火炸药学报2017，Vol.40Issue(2)：88-93,6.DOI:10.14077/j.issn.1007-7812.2017.02.017
B/Fe2O3/NC复合物的制备及其对HTPB/AP推进剂性能的影响
Preparation of B/Fe2O3/NC Composite and Its Effect on Properties of HTPB/AP Propellant
摘要
Abstract
To improve the property of boron (B) powder and dispersion of ferric oxide (Fe2O3) nanoparticles in solid propellant,the B/Fe2O3/nitrocellulose (NC) composite was prepared by an electrostatic spray method.The surface morphology of the composite was characterized by scanning electron microscopy (SEM).Thermal performance of the composite and its effect on the properties of propellant was analyzed by TG-DSC.The effect of the composite on the combustion properties of HTPB/AP propellant was studied by burning rate test and closed bomb experiment.The results show that the prepared composite exists in the form of agglomerate,the reactivity of boron in the composite is improved,and the oxidation reaction temperature is advanced.The improving effect of agglomerate boron on the combustion performance of HTPB/AP propellant is larger than raw boron powder.After the addition of Fe2O3,the combustion performance of propellant containing B can be further improved and with increasing the Fe2O3 content,the time needed to reach the highest pressure of HTPB/AP propellant in closed bomb gradually decreases.When the mass fraction of Fe2O3 is 8%,the burning rate of the propellant in air at normal pressure is the largest,which is 2.77 times of that of HTPB/AP propellant without adding B/Fe2O3/NC composite.The B/Fe2O3/NC composite has certain catalytic effect on the thermal decomposition of the propellant,and the catalytic effect becomes stronger with increasing the Fe2O3 content.关键词
硼粉/氧化铁/静电喷雾/HTPB推进剂/燃速/密闭爆发器实验Key words
boron powder/ferric oxide/electrostatic spray/HTPB propellant/burning rate/closed bomb experiment分类
军事科技引用本文复制引用
杨洪涛,李艳春,成一..B/Fe2O3/NC复合物的制备及其对HTPB/AP推进剂性能的影响[J].火炸药学报,2017,40(2):88-93,6.基金项目
国家自然科学基金资助(No.51202113) （No.51202113）
