CHINESE JOURNAL OF ENERGETIC MATERIALS
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多孔网状HMX的制备与表征
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(中国工程物理研究院化工材料研究所, 四川 绵阳 621999)

作者简介:

陈娅(1975-),女,副研究员,主要从事含能材料的制备与表征研究。e-mail: girl13086401527@163.com 通信联系人: 李金山(1968-),男,研究员,主要从事含能材料的制备与表征研究。e-mail: ljs915@263.net

通讯作者:

李金山(1968-),男,研究员,主要从事含能材料的制备与表征研究。e-mail: ljs915@263.net

基金项目:

国家自然科学基金资助项目(11372290); 院重大基金资助项目(2012A0302013)


Preparation and Characterization of Porous Reticular HMX
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(Institute of Chemical Materials, CAEP, Mianyang 621999, China)

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    摘要:

    将奥克托今(HMX)溶于二甲基亚砜(DMSO)中, 获得HMX/DMSO络合物晶体, 再将其分别加入蒸馏水和含聚乙烯吡咯烷酮(PVP)的溶液中, 制备了A类多孔网状HMX(PHMX-A)和B类多孔网状HMX(PHMX-B)。用扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)、压汞分析仪及TG-DSC热分析仪对多孔网状HMX进行了表征。结果表明:多孔网状HMX由众多的孔和均匀连续的骨架构成, 具有高的比表面积和孔隙率。PHMX-A全部为β型晶体, 其比表面积为5.3 m2·g-1, 平均孔径为501 nm, 孔隙率为56.1%;而PHMX-B有80%为β型晶体, 含少量的γ型晶体, 其比表面积为19.0 m2·g-1, 平均孔径为75 nm, 孔隙率为37.2%。与HMX原料相比, PHMX-A和PHMX-B的相转变温度分别提前了2.8 ℃和17.5 ℃, 其热分解温度分别提前了0.3 ℃和1.3 ℃, 而其热失重开始温度分别提前了4 ℃和14 ℃。

    Abstract:

    Two types of porous reticular HMX, PHMX-A and PHMX-B, were prepared by adding octogen(HMX)/ dimethylsulfoxide(DMSO)complex, which was obtained by mixing HMX and DMSO, into pure distilled water or the solution containing polyvinyl pyrrolidone. Their structures were characterized by scanning electron microscope, X-Ray diffraction, mercury pressure method and thermogravimetry-differential scanning calorimetry. Results show that both porous reticular HMXs are consist of homogeneous continuous skeleton and many pores, and have high specific surface area and porosity. PHMX-A is absolutely β-type crystal, while PHMX-B contains a little γ-type crystal. The SSAs for PHMX-A and PHMX-B are 5.3 m2·g-1 and 19.0 m2·g-1, the mean pore diameters are 501nm and 75nm, and the porosities are 56.1% and 37.2%, respectively. The phase inversion temperature, thermal decomposition temperature and initial decomposition temperatures for PHMX-A and PHMX-B compared with those of raw HMX, are all advanced by 2.8 ℃ and 17.5 ℃, 0.3 ℃ and 1.3 ℃, 4 ℃ and 14 ℃, respectively.

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引用本文

陈娅,徐瑞娟,刘渝,等.多孔网状HMX的制备与表征[J].含能材料, 2015, 23(6):606-609. DOI:10.11943/j. issn.1006-9941.2015.06.018.
CHEN Ya, XU Rui-juan, LIU Yu, et al. Preparation and Characterization of Porous Reticular HMX[J]. Chinese Journal of Energetic Materials, 2015, 23(6):606-609. DOI:10.11943/j. issn.1006-9941.2015.06.018.

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  • 收稿日期: 2014-09-03
  • 最后修改日期: 2015-01-14
  • 录用日期: 2015-02-11
  • 在线发布日期: 2015-05-13
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