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HTPB基粘结体系中ε-CL-20的晶型转变规律
作者:
作者单位:

(1. 中国工程物理研究院化工材料研究所, 四川 绵阳 621999; 2. 西南科技大学材料科学与工程学院, 四川 绵阳 621002; 3. 北京理工大学机电学院, 北京 100081)

作者简介:

徐金江(1986-),男,研究生实习员,硕士,主要从事含能材料晶体制备与性能研究。e-mail: xjjxujinjiang@126.com 通信联系人: 孙杰(1972-),男,博士,主要从事晶体特性与性能关系研究。e-mail: zhoushisun@sohu.com

通讯作者:

孙杰(1972-),男,博士,主要从事晶体特性与性能关系研究。e-mail: zhoushisun@sohu.com

基金项目:

中国工程物理研究院化工材料研究所青年人才培养基金(QNRC-201205); 国家自然科学基金(11372290,11472252)


Polymorphic Transformation of ε-CL-20 in Different HTPB-based Composite Systems
Author:
Affiliation:

(1. Institute of Chemical Materials, CAEP, Mianyang 621999, China; 2. Shcool of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621002, China; 3. Beijing Institute of Technology,Beijing 100081, China)

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    摘要:

    采用原位X-射线粉末衍射(原位XRD)技术对端羟基聚丁二烯(HTPB)基粘结体系中ε-六硝基六氮杂异伍兹烷(ε-CL-20)的晶型转变行为进行了研究, 探讨了HTPB、甲苯二异氰酸酯(TDI)、葵二酸二辛酯(DOS)、二月桂酸二丁基锡(T-12)、高氯酸铵(AP)、Al等添加剂对CL-20晶型转变的影响。结果表明, 添加剂能够引起ε-CL-20在热刺激作用下的晶型转变的起始温度发生变化, HTPB和TDI能在一定程度上包覆CL-20晶体, T-12作为胶黏的催化剂与HTPB及TDI联用时能加速包覆, 都对εγ晶型转变有抑制作用。而DOS与CL-20混合后却促使εγ的晶型转变。AP、Al与CL-20属于固固混合, 对ε-CL-20晶体的晶型转变影响不明显。另外, 将粘结体系ε-CL-20在70℃下持续加热60 h后, 发现ε-CL-20晶型未发生转变。

    Abstract:

    The method of in situ X-ray powder diffraction (in-situ XRD) was used to investigate the effect of additives such as HTPB(hydroxyl-terminated polybutadiene), TDI(toluene-2, 4-diisocyanate), DOS(dioctyl sebacate), T-12(dibutyltin dilaurate), AP(ammonium perchorate) and Al(Aluminum powder) on the polymorphic transformation of hexanitro-hexaazatetracyclo-dodecane(ε-CL-20). Results show that, under heating condition, the preliminary polymorphic transformation temperature of ε-CL-20 changes by adding the additives. The crystal of CL-20 is coated to some degree by HTPB and TDI. As an adhesive catalyst, T-12 accelerates coating combined with HTPB and TDI. But in above two cases the transformation of εγ is inhibited. DOS enhances the transformation of εγ mixed with CL-20. In addition, AP/CL-20 and Al/CL-20 are both solid-solid mixing, which has little effect on the polymorphic transformation of ε-CL-20. Moreover, while heated at 70 ℃ for 60 h, the polymorph of ε-CL-20 in all the composite systems is not changed.

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引用本文

徐金江,蒲柳,刘渝,等. HTPB基粘结体系中ε-CL-20的晶型转变规律[J].含能材料, 2015, 23(2):113-119. DOI:10.11943/j. issn.1006-9941.2015.02.002.
XU Jin-jiang, PU Liu, LIU Yu, et al. Polymorphic Transformation of ε-CL-20 in Different HTPB-based Composite Systems[J]. Chinese Journal of Energetic Materials, 2015, 23(2):113-119. DOI:10.11943/j. issn.1006-9941.2015.02.002.

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历史
  • 收稿日期: 2013-10-29
  • 最后修改日期: 2014-04-30
  • 录用日期: 2014-04-30
  • 在线发布日期: 2015-02-09
  • 出版日期: 2015-02-12