NPBA在黑索金表面的吸附研究  

Study on adsorption of NPBA on RDX surface

作　　者：彭芳华[1] 邓剑如[1] 申红光[1] 喻鸿钢[1] 孙大朋[1] 

机构地区：[1]湖南大学化学化工学院,长沙410082

出　　处：《固体火箭技术》2009年第3期310-313,共4页Journal of Solid Rocket Technology

基　　金：2007年装备预先研究基金(9140A28020607JW3201)

摘　　要：建立了中性聚合物键合剂NPBA在RDX颗粒表面吸附的定量检测方法。实验结果表明,RDX对NPBA的吸附量随平衡吸附时NPBA在硝化甘油中的质量百分含量Ce增加而迅速增加,当Ce达到0.275%时出现一平台,此平台一直延伸到0.837%处,随后吸附量随Ce增加而继续缓慢增加;吸附理论研究分析表明,Ce较小时形成单分子层吸附,随Ce的增加,转化成多分子层吸附;BET多分子层吸附模型能对吸附等温线作出较好描述。A quantitative method about neutral polymeric bonding agents （NPBA） adsorption on the surface of RDX was put forward. The results indicate that the adsorption capacity of RDX for NPBA increases along with the increase of Ce （ quality percentage of NPBA in NG under the balance adsorption） at first. When Ce reaches 0.275%, a flat line which extends to 0.837% appears, then the adsorption capacity increases slowly with the increase Ce. The adsorption theory analysis shows that the adsorption of single molecule is formed when the value of Ce is small, while with the increase of the Ce value, the adsorption turns to multi-molecular. The BET multi-molecular adsorption model can be used to describe the adsorption isotherm betterly.

关 键 词：NPBA RDX 吸附量 吸附等温线 BET多分子层吸附模型 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]