高级搜索

您是今天第:487位访问者

您是第:6277730位访问者

GAP推进剂粘接体系组分迁移动力学研究
Migration Kinetics of Ingredient in GAP Propellant and Its Bonding System
  • 摘要
  •  
  • 参考文献
  •  
  • 引证文献
  •  
  • 相似文献
中文摘要:
      为研究组分在缩水甘油叠氮聚醚(GAP)推进剂/端羟基聚丁二烯(HTPB)衬层/三元乙丙(EPDM)绝热层粘接体系中的迁移,采用高效液相色谱(HPLC)测定了经过50,60 ℃和70 ℃加速老化后体系中的主要迁移组分,计算了迁移组分的表观扩散活化能和扩散系数。结果表明,老化过程中硝酸酯增塑剂硝化甘油(NG)、1,2,4-丁三醇三硝酸酯(BTTN)发生迁移,两者的表观扩散活化能均在43~121 kJ·mol-1,扩散系数在10-19~10 -16 m2·s-1内。体系中胺类安定剂1(AD1)、胺类安定剂2(AD2)的迁移发生在固化过程,老化过程中主要以消耗为主; GAP推进剂的力学性能与推进剂中AD1的含量有关,AD1含量低于40%时,试件力学性能急剧下降。
中文关键词: 缩水甘油叠氮聚醚(GAP)  迁移  扩散活化能  扩散系数
英文摘要:
      The migrating components in the interface of the bonded samples of glycidyl azide polymer(GAP) based propellant/Hydroyl-Terminated Polybutadiene(HTPB) based liner/Ethylene-Propylene-DieneMischpolymere(EPDM) based insulation were determined by high performance liquid chromatography(HPLC) after aged at 50,60 ℃ and 70 ℃. The apparent migration activation energy(Ea) and the average diffusion coefficients (D) of the migrating components were determined. The results show that during aging nitrate ester plasticizers of nitroglycerine(NG) and 1,2,4-Butanetriol Trinitrate(BTTN) migrated from propellant to liner and insulation. The Ea values of NG and BTTN were among 43-121 kJ·mol-1 and their average diffusion coefficients were in the range of 10-19-10-16 m2·s-1. The amine stabilizers of AD1 and AD2 were found to migrate during curing of the samples, while during storage, consumption of them was the main phenomenon. It could also be concluded that the content of AD1 had correlation with the mechanic property of the bonding system. When content of AD1 was less than 40%, the tensile strength of the samples decreased sharply.
英文关键词: glycidyl azide polymer(GAP)  migration  activation energy  diffusion coefficients
DOI:10.11943/j.issn.1006-9941.2017.08.004
基金项目:
引用文献:杨秋秋,聂海英,黄志萍.GAP推进剂粘接体系组分迁移动力学研究[J].含能材料,2017,25(8):639~645
作者单位E-mail
杨秋秋 湖北航天化学技术研究所, 湖北 襄阳 441003 wendyyoung@163.com,hgzp2005@aliyun.com 
聂海英 湖北航天化学技术研究所, 湖北 襄阳 441003  
黄志萍 湖北航天化学技术研究所, 湖北 襄阳 441003 hgzp2005@aliyun.com 
摘要点击次数: 197
全文下载次数: 327
HTML 查看全文   查看/发表评论   下载PDF阅读器

更多>>

更多>>

分享按钮