含能材料2011，Vol.19Issue(4)：420-424,5.DOI:10.3969/j.issn.1006-9941.2011.04.015
高温老化后HMX基PBX的压缩与拉伸性能反向变化研究
Reverse Change of Compressive and Tensile Properties of PBX Based on HMX Aged at High Temperature
摘要
Abstract
The mechanical properties of a polymer bonded explosive based on HMX thermally aged under 75 ℃ were investigated. The variation of the density of the samples is less than 0.003 g · Cm -3 before and after thermal aging. The results of the mechanical testing show that the compressive and tensile properties changed reversely after thermally treatment, that is, the compressive properties were decreased while the tensile properties were increased. Combined using the computer tomography ( piCT), X-ray photoelectron spectrometer (XPS) and ultrasonic microscope, it shows that the density decrease of the PBX maybe resulted from the volatilization of the lower-melting-point indigent of the formulation, that is the reason for the decrease of the compressive strength. Contrarily ,the interface bonding between the HMX crystals and the binder has been improved through the thermally aging such that the tensile mechanical properties as well as the tensile creep performance have been improved.关键词
材料力学/高聚物粘结炸药(PBX)/力学性能/热老化Key words
materials mechanics/ polymer bonded explosive (PBX)/ mechanical property/ aged分类
军事科技引用本文复制引用
温茂萍,周红萍,徐涛,陈天娜,庞海燕..高温老化后HMX基PBX的压缩与拉伸性能反向变化研究[J].含能材料,2011,19(4):420-424,5.基金项目
中物院科学技术发展基金(2010B0203023) （2010B0203023）
