摘要
为有效降低HM X的机械感度,采用聚氨酯与HM X原位结晶的方法对HM X进行包覆改性处理。借助扫描电镜(SEM)、激光粒度仪、X-射线衍射、机械感度测试等方法表征改性前后HM X的粒子形态、粒径、晶型、撞击感度和摩擦感度。结果表明,原位结晶包覆处理后的HM X晶体质量得到明显改善,晶体形貌更规整、颗粒表面缺陷显著减少,β-晶型没有改变,改性处理后HM X的撞击感度和摩擦感度分别从90%和70%降低到12%和36%。原位结晶包覆法是一种能有效降低炸药机械感度的方法。
In order to reduce the mechanical sensitivity of HMX efficiently,polyurethane in-situ crystallization coating method was used to modify HMX.The particle morphology,particle size,crystal type,impact sensitivity and friction sensitivity of original HMX and modified HMX were characterized by scan electric microscopy（SEM）,laser light scattering sizer,X-ray diffraction（XRD） and mechanical sensitivity test.The results show that the crystal quality of modified HMX has been improved significantly,crystal shape is more orbicular and particle surface has less defects compared with the original HMX sample.The crystal type of modified HMX is β which is the same as that of original HMX.The impact sensitivity and friction sensitivity of modified HMX reduce from 90% and 70% of original HMX to 12% and 36% respectively which indicates in-situ crystallization coating method is an efficient means of decreasing the mechanical sensitivity of HMX.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2011年第2期138-141,共4页
Chinese Journal of Energetic Materials
基金
中国工程物理研究院重大基金(2009A0302017)
关键词
物理化学
含能材料
降感
HMX
原位结晶包覆
physical chemistry
energetic materials
decreasing sensitivity
HMX
in-situ crystallization coating
