火炸药学报2017，Vol.40Issue(4)：92-96,5.DOI:10.14077/j.issn.1007-7812.2017.04.017
TEGDN含量和NC含氮量对TEGDN/NG混合酯双基推进剂力学性能的影响
Effect of TEGDN Content and NC Nitrogen Content on Mechanical Properties of Double-base Propellant
摘要
Abstract
The 24 kinds of double-base propellant samples with different TEGDN content, as well as NC nitrogen contents, were prepared by solvent-free method, and the mechanical properties at high temperature (50℃), room temperature (20℃) and low temperature (-40℃) were tested.The effect of TEGDN content and NC nitrogen content on the mechanical properties of double-base propellant was discussed.The results show that the tensile strength of mixed ester double-base propellant decreases gradually with the increase of TEGDN contents at the high temperature and room temperature, and when the mass fraction of TEGDN is lower than 7.7%, it shows a downward trend with the increase of nitrogen contents in NC, when the mass fraction of TEGDN is higher than 15.4%, it shows a trend of increase at first and then decrease with the increase of nitrogen contents in NC.The tensile strength of the samples increases gradually with the increase of TEGDN content at low temperature, then decreases gradually with the increase of nitrogen contents in NC.The elongation at break at high temperature, room temperature and low temperature increases gradually with the increase of TEGDN content, and decreases gradually with the increase of nitrogen content in NC.The plasticizing properties of NC can be improved by increasing the amount of TEGDN,but the NC with 12.6% or more nitrogen content can not be well plasticized.关键词
硝化三乙二醇(TEGDN)/混合酯/含氮量/双基推进剂/力学性能Key words
TEGDN/mixed nitric ester/nitrogen content/double-base propellant/mechanical properties分类
军事科技引用本文复制引用
赵本波,刘强,李伟,黄家琪,凌剑..TEGDN含量和NC含氮量对TEGDN/NG混合酯双基推进剂力学性能的影响[J].火炸药学报,2017,40(4):92-96,5.基金项目
北化集团2015年度青年科技创新专项资助(No.QKCZ-JP-2015-11) （No.QKCZ-JP-2015-11）
