硬脂酸包覆纳米铝粉燃烧特性  

Combustion Characterization of Nano-aluminum Coated by Stearic Acid

作　　者：堵同宽 朱宝忠[1] 李浩[1] 刘永午 孙运兰[1] 

机构地区：[1]安徽工业大学能源与环境学院,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2016年第1期23-27,共5页Journal of Anhui University of Technology（Natural Science）

基　　金：国家自然科学基金项目(51206001;51376007)

摘　　要：通过控制变量法,采用自行设计的可视化管式炉对包覆纳米铝粉的燃烧过程进行实验,研究硬脂酸包覆比例对纳米铝粉抗氧化性和燃烧性能的影响,同时采用扫描电镜和能谱分析技术对纯铝粉、包覆铝粉及其样品燃烧产物的形貌与成分进行分析。结果表明:纳米铝粉包覆后铝颗粒分散更均匀,有效保持了活性铝粉含量,铝的质量分数提高了9.62%;在氧化剂相同的条件下,硬脂酸包覆的纳米铝粉比未包覆的纳米铝粉燃烧充分,并且包覆比例以m(硬脂酸)∶m(铝)为1∶3的样品效果最好,燃烧产物中氧化铝含量最高,燃烧最充分。The experiment was performed in the visual tube furnace of our own design by controlling the variable method, and the effects of different coated proportions of stearic acid and nano-aluminum powder on antioxidant properties and combustion characteristics of nano-aluminum powder were studied, the different morphologies and components of nano-aluminum powder, coated nano-aluminum powder and combustion product were also analyzed with scanning electron microscopy and energy spectrum analysis technology. The results show that aluminum particles disperse more evenly, and the content of active aluminum of coated nano-aluminum powder is kept, the mass fraction of aluminum increases by 9.62%. The coated nano-aluminum powder burn more sufficiently than that of nano-aluminum powder, especially, the best mass proportion of stearic acid and aluminum is 1∶3,the content of alumina in the combustion products is highest of all, this sample get most fully burning.

关 键 词：纳米铝粉 包覆 硬脂酸 燃烧特性 

分 类 号：TB174.46[生物学—生物工程]