Enhanced Non-linear Viscoelastic Properties of Polymer Bonded Explosives Based on Graphene and a Neutral Polymeric Bonding Agent
Enhanced Non-linear Viscoelastic Properties of Polymer Bonded Explosives Based on Graphene and a Neutral Polymeric Bonding Agent
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基于石墨烯和中性聚合物粘结剂的聚合物粘结炸药的增强非线性粘弹性性能
DOI：
10.22211/cejem/78753
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发表时间：
2017
影响因子：
0.8
通讯作者：
Liu Shijun
中科院分区：
文献类型：
--
作者：
Lin Congmei;He Guansong;Liu Jiahui;Pan Liping;Liu Shijun
聚合物粘结炸药在长期储存和运输过程中，将受到复杂的热物理环境和热机械载荷的综合作用。蠕变行为导致物理和机械性能的变化，从而影响爆炸性能。在这项工作中，选择石墨烯和中性聚合物键合剂（NPBA）来改善基于1，3，5-三氨基-2，4，6-三硝基苯（TATB）的PBX的非线性蠕变性能。将结果与不含添加剂和仅含石墨烯的相应PBX的蠕变响应进行比较。据观察，石墨烯和NPBA表现出积极的效果，提高了TATB基PBX的抗蠕变性。0.5wt.%的压缩和拉伸强度与不含添加剂的原始TATB基PBX相比，石墨烯填充的PBX分别提高了5.1%和29.2%。通过添加0.1重量%的聚对苯二甲酸乙二醇酯，进一步增强了PBX的性能。NPBA。对于给定的应力和温度，具有石墨烯和NPBA的基于TATB的PBX的变形显著小于仅填充有石墨烯的PBX。
During their long-term storage and transport, polymer bonded explosives (PBXs) will be subjected to complex thermal physical environments with combined thermal and mechanical loads. The creep behaviour results in a change of physical and mechanical properties, which consequently influences the explosive performance. In this work, graphene and a neutral polymeric bonding agent (NPBA) were selected to improve the non-linear creep properties of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)-based PBXs. The results were compared with the creep response of the corresponding PBXs without additives and with graphene alone. It was observed that graphene and an NPBA exhibited a positive effect, improving the creep resistance of TATB-based PBXs. The compressive and tensile strength of 0.5 wt.% graphene-filled PBXs were improved by 5.1% and 29.2%, respectively, compared to raw TATB-based PBXs without additives. The performance of the PBXs was further enhanced by the addition of 0.1 wt.% NPBA. For a given stress and temperature, the TATB-based PBXs with graphene and NPBA deformed significantly less than the PBXs filled with graphene alone.