n-B/n-Ti/NC三元球形团聚颗粒的制备及燃烧性能  

Preparation and Combustion Performance of n-B/n-Ti/NC Ternary Spherical Agglomerate Particles

作　　者：刘林林[1] 熊玉姝 詹发禄 徐抗震[2] 王英红[1] 李葆萱[1] LIU Lin-lin;XIONG Yu-shu;ZHAN Fa-lu;XU Kang-zhen;WANG Ying-hong;LI Bao-xuan(National Key Laboratory of Solid Propulsion,Northwestern Polytechnical University,Xi′an 710072,China;School of Chemical Engineering,Northwest University,Xi′an 710127,China;Inner Mongolia Synthetic Chemical Engineering Institute,Hohhot 010010,China)

机构地区：[1]西北工业大学固体推进全国重点实验室,陕西西安710072 [2]西北大学化工学院,陕西西安710127 [3]内蒙合成化工研究所,内蒙古呼和浩特010010

出　　处：《火炸药学报》2025年第3期223-229,I0004,共8页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金(No.51976175)。

摘　　要：为了提高硼的燃烧效率,采用溶胀-吸附-溶解团聚-成球法制备了n-B/n-Ti/NC三元球形团聚颗粒。采用SEM和DSC对颗粒的微观结构特征及热稳定性进行了表征,并通过激光点火系统对其燃烧特性进行了研究。结果表明,在团聚颗粒制备过程中,n-B和n-Ti可被吸附进入溶胀的NC毛细管中,从而形成以NC为团聚材料、n-Ti为助燃剂、n-B为高能燃烧剂,元素均匀分布、密实度高、成球率高的三元球形团聚颗粒;当NC、n-Ti和n-B的质量分数分别为17%、8%和75%时,团聚颗粒具有最短的点火延迟期(3.42ms)和燃烧时间(8ms);团聚颗粒各组分的相容性较好,具有较强的热稳定性。To enhance the combustion efficiency of boron,n-B/n-Ti/NC ternary spherical agglomerated particles were prepared by using swelling,adsorption,dissolution agglomeration,and prilling method.SEM and DSC were used to analyze the microscopic structural properties and thermal stability of the particles,and a laser ignition system was used to investigate their combustion characteristics.The results show that n-B and n-Ti can be adsorbed into the swelling NC capillary tubes,resulting in the formation of ternary spherical agglomerate particles with uniform distribution of elements,high density and high sphericity with n-Ti as a combustion improver and n-B as high-energy combustor.At the mass ratio of NC 17%,n-Ti 8%and n-B 75%,the agglomerated particle exhibits the shortest ignition delay time(3.42ms)and combustion time(8ms).The compatibility of n-B,n-Ti and NC is very good,and the agglomerated particles have excellent thermal stability.

关 键 词：物理化学 纳米硼 纳米钛 球形团聚 硝化纤维素 点火延迟 燃烧性能 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O643.2[理学—物理化学]