摘要
为有效调节改性双基(CMDB)推进剂(主要组分为硝化棉、硝化甘油和黑索今)的流变性能,利用HAAKE旋转流变仪研究了增塑剂、高分子增稠剂及温度对CMDB推进剂流变特性的影响。结果表明,CMDB推进剂为具有屈服应力的假塑性流体,调整增塑剂硝化甘油与吉纳的比例(m(NG)∶m(DINA)=10∶1,8∶1,6∶1),当增塑剂比例降低,CMDB推进剂粘度和屈服值增大,流动活化能减小;高分子增稠剂含量增加,CMDB推进剂粘度明显增大,流动活化能减小;温度升高,CMDB推进剂粘度减小。
In order to regulate the rheological properties of cast smokeless composite modified double based （CMDB） propellants composed of nitrocellulose, nitroglycerin and clotrimethylene-trinitramine, the influences of plasticizer, rheological modifier and temperature on the theological properties of cast CMDB propellants were studied by a HAAKE rotational viscometer. The results show that CMDB propellants are pseudoplastic fluid with yield stress. By adjusting the ratio between plasticizer nitroglycerin and DINA （m（NG） ： m（DINA） =10 ： 1 ,8 ： 1 ,6 ： 1 ）,with specific plasticizer reduces,the viscosity and yield of CMDB propellants increase and the flow activation energy decreases. With the increasing in theological modifier content, the viscosity of CMDB propellants increases obviously,and the flow activation energy decreases. The viscosity of CMDB propellants decreases at higher temperatures.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2012年第1期71-75,共5页
Chinese Journal of Energetic Materials
关键词
应用化学
改性双基(CMDB)推进剂
流变性能
流动活化能
流变调节剂
applied chemistry
composite modified double based （CMDB） propellant
theological property
flow activation
rheological modifier
