火炸药学报2011，Vol.34Issue(5)：87-90,4.
利用硝酸-27S制备无硫可膨胀石墨的工艺研究
Study on Sulfur-Free Expandable Graphite Preparation Techniques by Nitric-27S
陈雅萍 1李舒艳 2罗瑞盈 1王煊军2
作者信息
- 1. 北京航空航天大学物理科学与核能工程学院,北京100191
- 2. 第二炮兵工程学院,陕西西安710025
- 折叠
摘要
Abstract
In order to recycle abandoned liquid propellants of nitric-27S,sulfur-free expandable graphite was prepared using nitric-27S and reagent KMnO4 as oxidant,and (CH3CO)20 as inserting reagent. The effect of reaction temperature, reaction time,the amount of nitric-27S(absorbed in water ),KMnO4 and(CH3CO)2O on expanded volume of expanded graphite was studied. The appearance and structure of expandable graphite was characterized by SEM and XRD. Optimal preparation conditions obtained by orthogonal test were:the best ratio of m(graphite): 7n(KMnO4) :V(Nitric-27S absorbed in water) :V( acetic anhydride) , 1 g : 1g : 4mL : 3 mL; reaction time, 120 min under the temperature of 25℃. The sulfur-free product with maximum expanding volume of 220mL/g was obtained.关键词
应用化学/硝酸-27S/液体推进剂/可膨胀石墨/制备工艺Key words
applied chemistry/nitric-27s/liquid propellant/expandable graphite/preparation techniques分类
军事科技引用本文复制引用
陈雅萍,李舒艳,罗瑞盈,王煊军..利用硝酸-27S制备无硫可膨胀石墨的工艺研究[J].火炸药学报,2011,34(5):87-90,4.
