铝基亚稳态复合物与典型黏合剂混合物的流变性能  

Rheological Behavior of the Compound Mixed with Metastable Aluminum⁃based Composites and Typical Binders

作　　者：姜菡雨[1] 姚二岗[1] 张建侃 徐司雨[1] 裴庆[1] 胥会祥[1] 赵凤起[1] JIANG Han-yu;YAO Er-gang;ZHANG Jian-kan;XU Si-yu;PEI Qing;XU Hui-xiang;ZHAO Feng-qi(Science and Technology on Combustion and Explosion Laboratory,Xi′an Modern Chemistry Research Institute,Shanxi,Xi′an 710065,China)

机构地区：[1]西安近代化学研究所燃烧与爆炸技术重点实验室,陕西西安710065

出　　处：《含能材料》2021年第10期914-919,共6页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金资助(52027809);燃烧与爆炸技术重点实验室基金(6142603190302)。

摘　　要：金属燃料添加剂在黏合剂中的分散特性将极大影响火炸药的工艺性能。以两种不同形貌(球形和片状)的新型亚稳态分子间复合物铝/聚偏氟乙烯(QAlPV和PAlPV)为对象,利用RS‐300流变仪,系统研究了端羟基聚丁二烯(HTPB)、聚叠氮缩水甘油醚(GAP)和环氧乙烷四氢呋喃共聚醚(PET)典型黏合剂与两种铝基复合物形成的混合体系的流变性能。结果表明,悬浮液体系均表现出假塑性流体特征,在20~60℃内,随温度增加,表观黏度均减小。在GAP和PET体系中,含PAlPV混合体系的流动活化能均大于含QAlPV混合体系,说明片状结构的铝基复合物与这两种黏合剂形成的混合体系的刚性较大,其表观黏度对温度更敏感。因此,可通过提高温度来改善PAlPV在黏合剂中的分散性;而QAlPV与GAP、PET形成混合体系的柔性较大,可通过提高剪切速率来改善其分散性和均匀性。The dispersion characteristics of metal additives in binders might tremendously affect the processing properties of pro‐pellants and explosives.Rheological properties of the two metastable intermolecular composites(QAlPV and PAlPV)mixed with hydroxyl‐terminated polybutadiene(HTPB),glycidyl azide polymer(GAP)or poly(ethyleneoxide‐co‐teterafuran)(PET)separately were investigated by RS‐300 rheometer respectively.Results show that all the six sorts of suspensions exhibited pseudoplastic fluid characteristics,and their apparent viscosity decreases with the increase of temperature between 20℃and 60℃.In the systems containing GAP and PET,the flow activation energy of the suspensions with PALPV is greater than those containing QALPV.The results present that the suspensions filled with the lamellar aluminum‐based composite exhibites more rigidity,meanwhile their apparent viscosity are more sensitive to temperature.Therefore,the dispersion of PALPV in binders could be im‐proved by increasing the temperature.The dispersion and homogeneity of the suspensionsformed by QALPV,GAP or PET separately could be improved by accelerating the shear rate.

关 键 词：黏合剂 铝基亚稳态复合物 流变性能 流动活化能 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]