含能材料Issue(4)：495-499,5.DOI:10.3969/j.issn.1006-9941.2013.04.018
DNTF／RDX-CMDB推进剂低温力学性能
Mechanical Properties for DNTF/RDX-CMDB Propellants at Low Temperature
肖玮 1李亮亮 1王江宁 1苏健军 1王世英 1董树南 1屈可朋1
作者信息
- 1. 西安近代化学研究所，陕西 西安 710065
- 折叠
摘要
Abstract
Influence of different ratios of 1,3,5-trinitrohexahydrotriazine(RDX)to 3,4-bisnitrofurazan-furoxan(DNTF)on the me-chanical properties of DNTF/RDX composite modified double-base( CMDB)propellant( DNTF/RDX-CMDB,DFR propellant) was studied by uniaxial tensile test,charpy impact test and dynamic mechanical analyzer. The tensile strength(σm ),elongation at the maximum stress(εm )and impact strength( aK )of DFR propellant at -40 ℃ were obtained. The dynamical characteristics (viscoelastic coefficients Cg1)of β-relaxation was acquired by WLF equation according to the“Time-Temperature”equivalence principle. The effect of plasticizer content on the various mechanical properties and change rule of σm and εm were analyzed, showing that a good correlation between σm ,εm ,aK at low temperature and plasticizer content. The plasticizer content reducing, Cg1 increasing,“free volume of side group of NC molecule”decreasing make the mechanical performances(σm and εm )worsen.关键词
物理化学/改性双基推进剂/力学性能/3,4-二硝基呋咱基氧化呋咱(DNTF)/RDXKey words
physical chemistry/composite modified double-base propellant/mechanical performance/3,4-bisnitrofurazanfuroxan (DNTF)/1,3,5-trinitrohexahydrotriazine(RDX)分类
军事科技引用本文复制引用
肖玮,李亮亮,王江宁,苏健军,王世英,董树南,屈可朋..DNTF／RDX-CMDB推进剂低温力学性能[J].含能材料,2013,(4):495-499,5.
