HMX基PBX试件的热安全性及与高分子材料的相容性

Thermal Safety and Compatibilities with Silicone Rubber Cushion and Polyurethane Adhesive of PBX Specimen Based on HMX

采用自主研制的化学反应性试验在线检测系统,对HMX基高聚物粘结炸药试件的热安全性及与接触材料(硅泡沫垫层和聚氨酯粘接胶)的相容性进行了研究。结果表明,HMX基高聚物粘结炸药试件有较好的热稳定性。100℃下受热1.1 5个月的CO2和N2O的逸出量达0.1 mL·g-1。与HMX基高聚物粘结炸药试件相比,HMX基高聚物粘结炸药与硅泡沫垫层或聚氨酯粘接胶混合物的N2O的释出量稍有增加,但净增量较小,显示HMX基高聚物粘结炸药试件与两种接触材料是相容的。

The thermal safety of polymer bonded explosive（PBX） specimen based on HMX and their compatibility with contacted materials,silicone rubber cushion and polyurethane adhesive were investigated by on-line chemical reactivity test（CRT） detection device developed by the authors.The results show that the PBX specimen has a good thermal stability.The concentrations of CO2 and N2O evolved from the specimen are only 0.1 mL·g-1 after heated at 100 ℃ for 1.15 months.In comparison with PBX specimen,the concentration of N2O evolved from PBX specimen/silicone rubber cushion or polyurethane adhesive mixture has a very little increase,but the net gas evolution quantity of the two mixtures is small,indicating that PBX specimen and two contacted materials are compatible.