钙钛矿含能材料DAP-4的制备工艺
Preparation Technology of Perovskite High-energetic Material DAP-4
查看参考文献12篇
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文摘
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为了确定钙钛矿型含能材料DAP-4的最佳制备工艺,以六水三乙烯二胺、高氯酸铵、高氯酸为原料,首先通过单因素实验确定了对DAP-4产率影响较大的因素是高氯酸体积、去离子水体积和出料温度,影响较小的因素是反应时间和反应温度。以此为基础,通过设计三因素三水平正交试验确定了最佳制备工艺,并测得各个实验条件下DAP-4颗粒的粒度、热分解性能及感度。结果表明,各因素对DAP-4产率影响的大小顺序为:高氯酸体积=出料温度>去离子水体积;最佳制备工艺为:高氯酸体积(质量分数35%)为32.6mL(投料比为1 ∶ 1 ∶ 7.5),去离子水体积为125mL,出料温度为20℃,此条件下DAP-4的产率可达到95.9%;改变高氯酸体积、去离子水体积、出料温度等条件对DAP-4的形貌和粒度影响不大,粒径分布在50~ 90μm之间;不同工艺条件下合成的DAP-4样品表观活化能在175~ 217kJ /mol之间,撞击感度和静电感度均钝感。 |
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其他语种文摘
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To identify the optimal preparation process of perovskite energetic material DAP-4,triethylenediamine hexahydrate, ammonium perchlorate,and perchloric acid as raw materials were used. Firstly,it was determined that the factors including perchloric acid,deionized water,and the discharge temperature had a greater effect on the yield of DAP-4 through single-factor experiments,and the less influential factors were the reaction time and reaction temperature. Then,the optimal preparation process was determined by designing three-factor and three-level orthogonal experiments,and the particle diameter, thermal decomposition performance,and sensitivity of DAP-4 under each experimental condition were also measured. The results showed that the influence of each factor on the yield of DAP-4 was as follows: perchloric acid = discharge temperature > deionized water,and the best preparation process was: the volume of perchloric acid (the mass fraction is 35%) was 32.6mL (n1 ∶ n2 ∶ n3 = 1 ∶ 1 ∶ 7.5),and the deionized water was 125mL and the discharge temperature was 20℃. Under these conditions,the yield of DAP-4 can reach 95.9%,and changing the amount of perchloric acid,deionized water, and discharge temperature had little effect on the morphology and particle diameter of DAP-4,and the particle diameter distribution was between 50-90μm,the apparent activation energy of DAP-4 samples synthesized under different process conditions ranged from 175 to 217kJ /mol,and the impact sensitivity and electrostatic sensitivity were both insensitive. |
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来源
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火炸药学报
,2022,45(4):479-485 【核心库】
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DOI
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10.14077/j.issn.1007-7812.202202006
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关键词
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应用化学
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钙钛矿含能材料
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DAP-4
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正交试验
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工艺优化
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地址
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陕西应用物理化学研究所, 陕西, 西安, 710061
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-7812 |
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学科
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化学;武器工业 |
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基金
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国防科技重点实验室基金
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文献收藏号
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CSCD:7288123
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