• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Enhanced non-linear viscoelastic properties of TATB-based polymer bonded explosives filled with hybrid graphene/multiwalled carbon nanotubes
【24h】

Enhanced non-linear viscoelastic properties of TATB-based polymer bonded explosives filled with hybrid graphene/multiwalled carbon nanotubes

机译：增强填充有杂交石墨烯/多壁碳纳米管的TATB基聚合物键合炸药的非线性粘弹性性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, hybrid graphene/multiwalled carbon nanotubes (MWCNTs) nanofillers were selected to improve to non-linear viscoelastic properties of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)-based polymer bonded explosive (PBX). The morphology, mechanical properties, and creep behaviors of TATB-based formulations were studied. The results were compared with the corresponding composites with individual graphene nano-additives. Scanning electron microscopy observation results indicated graphene particles were fairly well dispersed in the nanocomposite filled with hybrid graphene/MWCNTs, while graphene sheets were prone to aggregation in the PBX filled with individual graphene. Hybrid graphene/MWCNTs modified PBX exhibited higher storage modulus in the whole temperature range. The compressive fracture energy (W-c) and tensile fracture energy (W-t) at 20 degrees C were up to 31.6% and 89.6% higher than that of PBX without nanofillers. The creep responses of the composites were determined by short-time creep tests at various temperatures and stresses. The creep compliance curve for TATB-based PBXs showed a remarkable synergetic effect between graphene and MWCNTs in improving the creep resistance. The better dispersion of graphene nanoparticles and higher interfacial zones, which produced strong interfacial interaction between the graphene and polymer matrix to restrict the mobility of polymer chains, were considered as crucial factors for the improvement in the creep resistance for TATB-based PBXs.
机译：在这项工作中，选择杂化石墨烯/多晶碳纳米管（MWCNT）纳米填料，改善为1,3,5-三氨基-2,4,6-三硝基苯（TATB）的聚合物键合爆炸物的非线性粘弹性性能（PBX ）。研究了TATB的配方的形态，机械性能和蠕变行为。将结果与具有单个石墨烯纳米添加剂的相应复合材料进行比较。扫描电子显微镜观察结果表明石墨烯颗粒在填充有杂交石墨烯/ MWCNT的纳米复合材料中分散得很好，而石墨烯片在填充有单个石墨烯的PBX中易受聚集。杂交石墨烯/ MWCNT改性PBX在整个温度范围内显示出更高的储存模量。在20℃下的压缩断裂能量（W-C）和拉伸断裂能量（W-T）高达31.6％，而没有纳米填料的PBX高出31.6％和89.6％。复合材料的蠕变响应通过在各种温度和应力下的短时蠕变试验确定。基于TATB的PBX的蠕变顺应性曲线在石墨烯和MWCNT方面提高了抗蠕变性的显着协同作用。石墨烯纳米颗粒和较高界面区的更好分散，它在石墨烯和聚合物基质之间产生强界面相互作用以限制聚合物链的迁移率，被认为是改善基于TATB的PBX的蠕变性的关键因素。

著录项

  • 来源
    《RSC Advances》 |2015年第115期|共9页
  • 作者

    Lin Congmei; He Guansong; Liu Jiahui; Huang Zhong; Pan Liping; Zhang Jianhu; Liu Shijun;

  • 作者单位

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

    China Acad Engn Phys Inst Chem Mat Mianyang 621900 Sichuan Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号