[1]殷求实,邓国栋,肖磊,等.片状铝粉的制备及其活性[J].爆破器材,2016,45(04):30-34.[doi:10.3969/j.issn.1001-8352.2016.04.007]
 YIN Qiushi,DENG Guodong,XIAO Lei,et al.Preparation and Activity of Flake Aluminum Powder[J].EXPLOSIVE MATERIALS,2016,45(04):30-34.[doi:10.3969/j.issn.1001-8352.2016.04.007]
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片状铝粉的制备及其活性()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
45
期数:
2016年04
页码:
30-34
栏目:
爆炸材料
出版日期:
2016-07-12

文章信息/Info

Title:
Preparation and Activity of Flake Aluminum Powder
文章编号:
5059
作者:
殷求实邓国栋肖磊周帅鲁磊明郁榴华
南京理工大学国家特种超细粉体工程技术研究中心(江苏南京,210094)
Author(s):
YIN QiushiDENG GuodongXIAO LeiZHOU ShuaiLU LeimingYU Liuhua
National Special Superfine Powder Engineering Center, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
关键词:
球形铝粉片状铝粉制备活性铝含量氧化反应活性
Keywords:
spherical aluminum powder flake aluminumpowder preparation content of active aluminum oxidation reaction activity
分类号:
TQ560.4
DOI:
10.3969/j.issn.1001-8352.2016.04.007
文献标志码:
A
摘要:
采用立式球磨机,在乙酸乙酯溶剂中对平均粒径14 μm的球形铝粉进行球磨,制备了具有高活性的片状铝粉。采用激光粒度仪和扫描电子显微镜(SEM)对铝粉球磨前、后的粒度及形貌进行了分析。用X射线粉末衍射(XRD)对铝粉球磨前、后晶型进行了表征,发现球磨2 h后,得到的粒径大小为1 μm的片状铝粉,其晶形与原料铝粉晶形一致。通过氧化还原滴定法测试了球磨前、后铝粉中活性铝的质量分数,分别为90.41%和98.42%。采用TG-DSC法对球磨前、后的铝粉进行了热反应特性研究,发现片状铝粉在480~980 ℃时,氧化增重84.8%,氧化反应活性明显高于原料铝粉。因此,铝粉片状化能够提高推进剂以及火炸药体系的能量。
Abstract:
In order to obtain flake aluminum powder with high activity, a vertical ball miller was employed to mill spherical aluminum powder with average particle size of 14 μm, and ethyl acetate was used as solvent. Morphology and particle size of aluminum powder before and after milling was analyzed using laser size analyzer and scanning electron microscopy (SEM). Crystal structure of aluminum powder before and after milling was also characterized by X-ray powder diffraction (XRD). It is found that 1 μm flake aluminum powder could be prepared through milling (ethyl acetate as solvent) for 2 h, and it has the same crystal form as aluminum powder before milling. Furthermore, the mass fraction of active aluminum before and after milling was determined by oxidationreduction titration reaction, which is 90.41% and 98.42% respectively. The thermal reaction characteristics of aluminum powder before and after milling were investigated by TGDSC method.In TGDSC test, the weight of aluminum powder after milling increases by 84.8% between 480 ℃ and 980 ℃, indicating that oxidation reactivity of aluminum is greatly improved by ballmilling. Therefore, the superfining and laminarization of aluminum powder can enhance the energy of propellant and explosive.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-01-05
基金项目:国防火炸药科研专项项目(AS03141)
作者简介:殷求实(1991-),男,硕士研究生,主要从事含能材料的研究。E-mail:1538806787@qq.com
通信作者:邓国栋(1965-),男,高级工程师,主要从事含能材料工艺研究。E-mail:13505196092@163.com
更新日期/Last Update: 2016-07-11