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[1]张怀龙,吴瑞强,肖乐勤,等.挤出滚圆造粒法制备团聚硼颗粒[J].火炸药学报,2019,42(5):497-503.[doi:10.14077/j.issn.1007-7812.2019.05.013]
 ZHANG Huai-long,WU Rui-qiang,XIAO Le-qin,et al.Preparation of Agglomerated Boron Particles by Extrusion-spheronization Method[J].,2019,42(5):497-503.[doi:10.14077/j.issn.1007-7812.2019.05.013]
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挤出滚圆造粒法制备团聚硼颗粒()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
42卷
期数:
2019年第5期
页码:
497-503
栏目:
出版日期:
2019-10-31

文章信息/Info

Title:
Preparation of Agglomerated Boron Particles by Extrusion-spheronization Method
作者:
张怀龙 吴瑞强 肖乐勤 周伟良 龙义强
1. 南京理工大学化工学院, 江苏 南京 210094;
2. 山西北方兴安化学工业有限公司, 山西 太原 030008;
3. 四川临港五洲工程设计有限公司, 四川 泸州 646000
Author(s):
ZHANG Huai-long WU Rui-qiang XIAO Le-qin ZHOU Wei-liang LONG Yi-qiang
1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
2. Shanxi North Xing’an Chemical Industry Co. Ltd., Taiyuan 030008, China;
3. Sichuan Lingang Wuzhou Engineering Design Co. Ltd., Luzhou Sichuan
关键词:
应用化学团聚硼挤出滚圆造粒法硼粉堆积密度
Keywords:
applied chemistryagglomerated boron particlesthe extrusion-spheronization methodboron powderbulk density
分类号:
TJ55;O69
DOI:
10.14077/j.issn.1007-7812.2019.05.013
文献标志码:
-
摘要:
为改善团聚硼的球形度,提高颗粒的堆积密度和生产效率,采用医药领域微药丸制备工艺——挤出滚圆造粒法,以微晶纤维素(MCC)、3,3-二叠氮甲基氧丁环-四氢呋喃共聚醚(PBT)和聚叠氮缩水甘油醚(GAP)为黏结剂制备了团聚硼颗粒,并使用三维视频显微镜观察了团聚硼颗粒的形貌,测试了颗粒的粒径及其分布、堆积密度等性能。结果表明,以MCC为黏结剂、羧甲基纤维素钠(CMC)为表面活性剂,且质量分数分别为17.25%和2.75%时,预混物料能满足挤出滚圆造粒的要求,制备得到的团聚硼颗粒呈类球形;以PBT为黏结剂,当其质量分数大于25%时能制备得到团聚硼颗粒,但颗粒形状不规则;以GAP为黏结剂且其质量分数达到30%时,预混物料能满足挤出滚圆工艺的要求,制备的团聚硼颗粒呈类球形。挤出滚圆造粒法制备的团聚硼颗粒的粒径分散性小,堆积密度较高,约90%的GAP/B(质量比30:70)团聚硼颗粒粒径在0.2~0.5 mm范围内,其堆积密度达到1.05 g/cm3
Abstract:
To improve the sphericity of agglomerated boron particles and increase the bulk density and production efficiency, the extrusion-spheronization method, which is used to prepare the micro pills in the field of medicine, was utilized to prepare the agglomerated boron particles with the microcrystalline cellulose (MCC), 3,3-bis (azidomethyl) oxetane and tetrahydrofuran copolyether (PBT) and gycidyl azide polymer (GAP) as binders, respectively. The morphology of the agglomerated boron particles was observed by 3D video microscope, and the particle size and its distribution, bulk density were also investigated. The results show that when using MCC(mass fraction of 17.25%)as the binder and sodium carboxyl methyl cellulose (CMC) (mass fraction of 2.75%)as the surfactant, the premixed material can meet the requirements of the extrusion-spheronozation method, and the particles obtained are nearly spherical. When PBT is used as the binder with the mass fraction higher than 25%, the particles can be prepared and the morphology of the particles are irregular. When GAP is used as the binder with mass fraction of 30%, the premixed material can also meet the process requirements and the particles obtained are nearly spherical. The size distribution of the agglomerated boron particles prepared by the extrusion-spheronization method is narrow and the bulk density is high. The particle size of 90% GAP/B (mass ratio of 30:70) agglomerated boron particles is in the range of 0.2-0.5 mm and the bulk density can reach to 1.05 g/cm3.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-12-28;改回日期:2019-02-12。
基金项目:总装预研重点基金(No.9140A280204BQ02025)
作者简介:张怀龙(1990-),男,博士研究生,从事硼粉的改性研究。E-mail:zhhlchxjx@163.com
通讯作者:肖乐勤(1972-),女,副研究员,从事发射药与推进剂方面的研究。E-mail:leqinxiao@163.com
更新日期/Last Update: 1900-01-01