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[1]贾林,张林军,常海,等.热应力下1,5-二叠氮-3-硝基氮杂戊烷对发射药中硝化棉热行为的影响[J].火炸药学报,2018,41(4):414-419.[doi:10.14077/j.issn.1007-7812.2018.04.017]
 JIA Lin,ZHANG Lin-jun,CHANG Hai,et al.Influence of 1, 5-Diazido-3-nitrazapentane (DIANP) on the Thermal Behavior of NC in Gun Propellant under Heat Stress[J].,2018,41(4):414-419.[doi:10.14077/j.issn.1007-7812.2018.04.017]
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热应力下1,5-二叠氮-3-硝基氮杂戊烷对发射药中硝化棉热行为的影响()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第4期
页码:
414-419
栏目:
出版日期:
2018-08-23

文章信息/Info

Title:
Influence of 1, 5-Diazido-3-nitrazapentane (DIANP) on the Thermal Behavior of NC in Gun Propellant under Heat Stress
作者:
贾林 张林军 常海 杜姣姣 朱一举 王琼
西安近代化学研究所, 陕西 西安 710065
Author(s):
JIA Lin ZHANG Lin-jun CHANG Hai DU Jiao-jiao ZHU Yi-ju WANG Qiong
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
关键词:
物理化学发射药15-二叠氮-3-硝基氮杂戊烷(DIANP)硝化棉横向弛豫时间微观力学性能
Keywords:
physical chemistrygun propellant15-diazido-3-nitrazapentane(DIANP)nitrocellulosetransversal relaxation timemicromechanical property
分类号:
TJ55;O64
DOI:
10.14077/j.issn.1007-7812.2018.04.017
文献标志码:
-
摘要:
用1,5-二叠氮-3-硝基氮杂戊烷(DIANP)替换硝基胍发射药(样品A)中部分(质量分数6%)硝化甘油(NG),制成发射药(样品B),两种发射药分别密封后在90℃老化34 d。通过低场核磁共振、纳米压痕、液相色谱、红外光谱、元素分析试验研究了DIANP对发射药中硝化棉(NC)热行为的影响。结果表明,随着老化时间的延长,样品中NC的横向弛豫时间T2值呈现出先增大再减小的趋势,T2值与老化时间的对数呈线性相关;样品B的T2比样品A更快达到峰值,说明DIANP对高氮量NC的溶塑速度快于NG;T2达到峰值后继续老化至34 d,由于DIANP与NC形成大量氢键,使样品B中NC的运动受到更多限制,因此样品B的T2下降速度稍快于样品A;样品B的微观力学性能(硬度和弹性模量)的变化规律与T2的变化规律一致,说明T2可以反映样品的微观力学性能。
Abstract:
A new gun propellant (sample B) was prepared via replacing the partial (mass fraction as 6%) nitroglycerin (NG) in the nitroguanidine (NQ)-based gun propellant (sample A) by 1, 5-diazido-3-nitrazapentane (DIANP). The two kinds of gun propellants after being sealed were aged at 90℃ for 34d, respectively. The effects of DIANP on the thermal behavior of nitrocellulose (NC) in the gun propellant were studied by low field nuclear magnetic resonance, nanoindentation, liquid chromatography, infrared spectrum and elemental analysis test. The results show that with prolonging the aging time, the values of transversal relaxation time T2 of NC in the sample reveal a trend of first increase and then decrease, and the T2 value is linearly related to the logarithm of aging time. The T2 value reaching the peak of sample B is faster than sample A, indicating that the dissolving plastic rate of DIANP on NC with high nitrogen content is quicker than that of NG. After T2 reaching the peak, the sample continues to age to 34d, the movement of NC in sample B was more limited because of the formation of a large number of hydrogen bonds between DIANP and NC, so the decrease rate of T2 value of sample B is slightly faster than that of sample A. The change rules of micromechanical properties (hardness and elastic modulus) of sample B are consistent with the change rule of T2, indicating that the T2 can reflect the micromechanical property of sample.

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备注/Memo

备注/Memo:
收稿日期:2018-01-08;改回日期:2018-04-12。
基金项目:国防科技工业技术基础项目(No.B0920110005)
作者简介:贾林(1970-),女,研究员,从事火炸药理化性能、老化性能及环境适应性研究。E-mail:1169855351@qq.com
通讯作者:常海(1962-),男,研究员,从事含能材料结构与性能研究。E-mail:chang_hai_2011@126.com
更新日期/Last Update: 1900-01-01