机械粉碎法制备纳米CuCr2O4及其对高氯酸铵热分解性能的影响

doi:10.3969/j.issn.1000-1093.2015.09.008

兵工学报 ›› 2015, Vol. 36 ›› Issue (9): 1654-1659.doi: 10.3969/j.issn.1000-1093.2015.09.008

机械粉碎法制备纳米CuCr₂O₄及其对高氯酸铵热分解性能的影响

郝嘎子¹，刘杰¹，肖磊¹，高寒¹，姜炜¹，李凤生¹，赵凤起²，高红旭²

收稿日期:2014-07-17 修回日期:2014-07-17 上线日期:2015-11-20
作者简介:郝嘎子（1989—），男，博士研究生
基金资助:
基础产品创新技术火炸药科研专项（2012年）；国家自然科学基金项目（51206081）

Preparation of Nano-sized Copper Chromite via a Mechanical Grinding Method and Its Effect on Thermal Decomposition ofAmmonium Perchlorate

HAO Ga-zi¹, LIU Jie¹, XIAO Lei¹, GAO Han¹, JIANG Wei¹, LI Feng-sheng¹,

(1.National Special Superfine Powder Engineering Research Center of China, School of Chemical Engineering, NanjingUniversity of Science and Technology, Nanjing 210094, Jiangsu, China; 2.Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, Shaanxi,China)

Received:2014-07-17 Revised:2014-07-17 Online:2015-11-20

摘要/Abstract

摘要： 采用HLG-5型纳米化粉碎机批量制备了粒径约为60 nm的纳米CuCr₂O₄. 通过X射线衍射仪（XRD）、透射电子显微镜（TEM）对样品的结构及形貌进行表征，并采用差示扫描量热仪（DSC）分别研究工业CuCr₂O₄、共沉淀法制备的纳米CuCr₂O₄及机械粉碎法制备的纳米CuCr₂O₄对高氯酸铵（AP）热分解性能的影响。结果表明，与前二者相比，机械粉碎法制备的纳米CuCr₂O₄对AP具有更好的催化性能，能够使其速率常数提高，高温分解活化能减小。这将促进纳米CuCr₂O₄作为燃速催化剂在AP基复合推进剂中的应用。

关键词: 兵器科学与技术, 纳米CuCr2O4, 机械粉碎, 高氯酸铵, 热分解, 催化效果

Abstract: Nano-sized CuCr₂O₄ (copper chromite) with a particle size of 60 nm is prepared in large-scale via a HLG-5 type nanometer grinder. The microstructure and morphology of sample are characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The catalytic effects of industrial CuCr₂O₄, nano-CuCr₂O₄ prepared by coprecipitation method and nano-CuCr₂O₄ prepared by mechanical grinding method on thermal decomposition of ammonium perchlorate (AP) are investigated by a differential scanning calorimeter (DSC). The results show that nano-CuCr₂O₄ prepared by mechanical grinding method has the best catalytic effect on AP as compared to the former two, improving the reaction rate constant and decreasing the high temperature decomposition activation energy. Nano-CuCr₂O₄ prepared by mechanical grinding method is promising as a high-performing combustion catalyst in AP-based composite propellants.

Key words: ordnance science and technology, nano-sized copper chromite, mechanical grinding, ammonium perchlorate, thermal decomposition, catalytic effect

中图分类号:

V512

郝嘎子，刘杰，肖磊，高寒，姜炜，李凤生，赵凤起，高红旭. 机械粉碎法制备纳米CuCr₂O₄及其对高氯酸铵热分解性能的影响[J]. 兵工学报, 2015, 36(9): 1654-1659.

HAO Ga-zi, LIU Jie, XIAO Lei, GAO Han, JIANG Wei, LI Feng-sheng,. Preparation of Nano-sized Copper Chromite via a Mechanical Grinding Method and Its Effect on Thermal Decomposition ofAmmonium Perchlorate[J]. Acta Armamentarii, 2015, 36(9): 1654-1659.

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机械粉碎法制备纳米CuCr₂O₄及其对高氯酸铵热分解性能的影响

Preparation of Nano-sized Copper Chromite via a Mechanical Grinding Method and Its Effect on Thermal Decomposition ofAmmonium Perchlorate

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