB propellant, and increase the total apparent decomposition heat obviously. The proportion of Ni to Cu has great effect on the catalysis of nano-NiCu composite powder, and the catalysis effect enhances with the increase of Cu content. Ni60Cu40 possesses the best catalytic property. With the increase of nano- NiCu composite powder content, its catalysis effect also enhance. The catalytic mechanism of nano-NiCu composite powder on the pyrolysis of AP was discussed.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2007年第1期52-56,共5页
Journal of Solid Rocket Technology
基金
国家自然科学基金项目(No.50306008)
关键词
纳米NiCu复合粉
高氯酸铵
热分解
催化性能
nano-NiCu composite powder
ammonium perchlorate
pyrolysis
catalytic performance
