GAP基含能热塑性弹性体可控聚合与应用

Controllable Polymerization and Application of GAP⁃based Energetic Thermoplastic Elastomers

为了满足火炸药对不同数均相对分子质量(M_(n))热塑性黏合剂的需求,研究针对聚叠氮缩水甘油醚(GAP)基含能热塑性弹性体(GETPE)的Mn可控聚合与应用,考察了聚合反应介质、固含量等因素对GETPE聚合可控性的影响,探索了应用在线粘度监测法制备M_(n)可控GETPE的方法。结果表明,通过在线粘度监测法可较准确地控制GETPE产品的M_(n),在20000~50000范围内,误差率可控制在5%内;GETPE与火炸药常用材料相容性良好,在高能PBX炸药与高固含量推进剂之中具有良好的应用潜能。

In order to meet the requirements of explosives,thermoplastic elastomers with different number-average molecular weight(M_(n))were prepared. Controllable polymerization and application of glycidyl azide polymer(GAP)-based energetic thermoplastic elastomers(GETPE)were conducted. The influence of polymerization medium and solid content on controllable polymerization of GETPE was investigated,and on-line viscosity monitoring on Mnwas explored. The results show that Mnof GETPE can be accurately controlled by on-line viscosity monitoring. The error of Mnin the range of 20000-50000 can be tuned within±2000,and the error rate can be controlled within 5%. GETPE has excellent compatibility with commonly used explosives and good application potential in high solid content propellant and high energy polymer bonded explosives(PBXs).