无机材料学报 ›› 2014, Vol. 29 ›› Issue (5): 523-528.DOI: 10.3724/SP.J.1077.2014.13447

• 研究论文 • 上一篇    下一篇

前处理温度与氯化钠浓度对ZSM-5沸石能量耗散特性的影响

孙岳霆1, 许 骏2, 李一兵1, 徐晓庆1, 刘 成3   

  1. (1. 清华大学 汽车安全与节能国家重点实验室, 北京 100084; 2. 哥伦比亚大学 地球与环境工程系, 美国纽约10027; 3. 装甲兵工程学院, 北京 100072)
  • 收稿日期:2013-09-02 修回日期:2013-11-13 出版日期:2014-05-20 网络出版日期:2014-04-24
  • 作者简介:孙岳霆(1988–), 男, 博士研究生. E-mail: syt06@mails.tsinghua.edu.cn
  • 基金资助:

    清华大学自主科研计划国际合作基础研究专项(20121080050); 汽车安全与节能国家重点实验室(ZZ2011-112)

Effect of Pretreatment Temperature and Sodium Chloride Concentration on Energy Dissipation Characteristics of ZSM-5/Water System

SUN Yue-Ting1, XU Jun2, LI Yi-Bing1, XU Xiao-Qing1, LIU Cheng3   

  1. (1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China; 2. Department of Earth and Environmental Engineering, Columbia University, New York NY 10027, USA; 3. Academy of Armored Force Engineering, Beijing 100072, China)
  • Received:2013-09-02 Revised:2013-11-13 Published:2014-05-20 Online:2014-04-24
  • About author:SUN Yue-Ting. E-mail: syt06@mails.tsinghua.edu.cn
  • Supported by:

    International Joint Research Project Sponsored by Tsinghua University (20121080050); Individual-research Founding State Key Laboratory of Automotive Safety & Energy, Tsinghua University (ZZ2011-112)

摘要: 高能量耗散密度材料的研发是防护工程领域的研究热点。纳米多孔材料具有超大的比表面积, 其与液体的相互作用能够耗散大量外界能量, 因此在车辆碰撞安全等领域具有出色的应用前景。本研究选取ZSM-5沸石/NaCl溶液系统, 通过准静态实验研究该系统的能量耗散行为, 并阐明其机理, 同时参数化地研究了沸石的前处理温度(600~1100℃)及溶液的NaCl浓度(0~2 mol/kg)对系统能量耗散性能的影响。结果表明: 该系统在准静态加载条件下具有较高的能量耗散密度, 达到12 J/g, 且可重复使用; 该系统的工作性能可在较大范围内调节, 其能量耗散密度与沸石前处理温度正相关, 与NaCl浓度负相关; 其工作压强与沸石前处理温度及NaCl浓度均正相关。本研究为开发智能、可控和高效的能量耗散系统提供了必要的基础理论与实验依据。

关键词: 纳米多孔材料, 能量耗散, 前处理温度, 离子浓度, 安全防护

Abstract: Research and development of new materials with high energy dissipation density is of intriguing interest in protective engineering fields. With ultra-large specific surface area, nanoporous material enables a high-efficiency energy dissipation system by interaction with liquids, which has a promising application in vehicle crash safety and anti-explosion for armored vehicles. In this paper, ZSM-5 zeolite / NaCl solution system, a mixture with ZSM zeolite immersed in sodium chloride solution was experimentally investigated. Its energy dissipation characteristics and working mechanism were explored by quasi-static compression experiments. Effect of pretreatment temperature of ZSM-5 zeolite (600–1100℃) and NaCl concentration of the solution (0–2 mol/kg) were examined parametrically. Results show that the energy dissipation density of ZSM-5 zeolite / NaCl solution system can reach 12 J/g, as a reusable system under quasi-static loading. Its performance characteristics can be finely tuned by pretreatment of ZSM-5 and adding different concentrations of NaCl. The energy dissipation density increases with pretreatment temperature and decreases with NaCl concentration, while its working pressure increases with both of them. This work is of significance for the development of intelligent, controllable and efficient energy dissipation devices.

Key words: nanoporous material, energy dissipation, pretreatment temperature, ion concentration, safety protection

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